In short
Investing for multi-generational horizons (framed as a “100-year portfolio”) amid regime change, inflation risk, geopolitical/technological disruption, and shifting market correlations. Core claims: long-horizon investors should replace market benchmarks with purchasing-power preservation; redefine diversification as resiliency across radically different future paths (not just low Markowitz correlations); distinguish risk (measurable volatility) from uncertainty (unknown future regimes); and prioritize governance structures that prevent forced selling and align delegated managers’ evaluation horizons.
Guest
Inigo Frazier-Jenkins, Chief Investment Strategist at AllianceBernstein; advises family offices, sovereign wealth funds, and institutions on long-horizon multi-asset strategy. Background: bachelor’s in physics; two master’s degrees (history/philosophy of science; finance). Author of “The 100-Year Portfolio.”
Notable examples
post-1980 “benign inflation” era causing recency bias; post-2022 shift from negative stock-bond correlation to positive; gold as a zero-correlation diversifier; diminished role for government bonds under fiscal strain; wealth-destruction drivers: inflation, punitive taxes, behavioral risk, war, and asset seizure/confiscation.
Written by AI. May contain mistakes. Listen to the episode to check what was said.
Chapters
Tap a time to open that second in VOUnderstanding the 100-Year Portfolio
0:45 to 2:33
Exploration of long-horizon investing and its challenges.
“fundamentally rethink how they define diversification, risk management, benchmarking, tax planning, and the governance structures overlaying their portfolios.”
Inigo's Academic Background
2:33 to 4:28
Discussion about Inigo's educational journey and its relevance to finance.
“The second hour is devoted to enumerating the specific building blocks that form the core of a long-horizon portfolio.”
Empiricism and Market Theories
4:28 to 7:34
Analysis of market dynamics and the impact of investor psychology.
“All opinions expressed by me and my guests are solely our own opinions and should not be relied upon as the basis for financial decisions.”
The Need for Long-Term Views
7:34 to 11:24
Inigo explains the importance of long-term investment perspectives.
“I guess one of the things that's interesting is because the marketplace is a meeting of people with very different horizons, very different objectives, but that can be clouded for a long period of time.”
Historical Context of Investing
11:24 to 14:00
Comparison of investment strategies from different historical periods.
“But when you think strategically, I think there are a few things that stand out that do look very different from the kinds of unknowns that we've faced in recent decades.”
The Importance of Robust Portfolio Construction
14:00 to 14:54
Learn about the need for portfolio robustness and diversification across future paths.
“then that allows you access to certain kinds of return streams and way to build a portfolio in a way that can be very profitable.”
Historical Perspectives on Wealth Transfer
14:54 to 16:58
Explore the historical context of wealth transfer and governance in family portfolios.
“Well, we're going to have a chance to get into that.”
Lessons from Past Wealth Preservation
16:58 to 18:18
Discuss how past wealthy families managed their assets and the relevance today.
“And what lessons can be learned from that?”
Investment Horizons and Inflation Considerations
18:18 to 22:18
Understand the differences between short-term and ultra long-term investment strategies regarding inflation.
“perhaps wasn't quite the same way back then.”
Trends in Multi-Generational Investment Structures
22:18 to 23:48
Examine how family offices and sovereign wealth funds approach long-term investments.
“Obviously, along with that, we have considerations around growth rates.”
Show all 21 chapters
Wealth Concentration and Economic Structure
23:48 to 28:00
Explore the implications of wealth concentration on economies and democracy.
“and how has that share changed over time and over the course of your career?”
The Evolution of Wealth Preservation
28:00 to 29:10
Explore the historical changes in wealth preservation and the role of legal structures like dynasty trusts.
“So you're based out of the United Kingdom.”
Governance vs. Allocation in Long-Term Investing
29:10 to 30:50
Discuss the importance of governance over asset allocation for successful long-term portfolio management.
“And as I said, I think that there will be some political pressure and social pressure against big increases in inequality.”
Client Profiles and Wealth Management Challenges
30:50 to 33:10
Identify the types of clients seeking advice on long-term wealth management and their unique challenges.
“Maybe it's phrased in terms of a percentage probability of not losing money in real terms over D &R X years in the future.”
Preparing Heirs for Wealth Management
33:10 to 36:20
Understand the key mechanisms for ensuring heirs are prepared to manage inherited wealth responsibly.
“Who are the people that typically come to you and seek your advice to solve this particular problem.”
Liquidity Management in Long-Term Portfolios
36:20 to 37:40
Examine how liquidity needs are managed to avoid forced selling and maintain investment integrity.
“I think that people can set their reasons upfront and should be as explicit about them as they possibly can, and then one can try and respond to that in the best way possible.”
Impact of Taxation and Inflation on Wealth Preservation
37:40 to 40:40
Analyze how tax regimes and inflation affect long-term investment strategies and wealth preservation.
“not let that drift upwards in good times, for example, and be more kind of focused on it as being really a hard, long-term kind of set number.”
Redefining Investment Benchmarks
40:40 to 42:10
Discuss the shift from traditional benchmarks to focusing on purchasing power preservation in investments.
“So again, I'm glad you brought up inflation because in the paper, you advocate abandoning market-based cross-asset benchmarking and other institutional financial frameworks in favor of purchasing power preservation.”
The Complexity of Inflation and Asset Management
42:10 to 44:16
Learn about the nuanced perspective on inflation's impact on asset allocation strategies.
“Again, it's not a bearish message, it's just a more complicated message.”
Reevaluating Diversification in Investment Strategies
44:16 to 47:38
Discover why traditional diversification methods may be outdated and how to adapt to new market realities.
“And that ends up being there's a dominant sort of asset that one has exposure to.”
The Total Portfolio Approach to Risk Management
47:38 to 50:32
Understand the total portfolio approach and its significance in today's investment landscape.
“2022, the correlation of stock returns and bond returns was negative.”
Transcript
Automatic transcript. May contain errors.0:00Demetri Kofinas:What's up, everybody? My name is Demetri Kofinas, and you're listening to Hidden Forces, a podcast that inspires investors, entrepreneurs, and everyday citizens to challenge consensus narratives and learn how to think critically about the systems of power shaping our world. My guest in this episode of Hidden Forces is Inigo Frazier-Jenkins, the Chief Investment Strategist at Alliance Bernstein, where he advises family offices, sovereign wealth funds, and institutional investors on long-horizon portfolio construction and multi-asset strategy. Inigo is also the author of a recently published paper titled The 100-Year Portfolio, a state of mind rather than an allocation, in which he argues that as the investment regimes of the last four decades break down, investors with multi-generational time horizons need to fundamentally rethink how they define diversification, risk management, benchmarking, tax planning, and the governance structures overlaying their portfolios.
1:00Demetri Kofinas:By the end of today's conversation, you will have a clearer understanding of why the investment frameworks that worked over the last 40 years may be inadequately suited to help investors and portfolio managers navigate the decades ahead, how governance and the psychology of long-term stewardship matter more than any single allocation decision, why purchasing power preservation should replace market benchmarks as the organizing principle for long-horizon portfolios, how to think about the differences between risk and uncertainty when investing over long-time horizons, and what the shifting macro landscape means for investors navigating a once-in-a-century transition across geopolitical, economic, and technological paradigms.
1:42Demetri Kofinas:Inigo and I spend the first hour of our conversation today discussing the intellectual foundations of the 100-year portfolio, why investors need to strip away the recency bias of the post-1980 era of benign inflation and their antiquated assumptions about the negative correlation of stocks to bonds, how macro forces like AI, climate change, and the breakdown of the post-World War II rules-based liberal order are widening the range of possible futures in ways that make long-run forecasting exceptionally difficult, why governance matters more than allocation when investing across generations, and how diversification itself must be redefined, not as low correlation among assets within the Markowitz framework, but as resiliency in the face of radical uncertainty, which is what multi-generational investing truly demands.
2:33Demetri Kofinas:The second hour is devoted to enumerating the specific building blocks that form the core of a long-horizon portfolio. The case for a preponderance of equities as the largest real asset class, the role of gold as a zero-correlation diversifier, the enduring logic of direct real estate ownership, why government bonds should play a diminished role in an era of positive stock bond correlation and fiscal strain, and the primary drivers of wealth destruction over time, including inflation, punitive tax regimes, behavioral risk factors, the attendant risks of war, and the possibility of outright asset seizure and confiscation.
3:10Demetri Kofinas:We end the episode with a discussion about the overall macro picture, the shift in U.S. Treasury ownership from price-insensitive central bank buyers to price-sensitive households and investment funds, whether fiscal unsustainability threatens U.S. exceptionalism, the risks posed to dollar-based investors, and the capital flow dynamics, including the resurrection of capital controls in developed countries that could reshape global markets in the years ahead. If you want access to all of this conversation, go to hiddenforces.io slash subscribe and join our premium feed, which you can listen to on your mobile device using your favorite podcast app, just like you're listening to this episode right now.
3:53Demetri Kofinas:Now, if you want to join in on the conversation and become a member of the Hidden Forces Genius community, which includes Q &A calls with guests, discounted access to third-party research and analysis, and in-person events like our intimate dinners and weekend retreats, you can also do that on our subscriber page. And if you still have questions, feel free to send an email to info at hiddenforces.io and I or someone from our team will get right back to you. Lastly, because this conversation deals with investing, nothing we say on this podcast can or should be viewed as financial advice. All opinions expressed by me and my guests are solely our own opinions and should not be relied upon as the basis for financial decisions.
4:38Demetri Kofinas:And with that, please enjoy this incredibly valuable and in-depth conversation with my guest, Inigo Frazier-Jenkins.
4:51Demetri Kofinas:Inigo Frazier-Jenkins, welcome to Hidden Forces. Thank you very much for having me on the show. I'm stoked. Stoked I was telling you to have you on the show because this has been a personal obsession of mine, what we're going to talk about today for the last five years. But also, we'll have a chance to broaden the discussion beyond just portfolio construction, risk management, and how to invest for 100 years to talk about the economy and financial markets. Before we do that, I was doing a little research into your biography and I see that you have a bachelor's in physics, which is maybe not all that surprising given that you work in finance, but you also have two master's degrees, one in history and philosophy of science and the other in finance.
5:32Demetri Kofinas:Tell me a little bit about your background. Let's start first with the degrees in physics and philosophy of science and history. Tell me a little bit about that background. What led to your interest there and how did that eventually lead you into finance? Yeah, if you're asking about why I hang around at university for so long, it's mainly to have a clue of what I want to do next. So staying at university is not a better option. But also, I've always been interested in, I guess, these kind of questions that are more fundamental, hence spending that time doing history and philosophy of science.
6:01And finishing that as a master's, I kind of realized I wanted to move to something at least a little bit more practical, hence moving to finance. And so that time spent doing history of philosophy, I found fascinating. But also, I think it does, in the background, at least to a little extent, inform some of the work we still do now, particularly in some of the sort of essays that prompt questions that go out beyond some of the sort of bare minimums of portfolio construction. What history did you focus on? That was very much history of science. So the development of modern science and particularly on the philosophical linkages that that kind of provokes.
6:39Some of it is relevant to finance, I'd argue. Some of it's interesting also in the context of, I guess, this big force we all face now in terms of AI and some of the deeper sort of epistemological questions that AI raises that we don't really have answers for yet.
6:53Demetri Kofinas:Do you feel like empiricism and the ability to tie prices back to some objective reality has become less relevant in investing over the course of your career? That's a very good question, and one that's really hard to answer. I mean, I guess you could take that in different ways. I mean, there's always the hope, I guess, there is some fundamental value attached to asset prices that may be not directly observable. And I guess the market as this very efficient system tries to get you towards that price. And the question is, is that distorted by, let's say, flows into passive assets or particular horizons that investors might have?
7:35I think that force is always a work. I guess one of the things that's interesting is because the marketplace is a meeting of people with very different horizons, very different objectives, but that can be clouded for a long period of time. I mean, In principle, there has been this great democratization of access to systems, be it trading or informing research decisions now that simply didn't exist 20 years ago. But at the same time, there are other clouding forces perhaps that prevent people from acting on these.
8:09Demetri Kofinas:I ask this question because I imagine that you studied the work of people like Karl Popper, who George Soros has often cited when giving credit for his theories on reflexivity. And for a long time, this is more or less how I imagined that markets worked, that there was some relationship, albeit at times tenuous, between the subjective price of an asset and the objective value that we assigned to it using commonly agreed upon valuation metrics. And those two things can diverge substantially, but eventually they would converge. And while that's still probably true, the duration over which those two things can remain out of equilibrium is much greater than I ever imagined it could be when I was younger.
8:56Yeah, I think there is some truth in that. I mean, particularly when we have forces at work today, which seem like they're very different from ones that have been around for multiple decades, where people still operate for good reason, you know, on rules of thumb formed over the course of their working experience. That can be kind of really hard to can change. And also, I think, you know, it's relevant in terms of the way people think about theory formation in finance. And you mentioned kind of Popper. And I think, you know, against that kind of background, we have to be really humble in the finance industry about the nature of the theories that we kind of come up with.
9:34I mean, I certainly take the view that finance and social science in general is not a science. You don't have this access to universal statements, but often people think that we do, and that can be dangerous in times of regime change.
9:48Demetri Kofinas:So what prompted this conversation today is a paper you recently published titled, The 100-Year Portfolio, A State of Mind Rather Than an Allocation. Just give us a basic idea of what this paper is about, and how long have you been working on or implementing some version of what you detail in it? Yeah, so I guess this paper is trying to take a step back from the kind of time horizons that dominate most conversations of most people in the industry and think about the longer horizon. I mean, we've often been writing about longer horizon views in our research in recent years, but this goes a step beyond those horizons.
10:27One of the prompting forces is the idea that we need to be very careful of recency bias in the way that people approach markets. And I think there are different kinds of recency bias that one can point to. There's the recency bias of the post-1980 period of benign inflation, high growth, stock bond correlation being negative, etc. There's also a much longer recency bias of the post-World War II, US-led rules-based order. And as these regimes seem like they don't apply in the same way anymore, we have to think very carefully about how we strip away that kind of recency bias and what we're left with afterwards.
11:08So on the one hand, there's that kind of force. At the same time, I'm very aware that it seems almost absurd to be writing a paper talking about 100 years forward when there is so much fundamental change happening in the world. Now, I wasn't very careful of not falling into the trap of saying, oh, the future looks very uncertain, because you could always say that at any year back through time. But when you think strategically, I think there are a few things that stand out that do look very different from the kinds of unknowns that we've faced in recent decades. And I guess the few that stand out, number one is AI and the prognosis for that, both economically and socially.
11:52And the other is climate change. And perhaps I'd add on to that maybe the geopolitical change I referenced earlier. So you have these forces that are incredibly disruptive, and it makes it very hard to make long-run pronouncements. So on the one hand, you have that. But on the same time, I do get routinely asked in meetings about forming long-horizon views. And some of that is to do with the emergence of more investors who do genuinely have a multi-generational timescale to their investments. So this paper is trying to address the needs of those kinds of investors.
12:25Demetri Kofinas:So you kind of preempted one or a couple of my questions, which is, are there certain periods in history where having an ultra long-term approach to portfolio management is especially important? And is it harder to invest for 100 years today than it was 100 years ago, even though that statement is kind of ridiculous in and of itself, because the whole concept of 100-year portfolio is that it captures sort of the totality of all the potential risks that an investor could face over time. But that's a fantastic question. And I simply don't know how to answer the question about whether it's more relevant now than 100 years ago, because you can't avoid looking back and thinking, gosh, some really big adjustments happened over that timeframe.
13:04But it does point to at least some of the biases we need to be aware of when we're thinking about long horizon data, but then we come back to. Yeah, I think the way you look over really long horizons is evident there are long sweeps of history when regimes apply. So I'd say that there's been this period since the early 80s, doesn't mention when inflation's come down, bond deals have come down, returns have been good in real and nominal terms. There have been periods, say in the post-war period, up until that period when, again, there was a long period of growth, although ended by a period when bond deals did move higher over the course of that time.
13:43There's also the period of the Pax Britannica period in the late 19th century when, you know, again, there was a period when it was possible to achieve long-run positive real returns from low-risk assets. And outside those periods, often investing was much, much harder, much more kind of turbulent. So yes, if one's willing to say, I'm in a certain regime and invest for that period, then that allows you access to certain kinds of return streams and way to build a portfolio in a way that can be very profitable. But I guess the key thing here, though, is the idea of needing to be robust across different paths, because there are times in history when the range of possible paths open to one seem very broad indeed.
14:27And again, getting away from the idea of just saying that the future always looks uncertain, but something more fundamental than that. You know, maybe one of the things that we can kind of get into is the idea that what counts as diversification changes, you know, if you're in that kind of environment. Because suddenly, rather than talking about diversification in a sense of trying to find things that have a low correlation amongst themselves, we're talking about diversification across different possible paths of the future. And that is subtly different, I think.
14:54Demetri Kofinas:Well, we're going to have a chance to get into that. One more broad question about portfolio construction in the context of investing over multiple generations for the ultra long term. Have you spent any time researching how... Well, actually, let me rephrase the question with adding this additional context, which is that we are living through the greatest generational wealth transfer in, what would you say, 100 years? When was the last time that we saw a period like this? Was it in the first quarter of the 20th century? You probably have to go to that kind of period to go and find something similar.
15:32I mean, comparisons are very hard, of course, because obviously you had huge regional disparity back then in a way that perhaps we don't have now in quite the same way. But yes, there has been this extraordinary buildup of wealth at the top end distribution. And some of the academic works been done over time, you know, shows that those sort of inequalities can build up over time for a host of reasons. And the thing that tends to destroy that or compress it is times of sort of huge social and political unrest. So you have to go back to, I guess, probably before World War I to go and see, you know, a similar period when there'd been this apparently benign period and the ability to pass on wealth in a big way.
16:12Of course, that's skirting over the fact that views on what counts as an equilibrium level of tax policy have shifted enormously. since that period. So the reason I asked the question is because what I wanted to know is,
16:26Demetri Kofinas:have you done any research into how the robber barons attempted to structure or overlay governance onto the portfolios that they handed over to their children? Of course, there were not as many financial products back then. They weren't the same financial frameworks. The whole process was less sophisticated. But to the extent that it's relevant, were there any important lessons that you were able to learn by viewing how the successful families of the past that have been able to shield and protect and pass on wealth from generation onto generation were able to do it? And what lessons can be learned from that?
17:00Yes, we have gone back in time and look, but I mean, we didn't include much of that in the paper simply because the answer is those portfolios tend to be dominated by real estate in a way that hasn't been true for a long period of time. So yes, there are examples of either families or quasi-institutions that have existed for long periods of time. So some endowments have, for example, but those tend to be just very dominated by real estate. I mean, the other thing that makes it hard to compare is that, you know, since the 70s, there's been this, you know, huge outperformance of financial assets versus sort of real world assets in a way that is very unusual compared to history.
17:37And that's obviously part of the reason why both the economy is more financialized, but portfolios are more financialized now. So, you know, a lot of those lessons are not necessarily directly applicable, except, I mean, I think one of the things we'll come back to is the notion of real returns being important is one thing that does sort of feed through that. So, you know, again, pre-World War I, for a long time, inflation hadn't been a huge issue. And one of the theses that we can put forward is that actually inflation is a big problem now. So again, that does change the way one thinks about what is it that destroys wealth over long periods of time.
18:12And we would point to, I guess, the risk of inflation now, at least, being certainly one of those risks in a way, perhaps wasn't quite the same way back then.
18:20Demetri Kofinas:And presumably also asset values have become a bigger driver of wealth than the reinvestment of income generated from the assets themselves. I mean, that's been true in the last 40 years, yes. In a way, it's been unusual. Again, partly because you've seen this financialization, this levering up in various ways, the levering up of government balance sheets probably most obviously, and something that's very kind of pertinent now when we think about the bond market, but also more subtle levering up too, like the whole process of corporates buying back stock and the stock market shrinking in terms of number of shares over a long period of time.
18:55I think that counts as a levering up as well. And these things have boosted asset prices. And so that has indeed become a larger part. And I guess that's reflected now in a world where we would say that in a cross-asset perspective, most asset classes are fully valued slash maybe expensive. That doesn't mean it should be interpreted as a bearish statement. It just means that it's very hard to make any claim about the future being one based on asset valuations. I'm going up further than here.
19:23Demetri Kofinas:So I have a few more clarifying questions, and this may come across as a bit pedantic, but bear with me please. What type of individual or institutions would want to invest for the ultra long term? And what is the minimum net worth that you've seen or that you imagine someone would need to meet in order to even consider investing this way? I don't think there's a minimum level kind of per se. I think it's more just decisions around what investment is for and how focused people are on that. So I guess the most obvious categories investors are going to be family offices, endowments, sovereign wealth entities in various ways.
20:02But those are all investors that arguably need to think about a multi-generational approach. So clearly they are a very significant part of global wealth at the moment and family offices in particular have kind of grown in number enormously in recent decades.
20:17Demetri Kofinas:And that's actually one of my next questions, but how is investing for the ultra long term? And when we say ultra long term, what do we mean? Like three generations or more? How do we define that? Yes, I mean, I put 100 years in the book and title of the note, just a notional number. I mean, of course, you know, it becomes somewhat arbitrary. I guess the point is it's longer than one person's lifetime is the key thing. And also it's long enough so that it's, you know, detached from business cycle risk, detached from near term kind of political kind of views that people might have. And so it's just a horizon that's longer than that.
20:49There is also, though, a methodological element to it as well in terms of what are the forces or variables we need to focus on here? Because over horizons of, say, 10 years and 20 years, I would argue that valuation matters a lot. And there's always a case made for mean reversion having a role to play. But over really long horizons, our research suggests that becomes somewhat less important. And so you have to really think about things like real growth rates, for example, as mattering much more. Okay.
21:17Demetri Kofinas:So that was going to be my question essentially, which is how does investing for the ultra long-term differ from investing for the short-term or even investing with a horizon spanning 20 or 30 years? Because I imagine it isn't just about the philosophy, but it's also about the legal structures that you seek to implement in doing so. So what would you say are the really key distinctions here? Yeah. I guess you could always think of investing of different horizons. I mean, firstly, some people would claim that the long horizon is simply a concatenation of short-term periods. I don't think that's necessarily the case because there are certain investment techniques that you would be able to bring to bear over long horizons, but that you wouldn't in a series of short horizons, although it prompts all kinds of agency problems if that's being outsourced to other investors, for example.
22:03So over short horizons, horizons less than a year, things that are to do with more technical considerations and momentum and flows matter a lot. over horizons that are closer to the 10-year mark. But as I mentioned, I think that the valuation plays a very important role. Obviously, along with that, we have considerations around growth rates. And as horizons become much longer than that, I think that the probability of defending purchasing power becomes critically important. So the ability to deliver real return. Now, I guess you might say that many investors can care about the inflation-adjusted value of their assets.
22:40And so I'm worried about hedging inflation risk, if you like. But what people mean by that varies a lot depending on their horizon. So, for example, if you take an investor who has a horizon of rolling one year and they worry about inflation risk, what they have to do in their portfolio is buy assets or construct it in a way that actually correlates with inflation. So they have to buy things like commodities or tip securities, et cetera, that actually kind of correlate with inflation. If you worry about inflation, but you have a longer horizon, I would argue you don't actually care about the correlation of assets with inflation per se.
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23:13But what you care about much more is what is the probability that this asset will deliver a real return over an extended period of elevated and potentially volatile inflation? And that's not necessarily the same kind of asset. It could be equities. It could be farmland that has no correlation short term with inflation, et cetera.
23:29Demetri Kofinas:So you argue in the paper that with the increased share of invested assets managed by family offices and wealthy individuals, and also by sovereign wealth funds, more assets will be invested with a view toward genuinely long horizons spanning more than a single generation. What share of global investable assets sit in vehicles with ultra long multi-generational structural horizons, and how has that share changed over time and over the course of your career? Yeah, it's very hard to get really good numbers in this, but it's a small minority of assets at the moment. So on numbers we've looked at, it's sort of high single digits percentage of assets at best.
24:08I mean, it depends a lot on how you count it. But I think also that's reinforced somewhat by shifts that are happening elsewhere. So for example, there's a much larger pool of assets that underpin the global pension system, and that's undergoing its own slow change over time away from being dominated by defined benefits, shifting towards defined contribution, which happens in parallel to be shifting investors' concern away from normal assets out to real assets. So there's some other pools of assets that are operating on still long, but shorter horizons that happen to be moving the same way. And that perhaps amplifies even more some of the issues raised in the snow.
24:45Demetri Kofinas:Well, it seems that the percentage of each marginal dollar is increasing. And it's really, I don't have a number to put on this. I've read different reports, but it feels to be very true. I mean, there feels that there's been really an accelerated growth in the concentration of wealth at the very highest levels of society. And I'm curious, we're somewhat deviating a bit here from the portfolio discussion, and we'll come back to it. But how do you think about how this impacts the structure of economies in terms of where demand goes and price signals and market prices, and how does it impact the democratic process, so to speak?
25:26Demetri Kofinas:And one area where we see this, I think, right now is in the AI debate and concerns about concentration risk, et cetera. Yeah, these are great questions. So, I mean, I guess a lot of this goes back to the seminal work that Piketty did and published in, I think it was 2015, Capital and 21st Century, and his exhaustive documentation of the shift in wealth inequality over time. And of course, it's interesting that a few things can come out from that. So one is that, I guess, there's always some degree of wealth inequality, but if there are strong increase in asset prices, then that tends to increase inequality because it's the rich that own the mother's assets.
26:03But then the strange thing that happened is that you also got this shift in income inequality driven by a shift in wage structure across societies. And so you've had these two forces which have driven inequality. And then as you say, it's front and center of the AI debate where often this question is raised, does the path of AI which we happen to be going on, which is a choice, this hasn't got to be this way, one whereby there is a risk for jobs for many people, but a small group of people end up being much richer as a result. Now, again, I don't think is anything inherent in AI that means it has to be that way.
26:38But that seems to be the social and political path that we're on as a result. So you see this in equality, but you also see it in willingness of voters to have systems whereby corporates take an increasingly large part of the pie. That's certainly happening in the US. And so there's a separate podcast story, really, but there's a whole story around US exceptionalism, why that exists and why I'd want to defend it. But one part of that is the profit share of firms in the US is as high as it's been in decades, and it seems to be higher in the near term. And rather remarkably, perhaps, so far, these kind of voters haven't kind of pushed back on that.
27:19Now, I do think there has to be some kind of limit both to profit share and to inequality. There's this very interesting large work done by Luke Kemp in recent years called Goliath's Curse, where in the book, he goes back through the long sweep of human history and shows that one key predictor to societal collapse is an increase in inequality and with not too subtle references to, I guess, the issue that we face today. So, you know, I do think it does prompt really quite important questions about, you know, the level of social acceptedness. But that's something which I guess we're beginning to see perhaps in some of the backlash against AI at the moment.
28:00Demetri Kofinas:So you're based out of the United Kingdom. I don't know what the laws are there or in other European countries, but over the last 30 or 40 years, a majority of US states have either abolished or effectively gutted the rule against perpetuities, which is essentially a common law doctrine that for centuries forced dynastic wealth back into individual hands within roughly 100 years where it would be subject to estate taxes and the normal entropy of generational wealth transfer. The result is the dynasty trust, which allows wealth to compound inside a tax sheltered structure essentially in perpetuity.
28:38Demetri Kofinas:When you think about this shift toward longer investment horizons and more concentrated pools of capital, how much of what we're seeing is a structural change in the legal architecture that now makes dynastic wealth preservation more possible in a way that it maybe wouldn't have been even for the wealthiest families like the Rockefellers. I see this as mainly driven by just the shifts in wealth creation rather than necessarily legal choices. Now, obviously, legal choices can come along and disrupt this, accelerate it, counteract it in some ways. And as I said, I think that there will be some political pressure and social pressure against big increases in inequality.
29:18But no, I see this mainly as a function of the process we've gone through for a long time, which is this huge generation of wealth and the obvious desire to set up structures that allow that to exist in perpetuity. But it does go beyond that as well, though. So again, if you think about the role of sovereign wealth funds as well, and the sort of gray area between a sovereign wealth fund and a national pension system that is funded in some way. And I think there is a kind of gray area there. Then there is a sort of recognition of the idea that there are sort of savings needs and that are truly long-term and critically are inflation linked in nature that have to be met through our bigger structures.
29:58Demetri Kofinas:So as I mentioned probably a number of times already, the subtitle of your paper is a state of mind rather than an allocation. What is the mindset that someone needs to have to create the conditions under which a portfolio will be successfully managed for 100 years? And how does this mindset relate to governance? Yeah. So I guess the first obvious point to make is that people are allowed to rebalance their portfolios in a 100-year horizon. But there isn't one allocation that we end up with at the end of the note and say, buy this and hold it for 100 years. Clearly not. Does that also imply that governance is more important than allocation?
30:34I think it implies that if one's thinking of long horizons, then governance has a a primacy which i guess probably always the case but it has a really important role to play if you want to think in truly of long-term ways about your portfolio i mean for example it so it affects the kind of target return that one wants to achieve so presumably it pushes one towards a target phrased something in the terms of needing to preserve purchasing power far into the future Maybe that's a real return target. Maybe it's phrased in terms of a percentage probability of not losing money in real terms over D &R X years in the future.
31:15I think it all comes down to other definitions of risk as well. So, for example, it's quite common to think of risk in a shorthand way as a volatility of returns in a certain year, but that might not be the right way to go and think about it. There's a section of paper where we show that if you think of the volatility of multi-year holding periods, then the relative volatility of equities and bonds actually looks very different once you extend the time horizon out. And if you look at the volatility of 20-year holding periods, then essentially the vol of stocks and bonds are equal. Or phrased another way, the probability of a real loss on bonds becomes greater than the probability of a real loss on equities once you extend out beyond a few business cycles.
31:55So that implies there's a governance need there in thinking about particular kinds of definitions of risk. I think it comes out also in attitudes towards illiquidity. I mean, unsurprisingly, if you're having a very long horizon, then putting a huge weight on a need for liquidity at a certain point in time is probably less likely. I mean, beyond a certain set of considerations of spending needs phrased in a particular way. And also, if some element of the returns are delegated out, it implies that the time horizon of which you assess the success or otherwise of the delegated returns should be made a timescale that's appropriate to kind of return and generating process involved.
32:40So to extremes, you can imagine a kind of cross-asset momentum investing process where the success or failure and measured over short horizons and a cross asset value driven process where it should probably be years.
32:54Demetri Kofinas:So I'd like to stay with this part of the discussion a little bit, because I feel like this is the most wicked problem related to this entire problem set, which is essentially... Now, first of all, how many of the folks that come to you are... Who are your typical clients? Maybe we'll start with that. Who are the people that typically come to you and seek your advice to solve this particular problem. Yeah. So I guess quite lucky, I speak to a very broad range of clients. So I mean, the clients who are asking these kinds of questions tend to be family offices, sovereign wealth funds, et cetera.
33:27Whereas I guess the broad super clients I speak to involves pension systems, insurance companies, et cetera.
33:33Demetri Kofinas:So for me, as I said, this is a problem that I've been trying to solve for several years slowly. And it seems that one of the central problems here is control. If you're in charge of managing your family's portfolio and you're the one that's created the wealth and et cetera, et cetera, and you want to set the conditions such that your heirs and their heirs will be able to successfully manage the responsibilities associated with the gains that they will accumulate as a result of the fortune that that will be bequeathed onto them, you can only do so much to sort of control it from the grave. You have to increasingly create the conditions by which they will be able to manage it over time.
34:17Demetri Kofinas:And so essentially my question is, what does that conversation look like when you're speaking with, let's say, a patriarch or a family office where this is the problem that they have, and again, they won't live forever? So what are the key mechanisms that can be put in place to increase the probability that wealth will be handed down successfully. And let's put aside for a moment the important things that need to be done within the family to prepare the children and their children to be responsible, to have the right values, et cetera. Yeah. So my colleagues who spend time working in individual families spend a huge amount of time on these kinds of questions and helping to tell them with that.
34:58I mean, that's one of the reasons, I guess, why we have the focus on governance in the note and instilling structure around governance, which is going to focus on an appropriate time horizon. I think it comes matched with questions around education and thinking around the role that housing setting that up. And also, it can also stretch to, and think about these longer horizons, thinking about other needs or spending requirements that are going to be set up on a long horizon, which could be issues that matter to the family or matter to a sovereign wealth entity, for example, in some way.
35:33Demetri Kofinas:So if you're investing for 100 years, by definition, you're making a conscious choice to forego the consumption of products, services, and resources today. Is it important, therefore, to have a clearly articulated reason for why you're doing that other than just, I want to invest for 100 years? Yeah. I think being articulate about the reason why investing is always important. But that's true, frankly, over one year horizon and over 100 years. But perhaps it becomes even more important over longer horizons since you have a greater freedom of choices made - And a greater fortune that you could spend.
36:11Demetri Kofinas:So do certain reasons matter more than others? Are certain reasons better or more aligned with wealth preservation and success over long horizons than others in your experience? I'm not sure. I think that people can set their reasons upfront and should be as explicit about them as they possibly can, and then one can try and respond to that in the best way possible. And if people have particular, for example, payout needs or particular requirements in mind, those guys can set up front. I mean, the same way that's similar, not quite the same, but it's similar to other asset allocation decisions that we help people with over more normal horizons, which often come down to set your liquidity requirement at first, and then other requirements to fit around that.
36:53It's just in this case, but that liquidity requirement is presumably very small.
36:57Demetri Kofinas:I'm really glad you mentioned liquidity because presumably for the strategy to work, the portfolio manager must avoid becoming a forced seller at any point for any reason. What are the optimal liquidity needs of such a portfolio? Yes. I think avoid being a forced seller is obviously key in this. There is an interesting question mark about how much liquidity backstop is needed. So I guess number one, obviously any needed payout has to be set outside of this structure. So that's a set sort of ex ante, if you like. Can you elaborate on what that means? Well, I mean, in the case of either some national entities or families, there'll be some suspending requirement that is required each year.
37:38And the key thing is to be overt about that and not let that drift upwards in good times, for example, and be more kind of focused on it as being really a hard, long-term kind of set number. And if it is going to be changed, that requires some due deliberation. Again, not just because it happens to be a run of five years or 10 years of good numbers. But then beyond that, there's a question of, is there a need for holding liquidity back to be opportunistic at certain points in time? Now, there are two sides to this. One is making sure there's enough liquidity to not be a foreseller. And that comes front and center.
38:13But the value of having liquidity that's held back kind of depends on are you actually going to use it? And are you going to use it to invest in broad asset class decisions or single assets that might be trading at very dislocated prices? Now, if you are going to be the kind of investor who is willing to jump into those kind of opportunities, then the value of that extra liquidity held back will be greater. If you're less certain about it, or if the opportunities you're looking for are only at the asset class level, then that can be an opportunity cost and drag on the portfolio, in which case you end up with a portfolio that's closer to being fully invested.
38:52Demetri Kofinas:So I have a section in my outline labeled risks of wealth destruction. So we might end up actually touching on that later, but are there certain periods where having discipline around liquidity management is especially important. When I say periods, I mean regimes, for example, high tax regimes, where you have highly punitive capital gains taxes, where selling assets from the portfolio will devastate your long-term returns. How do you think about the fact that these cycles themselves can be generational? And so one generation may have to be very different in how it manages its liquidity needs than a different generation.
39:31Yes. I mean, that I think is a point to questions of both liquidity, but also tax arrangements in general. I mean, sort of slightly separate from this and running through the whole paper, I have this view that at least for foreseeable decades, we probably face somewhat a lower return future. And it's evident that government debt to GDP is a very high level. So whatever the current crop of politicians say across many countries, my view is tax rates are going up you know at some horizon and so the combination of those of the two views imply that the value to a taxable investor of the tax planning actually becomes a larger share of the take home returns than they've had for many years now again that applies over shorter horizons as well but that's certainly a consideration that runs through the note you know I think, though, that in the section of the note where we do talk about damages, wealth in the long run, just to bring that in, because I think it's relevant at this stage, inflation is a key one.
40:37I mean, yes, at certain points, impunity of taxes can be a problem, or social dislocation can be in a very acute problem. It's very hard to diversify against, but making sure that you are generating those real returns over long periods of time, that is the critical long-run theme that runs through constructing portfolios, these kind of horizons.
40:56Demetri Kofinas:So again, I'm glad you brought up inflation because in the paper, you advocate abandoning market-based cross-asset benchmarking and other institutional financial frameworks in favor of purchasing power preservation. Can you elaborate on this? What do you mean by that, purchasing power preservation? Yeah. But I really mean that the reason why most people invest and hasn't got to be even for long horizons is to meet some need in the real world. I mean, I guess it was obviously retirement, but it could be educational needs or - Potential healthcare needs. Exactly. Starting a business. But these are things that are clearly real spending requirements and they have an inflation number attached to them.
41:29So investing, for most people, has to involve achieving an ability to at least preserve and ideally kind of grow your ability to spend on real terms. So hence, inflation, I think, is a more natural long run benchmark for many people. Now, it happens to be the case, we've been through, at least in the 20 years prior to COVID anyway, a period where inflation had been very benign, asset class returns were very strong in real terms. People kind of perhaps were lulled into false senses of security, their ability to outperform inflation while taking a relatively low level of risk. And I think that is pretty different in future.
42:12Again, it's not a bearish message, it's just a more complicated message. So I guess that's the second reason why I think inflation matters. And the third is, I think in the finance industry, we have become a bit over-obsessed by benchmarks and this whole kind of cottage industry of just kind of growth and benchmarks in all kinds of ways. I mean, we showed in a paper a while ago that the number of equity indices in the world was already measured in the millions, whereas there only are about 45 ,000 stocks all in in the world, including small caps. But the idea there being at least 60 or 70 times as many buckets to put things in as there are individual assets seems a bit ridiculous.
42:49Yes. And so that raised some questions around the in about the risk of, you know, being overly focused on benchmarks, even within an asset class. And then if you think cross asset and the problem becomes much worse. Now, I would argue that there is no such thing as a default natural cross asset benchmark. mark. I mean, some people would say, oh, well, surely it's 60-40. Well, yes, 60-40 is often the default allocation people use, but it happens to have done well in the last 40 or 50 years. But there's no theoretical basis for it, really. It just empirically happened to work well in this kind of time period.
43:24And I'd argue that there isn't a natural way to weight assets across asset classes. You have to think about it in a more risk-based approach, or think about targeting inflation. So that becomes the thing that is an exogenous level over which you have to achieve a return.
43:43Demetri Kofinas:What does that look like in practice? I mean, even targeting inflation is hard to quantify. You could target CPI, but even that doesn't necessarily capture what we're talking about. And it's also arbitrary. It can be adjusted by the government depending on the regime. So how would you describe the most sort of prudent way of approaching this in practice? I mean, I guess it just means, especially over long horizons, that the assets you're buying are going to be biased much more towards real assets. Assets that either by the legal nature underpinning the return stream or empirically through the return for distribution that they generate, that these are assets that deliver a return in excess of inflation.
44:23And that ends up being there's a dominant sort of asset that one has exposure to. One thinks about the risk metrics that you use, probably more geared towards the risk of a real loss over time horizon, but that's appropriate. So if you have those two things that I would point to, there's always a question mark about what level of inflation to go and use because everyone actually in practice faces a different level of inflation, but it becomes very cumbersome to go and think about that for many, many people. So I guess for a shorthand approach, you'd say, well, I want to outperform an X-year forward view on inflation in the domicile that one's based in, obviously, one can come up with something much more specific than that if people have conveyed particular needs.
45:08What are some examples of assets that aren't real? I guess nominal bonds is the obvious. So obviously, you can guarantee a return stream set in nominal terms. Also, I'd argue there are elements of the equity market that are not real. Overall, I say in the note that the equity market is the biggest real asset out there, And the basis for that is the ability of corporates to pass through inflation by increasing prices and passing it through dividends. But there are other elements of the equity market, such as issuance versus buyback activity and levering up of corporates, which are financial activities rather than real activities.
45:44Demetri Kofinas:Are growth stocks less real than value stocks or value stocks that issue a healthy dividend, even though they're both real companies? Is there something? That depends, I guess, on the nature of the return streaming generator. So for example, there are growth stocks, say in the healthcare sector, where there's a good long run ability or a good long run evidence that one can raise prices in line with or in excess of broader inflation. So they count as delivering a real growth in the long term. Likewise, if there are you know, upward shocks in discount rates, then perhaps it moves one more towards short duration stocks.
46:28And by that, I mean, and value companies. But then even with them, there are differences between them. So for example, one can think about companies linked to the commodity complex. So I mean, energy being the most obvious example, where the dividend streams are linked to some kind of exogenous real asset, I mean, albeit indirectly, the link is there, of those still.
46:49Demetri Kofinas:So I have a couple more questions before we move to the second hour, Inigo. Let's go back to diversification. So you argue in the paper that investors need to reconsider, and you did so in this interview as well, reconsider their definition of diversification, moving away from cross-asset correlation within the Markowitz framework toward one informed by different global conditions. So here we're really talking about risk versus uncertainty. What are those different conditions and how should the portfolio adjust accordingly? Yeah, so I guess a few things to unpick here. So firstly, we're putting less weight on simply diversification, we generate this correlation, partly because there's a risk that the last 20, 30 years has been this period that's been very special.
47:31And that is correlations we've observed over that period don't necessarily apply in the future. I think one particular thing from that that I would pick out above all others is the observation that up until 2022, the correlation of stock returns and bond returns was negative. And that's been somehow embedded into people's kind of thinking. I would argue that that shift since 22 to the correlation of asset classes being positive is firstly, a return to normality. So if you go back over the 200 years prior to the last 30 years, that correlation was positive most of the time. And secondly, that's more consistent with a world where we face inflation shocks, be it from climate or from deglobalization or from risk of debt monetization, which are not growth linked.
48:16And so I think there are reasons why those correlations which have been super helpful for investors and across asset class sense in recent years aren't there anymore. So I need to do something different. And the second aspect, which pulls us towards a slightly different process, is this idea of the uncertainty about the future. And again, I really want to stress, I don't want to just take the view that the future is always uncertain. There are a few things we can point to now, particularly AI, climate, geopolitics, and the breakdown of the rules-based order that mean we have some extreme divergence in future forecasts or where paths could take us.
48:52So one wants to build a portfolio that is robust across some different examples of those paths, and especially when we have a very poor ability to model what policy and growth looks like across them.
49:04Demetri Kofinas:Is this what you mean in the paper when you talk about the need to adopt a total portfolio approach that looks across public and private risks? It's linked to that. I mean, the total portfolio approach is a specific approach to constructing portfolios. It's become much more popular and talked about much more in recent years, although it's by no means new, certainly something we're talking to clients about, say a decade ago, but it's become much more popular recently. In essence, a total portfolio approach is thinking about risk in a holistic sense across the portfolio. So what that means is kind of denying the primacy of asset classes in the way you partition and allocate to risk in a portfolio and think more freely about that.
49:47So think in terms of the more fundamental factors that drive portfolios. And it leads to, you know, perhaps a more efficient way of allocating risk that I would argue is helpful in an environment where diversification is hard to achieve. Now, it's not for everyone because it requires a big shift in governance. And these kind of shifts in governance are things that should be done very humbly and slowly over time, particularly for large organizations. And some organizations have moved in this direction, but for organizations, it can be difficult to implement that kind of governance change. But this is an example of where a response to a slightly different kind of regime is helped by a total portfolio approach.
50:31Because you could think of, well, I want to build a portfolio that has return streams that can survive in a world where temperature increases, say, more than two degrees, and there's geopolitical change, and there's an unexpected shift in the way AI changes job creation, say.
50:49Demetri Kofinas:So, Indigo, I'm going to move us to the second hour. There are three categories of conversation that I would like to dissect. One is allocation, looking at equity, real estate gold, bond allocation. Also, what constitutes a risk-free asset or how does one manage risk in a world where bonds do not play that role consistently? I also want to discuss risks of wealth destruction, as I mentioned earlier in the conversation. What are the primary drivers of wealth destruction over time? How important is tax planning? What role do war and confiscation play in changing legal regimes? Also climate change, which you mentioned.
51:23Demetri Kofinas:And then I want to get into a broader macro discussion really about the current climate. And we can have a chance there to discuss equity, US equity versus US dollar exceptionalism, the effect of the fiscal picture on equities, the Fed and treasury credibility, and a number of other timely topics. For anyone new to the program, Hidden Forces is listener supported. We don't accept advertisers or commercial sponsors. The entire show is funded from top to bottom by listeners like you. If you want access to the second hour of today's conversation with Indigo, head over to hiddenforces.io slash subscribe and sign up to one of our three content tiers.
52:02Demetri Kofinas:All subscribers gain access to our premium feed so you can listen to the rest of today's conversation on your mobile device using your favorite podcast app, just like you're listening to this episode right now. In it go. Stick around. We're going to move the second hour of our conversation onto the premium feed. If you want to listen in on the rest of today's conversation, head over to hiddenforces.io slash subscribe and join our premium feed. If you want to join in on the conversation and become a member of the Hidden Forces Genius Community, you can also do that through our subscriber page. Today's episode was produced by me and edited by Castilianos Nicolaou.
52:40Demetri Kofinas:For more episodes, you can check out our website at hiddenforces.io. You can follow me on Twitter at Kofinas, and you can email me at info at hiddenforces.io. As always, thanks for listening. We'll see you next time.
From the publisher
In Episode 499 of Hidden Forces, Demetri Kofinas speaks with Inigo Fraser Jenkins, a strategist at AllianceBernstein and author of the research paper "The Hundred Year Portfolio," about how investors should rethinking portfolio construction, governance, and asset management across multigenerational time horizons in a world shaped by AI disruption, climate risk, the breakdown of the post-WWII rules-based order, and the greatest generational wealth transfer since before World War I.
The first hour covers the structural forces that made the post-1980 period of falling inflation and interest rates, negative stock-bond correlation, and strong real returns so exceptional, why recency bias remains the most dangerous assumption embedded in institutional portfolios, and how the convergence of AI, climate change, and geopolitical upheaval has widened the range of possible futures in ways that challenge conventional diversification frameworks. They also discuss the explosive growth of family offices and sovereign wealth funds, the erosion of the rule against perpetuities and the rise of dynasty trusts, why governance has primacy over allocation for ultra-long-horizon investors, why purchasing power preservation rather than benchmark-relative performance should anchor portfolio construction, and why diversification must shift from cross-asset correlation within the Markowitz framework to robustness across fundamentally different paths of the future.
The second hour examines the specific portfolio implications of a hundred-year mindset, including:
(1) Why equities should remain the core allocation, even in a lower-return environment
(2) The diversifying role played by private assets, including early stage venture
(3) Direct ownership of income-generating real estate, including farmland
(4) The case for a meaningful gold allocation as a zero-correlation hedge against inflation, fiscal instability, and systemic risk.
They also discuss the primary drivers of wealth destruction over time, from inflation and punitive tax regimes to confiscation and behavioral risk, before turning to the current macro landscape and the shift in Treasury ownership from price-insensitive central banks to price-sensitive funds and households, why US equity exceptionalism may prove more durable than dollar or bond exceptionalism, and the growing tension between global fiscal deterioration and the capital demands of the AI investment cycle.
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Episode Recorded on 09/16/2026
