Conversations with Tyler - Kenneth Rogoff on Monetary Moves, Fiscal Gambits, and Classical Chess

Episode Date: April 30, 2025

Harvard economist Kenneth Rogoff approaches global finance with the same strategic foresight that made him a chess grandmaster. Author of the new book Our Dollar, Your Problem, Rogoff doesn't sugarcoat America's future: he foresees a significant inflation shock within a decade, far more severe than the post-COVID bout. When this second wave hits, he warns, "credibility's really going to be shot." In this conversation, Ken and Tyler tackle international economic dynamics, unresolved macro puzzles, the state of chess, and more, including whether trade deficits are truly unsustainable, why China's investment-heavy growth model has reached its limits, how currency depreciation neutralizes tariff effects, Pakistan's IMF bailouts, whether more Latin American countries should dollarize, Japan's deceptively peaceful economic decline, Europe's coming fiscal reckoning, how the US will eventually confront its ballooning debt, the puzzling absence of a recession during our recent disinflation, the potential of phasing out large denomination currency notes, the future relevance of stablecoins, whether America should start a CBDC, Argentina's chances under Milei, who will be the next dominant player in chess, hanging out with Bobby Fischer, drawing out against Magnus Carlsen, and how to save classical chess from excessive computer preparation. Read a full transcript enhanced with helpful links, or watch the full video. Recorded April 2nd, 2025. Help keep the show ad free by donating today! Other ways to connect Follow us on X and Instagram Follow Tyler on X Follow Kenneth on X Sign up for our newsletter Join our Discord Email us: [e-mail] Learn more about Conversations with Tyler and other Mercatus Center podcasts here.

Conversations with Tyler is produced by the Mercatus Center at George Mason University, bridging the gap between academic ideas and real-world problems. Learn more at Mercadis.org. For a full transcript of every conversation enhanced with helpful links, visit Conversationswithtyler.com. Hello, everyone, and welcome back to Conversations with Tyler. Today I am chatting with Kenneth Rogoff, who was one of America's best economists. He is a professor at Harvard, and he has a new book out called Our Dollar Your Problem

in Insiders' view of seven turbulent decades of global finance and the road ahead. Ken also having extensive experience in the IMF and dealing with various global crises. Ken, welcome. Thank you. A pleasure to be here, Tyler. Good to speak to you. Circa early 2025, the big debate is whether there's such a thing as an unsustainable international trade balance. So Orrin Cass says there is, Michael Pettis says there is, traditional theory is more skeptical or agnostic. What's your view? No, there's unsustainable debt.

There's not particularly an unsustainable trade deficit. I mean, there's good things about having a trade deficit, bad things, but it's a result of many factors. So, no, I wouldn't agree with Pettis on that. So what is the mistake he and Orrin Cass are making? Well, the trade balance depends a lot on your savings or your investment, these macroeconomic factors. If there's an underlying problem, and to be fair, when your trade deficit's really negative, there often is, you know, it could be something. I think in the case of the United States, when it hit a real peak in the 2005 to 2007, I thought there was a problem. I must say, I didn't know till very close to the event what was going on. We weren't regulating well. But, yeah, I mean, I didn't even know what their point is, to be honest. I mean, there's this mercantilist view. I want to collect all the gold in the world. You know, we want to be able to buy things.

Back in the day, you used to have to hire an army or Navy to help fight off, you know, invaders and such. But, you know, today that's not so true. So I think that's, the current account deficit, that's a broader measure of the deficit. It's important. And if it's really large, you can probably bet that it might go down. But it's not something to try to wrestle to the ground. There's an associated claim I hear, including from Martin Wealth, that China needs to substitute more into consumption to remedy some longer-term macroeconomic imbalance. Now, I can see that from a welfare point of view, the Chinese over-subsidized investment and might be better off consuming more. But is it going to boost their growth rate to consume more? Well, first of all, they subsidize investment like crazy. Of course.

I mean, so investment's been 40% of GDP. Consumption, they're different measures, but, you know, 50% of GDP, maybe were 70% of GDP by comparison. And it's been very embanky. balanced. It's for a command and control economy. And China's a hybrid economy. The central government plays a big role. Doing infrastructure investment, subsidizing real estate is easy to do. And they've been doing that for a long time. And their growth has been very imbalanced. So everybody's been telling them for years, why don't you build up your consumption? But it's been hard because they don't have medical care in your old age. They don't have Social Security in their old age.

They had this one child policy for a long time. So, you know, there are a lot of reasons everyone's had to say it. And now their house prices are plummeting. And that's for Chinese where a lot of their wealth is. So I would say it's not a bad idea to try a little bit of that, but they've dug a very deep hole. It's not easy to dig their way out. So putting aside the microeconomic,

distortions, which macro model do you use to think through the question of whether or not China should consume more? Do you use the solo model or Romer or something else? What's your god? Those are nice models, but I mean, let's be honest. I mean, they're just a piece of things. They do tell us that at the end of the day, you need to have innovation. If you're just growing by building more machines, by building more roads. You run into diminishing returns, and you get less and less with the output. That's what happened to Russia. That's what happened to Japan.

That's what happened to a lot of Asia. And for some reason, people thought that wouldn't happen to China. But their rate of innovation over the whole economy, I'm not talking about the highest level, has collapsed by many different measures. And the private sector is, of course, the root of all the innovation. they have oppressed the private sector, particularly in the last 10 years. And so, you know, for them to grow again, they need to restore some agency to the private sector. We're in the midst of some tariff debates right now, as you know. And one argument I hear, sometimes even from the anti-tariff people,

is that if the U.S. puts higher tariffs on China, while the Chinese currency just appreciates, the dollar strengthens, there isn't that much of a net effect. Because arguably, their property up their currency some amount now. Do you agree with that? Well, what you said is exactly right. I mean, so to a first approximation, if we put on a, I don't know, whatever it is, a 20% tariff, it has an effect on our exchange rate of making it go up, which makes our exports more expensive and makes their goods, less expensive. And, I mean, I don't know to get wonky, but if you did it on the whole world, you can get wonky. I can get wonky with you. Absolutely. Well, if you did a 20% tariff on the whole, it's not. I mean, I didn't get wonky. I

whole world, to a first approximation your exchange rate goes up 10%, the dollar. And so, you know, that rebalances everything. That brings the cost of their goods back to just a 10% rise. And it makes your exports 10% more expensive because the currency appreciated. So that's definitely in effect. Of course, they're probably going to retaliate and then, you know, that cancels it out. But do they want to retaliate? Don't they prefer the outcome or the tax approach is some kind of neutrality, given that they have an overvalued currency right now, they could have a decline, basically be insulated from the tariff, not have to worry about Trump so much anymore. Why should they retaliate? I mean, they have a lot of distortions in their economy,

but the days when it was very clear cut that they had an overvalued currency, I mean, are far gone. But it used to be undervalued, right? Those days are very far gone. So you're saying that their currency now is overvalued and they want to bring it down. They have all this producer price. They have all this producer price deflation, right? So they should be expansionary on the monetary side to have a more predictable path of nominal GDP growth. But they're not doing it. So probably their currency is a bit too high relative to an optimum.

Well, I mean, a logical way to do it would be to do more expansionary fiscal policy, more expansionary monetary policy. we don't really try to deal with producer price inflation through the exchange rate. I mean, exports and imports are important to China, but it's also a very big economy. There's a lot of stuff, you know, like the infrastructure investment and other investment that's internal. Sure, but if they had higher price inflation, the value of the Renminbi in real terms would fall somewhat, at least for a while, right? And that would be better, which means the current rate is somewhat higher than it ought to be. I mean, they're running a massive surplus to the rest of the world. The total size of their trade balance surplus is only 2% of GDP.

It's not like 10% the way it was in 2010, but they've gotten a lot bigger. It's still huge compared to the world. So, I mean, in crude measures of if their exchange rates overvalued and undervalued, I don't think you come to a simple answer. The dollar is very rich. I mean, so in a sense, everybody's, seems cheap to the dollar right now. I'm sure you've experienced that with your, anyone coming from abroad, even from Japan or Switzerland. Oh my gosh. It's so expensive here.

Feel free to give a wonky answer to this one. But why do you think it's been so hard for economics to develop a satisfactory theory of exchange rates? So purchasing power parity seems to hold only within very broadbands, something like 2x, and the rest just seems very murky. Why is that so difficult? Well, I mean, part of it is if you have floating exchange rates, there's a lot of financial factors that are hard to understand, that move it around a lot. We're not able to easily identify those factors, but I think more and more theory empirics is coalesced around, you know, things like bank balance sheets. So can banks arbitrage, exchange rates, and various pricing imperfections.

So I think the weight of research the past 10 or 15 years has been that the exchange rate moves a lot, but it's not slowly moving around the economy with it. And we've thought that for a long time. But I think the general view today, I mean, it isn't always true, but that a lot of the movements have to do with financial frictions and financial factors,

not some gnomes controlling the exchange rate, that there's a lot of random noise. Do you think we need a good theory of both real and nominal exchange rates to make reliable policy recommendations? If we don't really know what the exchange rate will be doing and why, doesn't that put us in the slightly odd position? That we're saying, do this, do that, but the most fundamental price variable is a mystery to us?

As you may know, I mean, I think my first important paper was showing how hard it was to explain exchange rates. I'm embarrassed to say it's about 45 years ago. And I think the policy conclusions people drew out of that is look at the exchange rate when you're, you know, trying to figure out what policy should be look at inflation rate, look at output. I think for some countries, they're so deep into dollar debt. They're so connected with the dollar and trade. They do worry about their exchange rate. So it sort of depends on if you're talking about a big country like the United States, or are you talking about New Zealand or something like that?

But I mean, I think generally policymakers need to recognize there's a lot of noise. So trying to target the exchange rate is a fool's game. And I'm at the Trump's administration's trying to do it. You know, they might get lucky, but, you know, it's pure luck. So if I take the country of Pakistan, I think it's now been through maybe 23 or 24 IMF bailouts. That's a lot. The problems aren't fixed. So we would all say here's ways Pakistan could improve.

Probably you and I would largely agree on those. But just from an external point of view, say you're dictator of the IMF. You're the managing director. You're the board. You're the staff. What is it you would actually do with Pakistan? I mean, that's, you know, the deep-seated problems, the military is very, very powerful in the country. The military is very corrupt, runs a lot of the businesses, has a lot of control.

So, I mean, it really runs deep into the institutions in the country. It's not something you can, like, air-lick some expert like you or I and just tell them what to do. I mean, believe me, there are a lot of very smart Pakistani economists who know what to do. But do you sign off on bailout number 25 when that comes along? You're in charge. I mean, first of all, if you don't sign off on bailout number 25, there, you're, you. going to default on bailout number 24. You're rolling over this debt all the time. And it's, you know, very sensitive politically. Pakistan's a country that's very, very geopolitically important.

So you can't look at the programs there as if you're lending to the UK. It's something very different. And the amounts are small compared to if you're lending to the UK. But yeah, it's, frankly, what I have advised on things like Pakistan is just give them aid. Don't give loans. You're never going to collect the loans. You're not seriously meeting their loans. And so it sounds great to say, well, we just lent the money to Pakistan. But I think in general, in money we're giving to developing countries, too much of it comes in the form of loans. And it distorts what we do because we don't get them all repaid. How many Latin and Caribbean economies should dollarize?

A few have, right? Should more? I mean, it's a pretty desperate measure when you dollarize, and there are different ways to dollarize. You know, when I just came into the International Monetary Fund in 2001, Argentina had dollarized, and they had been dollarized for 10 years, and I said, you know, isn't this great? But that was a peg. It wasn't real dollars, right?

I mean, like El Salvador, Ecuador, Ecuador, Panama. I mean, actually, you want to actually use the dollar, circulate the dollar. Because that's credible. And those of whether you like them or not, they've all stuck, right? I mean, you can do it. I mean, it has its costs. The biggest cost is if your banking system runs into trouble, you can't bail them out. So in most countries, the currency that we think of the physical currency,

it's just like a little piece of the animal. A lot of it, we, you know, you might not think of your checking account or your, you're, Savings account is dollars, but they are. That's a lot of the money supply. So when you say they're, you know, just using real dollars, they don't have real dollars to back those bank accounts. So it can work, but you run into banking crises, you run into debt crises. And then when you're dollarized, it's hard to fight it. So it's doable. It's absolutely doable. But I'm not sure necessarily it's advisable. It depends on the alternative. If the country's been run into the ground for 50 years and you're trying to reclaim territory, it makes sense.

Why isn't it easy for a lot of countries? Say your Barbados, that's a small country. Most of your visitors are from the U.S. also. Your banking system, you can just buy external insurance, right? There's an insurer that can cover the Barbados banking system, if need be. Buy it from China if you have to, and then just dollarize. Why aren't they just better off? Okay, I'm being naive, but is there an insurer who's going to bail out the Barbados' banking system?

I mean, I think our regulators would make that difficult. Their regulators would make it difficult. I mean, you would need to have something like that. And there's a lot of moral hazard. So you really, if you're going to be an insurer, you can't just insure. You have to have, you know, 150 people on shore looking at them all the time. I mean, that's not easy to do. The only country in the world, really, which can bail out its banking systems,

Hong Kong. They have enough dollar reserves to bail out everything. But that's the problem with dollarization is that it's, you know, if you're not going to have banks, it's great. But we want to have lending and mortgages and car loans and stuff. And, you know, it's very easy to run into trouble. Why did Japan never have a financial crisis? So a very high debt-to-GDP ratio. growth rate is mostly slow. In per capita terms, it's not as bad as it sounds at first, but nothing gangbusters. How have they held on? Well, they did have a financial crisis, the mother of all financial crises in the 90s.

Oh, sure, but since then. And since then. Well, have they hung on? In 1990 and even in the early 90s, their per capita GDP was 80% of the United States and purchasing power parity measures. trying to put into common price level. But in dollars, it was well over 100% of the U.S. Today, it's 60% in those measures. I mean, it is not held on in per capita terms. It has just, you know, not had growth for a long time. And they're running into trouble.

There's per capita growth in Japan. Maybe, I don't know. It's what. Yeah, but nothing like in the United States. I mean, we've been in every advanced economy, not just Japan. Oh, but you, yeah, that's fair, but they've fallen behind. France, the UK, Germany, they were ahead of all of them. They've fallen far behind. And they're in trouble now because they're finally having inflation. They're needing to raise interest rates. They've stuffed government debt into every orifice of the economy into the pension systems, into the banks, into their postal savings system. And now they're talking about cutting pensions, cutting old age benefits because suddenly they're having to make interest payments on the debt. And it's harder.

So I think people who use Japan as an example of everything's fine, you know, have their head in the sand. I mean, it's an example of if you're very rich, you can go down slowly, but it's not an example of how, you know, you can have fantastic economy with debt like that. But why do some places, say the much earlier UK, they have crises, and Japan, whatever the standard of living issues may be, right? There's no crisis. There's no run on anything. It's quite peaceful. It is a very, you know, society which obviously is a very high degree of cohesion, and that's a tremendous strength of Japan.

I just have a side mention if I can. I mean, I was a visitor at the Bank of Japan in the early 90s in the middle of their meltdown, although I didn't see it, and I don't think anyone did at the time. And I had to eat at the cafeteria every day, and that almost the same food that you had to eat. And it was good. But then I saw another line once, and I asked, can I go in that line? And the people said, oh, well, that's if you want a smaller portion. I mean, it's a very different society than we have.

but they have a lot of financial repression. Financial repression is going to be part of the solution in every advanced country where you force banks, insurance companies, pension funds to hold more. We've done that already. And they've done it in a big way. It's hurt their financial intermediation, so it makes lending less efficient. And that's, you know, part of why their growth has suffered. So they've done a good job doing a slow, becoming sclerotic slowly.

but I hardly think we would want to imitate them, especially if we intend to compete with China. Is that what the European Union is going to do, financial repression? They did it already. I mean... But they'll have to do it again. They still have all these major debt problems. Yeah, I mean, they did it big time after the European debt crisis.

So just a simple fact about that is it used to be that, say, Italian debt, was held in Germany, Spanish debt was held in Germany, spread all over. Now, the vast majority of the Italian banks are holding all the Italian bank done. Spanish banks are holding all the Spanish debt. Do you think that's because they're diversifying? No, it's because they're being ordered to do that. So they have a lot of financial oppression already. They don't have dynamic capital markets for a lot of reasons. And obviously, they need to remilitarize now. You know, Germany has a lot of fiscal space so they can go all out. But especially now that interest rates or real interest rates are hitting a higher level, they're going to have to do it. But I think

they're going to find they have to give things up in order to do it because the interest rates aren't zero anymore. So you think they'll actually cut spending, say in France? I mean, that's hard for me to leave. I don't disagree with you, but it somehow feels unimaginable to me. Yeah, I mean, many of the European countries actually tighten their pension systems a lot during the European crisis. They set it in place to take place 10 or 15 years later, not France. Yeah, I do. I think this is a real existential challenge to the French state.

I mean, maybe they'll take over as the capital of the world. maybe they'll, you know, find ways to solve their problems, but they've been free riding off the United States. There's no question about that. And now they have to spend more. I'm not praising Trump's policies. Let's not conflate those two things. But yes, I think they're going to find they're going to be, they have taxes are very, very high in Europe. In fact, so much so that there's no question it holds back a lot of investment. Europe has very few world beaters in terms of tech, finance. The biggest companies set aside the Danish company that's Ozambic. There are things like Hermes, you know, Prada, sort of lifestyle superpower stuff.

No, I think this is absolutely an existential crisis for Europe. It may lead to them becoming more cohesive. It may lead to them becoming more of a geopolitical power. but yes, they're going to have to make choices, which they haven't had to make. If the nation is Italy, and I think that the birth rate, TFR is about 1.3 on average, are they just going to wake up one morning and say the whole welfare state thing was a mistake and we're getting rid of it? I mean, isn't that the implication? Well, that's a kind of strong statement, and they're not going to do that.

But if the country keeps on shrinking, the age pyramid gets worse and worse. Yeah, we all face. We all face it. this issue and hope that innovation and growth or something will help. But yeah, I know the demographics is a problem in every country in Italy, as you say, is much far, far ahead of the United States on the demographics. I mean, an interesting fact is they spend a mind-numbing 15% of GDP on old age pensions and support now. I mean, we're half that. You know, all in. And 15% of GDP. And so, yeah, they, they, they have a lot of constraints. And their tax rates are very high. They, we, they're not corrupt like in Pakistan, but it's, you know,

it's not Sweden either. I mean, it's got a lot of problems. And just predictively, what do you think the United States will do with its fiscal position? That is a darn good question. I mean, looking way forward, I would just say we're on an unsustainable path. We will continue to have our debt balloon. And eventually, not necessarily in a planned or coherent way, I think we're going to have another big inflation soon. Next five to seven years, that's maybe sooner with what's going on. And that's going to bring it down, just like it did under Biden. It brought the debt down. But then the markets are, you know, fool me once, shame on you, you know, fool me twice. No, we're raising the interest rate. And then we'll have to, you know, make choices. I mean, I think in the United States,

a lot of the choices, I'd sorry to say it, probably point towards higher taxation because we're hardly running a welfare state. It's not all due respects, and I'm not sure I have any due respects to doge. They're not that many things to cut in the United States compared to many. other countries. So I don't know what the choice will be. I mean, I probably won't be here, and you might not be there when we're making the choices. But eventually we'll both be here. Well, it could be, it could happen much sooner. I mean, on the other hand, it's hard to know what's going through Trump's head. So I, you know, I presumed he was going to blow up the deficit like everybody else. We'll see. And when you say big inflation, how big is big?

Well, I think this time it'll be, so last time we probably had a bonus 10% inflation over the 2% target cumulatively, maybe 12%. I think this time it'll be on more on the order cumulatively over the 2% target 20%, 25%. I mean, there's going to be an adjustment. I don't think the debt is going to be the sole contribution to that. There are many factors. You have to impinge on Federal Reserve independence, probably there'll be some shock, you know, which will justify it. I don't know how it's going to play out. But I think I know that for years, people have said the U.S. debt is unsustainable. But it hasn't come to Roos because we've lived through this post-financial crisis, post-pandemic era of very, very low and negative real interest rates. That is not the norm. There's regression to mean. You know what? It's happened. And suddenly the interest payments start piling up. I think they've gone, at least doubled over the last few years. They're on quickly on their way to tripling, going up to a trillion dollars. And so suddenly, it's more than our defense spending. That's the most important

macro change in the world that real interest rates appear to have regressed more towards long-term trend. What's the most plausible scenario you can imagine where the U.S. does not have to make any major adjustment? I'm not saying you're predicting it. I'm not saying you think it's very plausible, but you have to come up with something. What is it? Oh, I don't know. There's any question. It's that the AI revolution turns out to, you know, just work magically much better than we, you know, anyone imagine that people like me quietly acquiesce to just getting transfers from the government instead of having jobs and we just, you know, continue to have a high income and the robot income pays for everything. I mean, but AI is absolutely the thing, which is most likely, you know,

some kind of technological change. You know, other than that, the problem's in our politics. It's in our DNA. We're convinced that, you know, we're immortal's and we can just do whatever we want. That's, you go around Washington and whatever they say, I think that's what they think. And again, this key thing is that real interest rates, the interest rate adjusted for expected inflation. And I'm looking at the long term. They've come up and they're not super high, but they're more like they were in the early 2000s. And I think a reasonable projections they're going to stay around the level I are now. I'm sure you know the classic Paul Samuelson paper on overlapping generations model,

and in that paper the real interest rate is equal to the rate of population growth. There's other papers where the real interest rate is in broad harmony with the rate of productivity growth. If either of those models are correct, aren't we okay again? Well, first of all, if it's population growth and productivity alone, then you're losing tax dollars at the same time you're paying less interest. But it turns out those variables don't work so well over a longer period. I have a paper in the American Economic Review just last August about this. You look over longer time periods, you know, just because economists think that those

should be the dominant variables, it doesn't turn out to work that well. And all this stuff, there have been a lot of papers by economists looking at the decline. It's going the real interest rate, going down, demographics going down, productivity going down, looks great. Because you look at a longer period. There's no there there. I mean, it just doesn't stand up. So I think there are other factors having to do with liquidity, default risk, changing nature of the production function globalization.

You know, I think there are many variables where assuming there's going to be some reversion to mean is just a pretty good thing to have in the back of your head. head, you know, you know Carmen Reinhardt and I had this book this time is different, very much on the theme of people just looking at five years or 10 years and they, oh, it's just great. It's just going to go like this. And I think the real interest rates, an example. I would say the low inflation. It's another example. My students, for a long time, just didn't believe their defer be inflation again. I would teach it. They would fall asleep. I mean, I remember asking a question even to someone who was a search assistant at a big central bank, explain this to me about inflation. And she said,

my generation doesn't ever expect to think about inflation. We don't have it. I mean, he's going to be examples of this. So, no, I would suspect we will have high religious. And by the way, AI will raise the interest rate. But productivity too. That's the case where it goes up with productivity. It does raise productivity, but the usual thing about demographics is there are less people to work with the machines and therefore the return on the machines is lower and the interest rate goes down. But if the people are being substituted for, which is new, I mean, we've always found a way to reinsert ourselves. You won't necessarily even in a theoretical model like Samuelsons or Solos get that effect.

You wrote a famous 1987 paper on political business cycle theory. How relevant do you think political business cycles have been since then? Well, there have been a lot of papers on it. I mean, I think there's any question. Every politician in the world, if they have the power, tries to goose up the economy before it happens, I think empirically, it's overwhelming that it's true. The question is, why does it fool anyone?

Everybody should understand why that's going on. And without going to tell us that paper was about the paradox that I know you're just making things look good. I know you're hiding something from me so that, you know, you're exaggerating how long this can go on, how much is costing. But I'm going to vote for you anyway. And so, you know, that's what that paper was. It looked at it as a signaling model. That's getting really wonky.

But the fiscal versions of political business cycle theory, they don't have to fool anyone, right? You do get the money and society as a whole has to pay it. back, but you can come out ahead. Okay, so there's another, I'm going to just translate it a little bit from my model, one that Alberto Alicina, my late colleague, Alberto Alicina did, and a number of others, that said part of the reason debt keeps piling up is we have, you know, the liberal party, the conservative party. When the liberal parties in power, they know that debt is bad, but they know they can

spend now, and they know they might not control it in the future, so they spend a lot and they borrow. When the conservatives are in power, they cut taxes and build up the debt. I think that's a very powerful, very, very powerful theory of part of why debt bills up is whoever's in power, you know, says, don't pay any attention to it. And of course, you know, I think we end up where we are now. In an earlier book, you called for the phasing out of currency in large denominations, bills. Do you still want to do this? Oh, I call out for phasing most currency. I'm not phasing it all out right away. That takes, you know, generation. Well, Sweden's done it. I mean, it doesn't take that long if people are on board. It's very hard to run across currency in Sweden today.

You're right. And they didn't even pass laws. You're right. You have to travel 150 kilometers to get to an ATM machine. But it's not completely phased out by any means. I mean, it's still there. So, first of all, we've had enough inflation that the $100 bill is now a $75 bill, I'll say, to start with. But, you know, most of the world's currencies held in these large denomination notes. I mean, I've done further work. Very little of it's used in transactions. I think most of it is in the underground economy. It's used. It's not necessarily nefarious. There's drug dealing, human smuggling and everything, human trafficking. But I think the large majority of it is tax evasion. I mean, lots of people do that. Okay, I mean, I'm not trying to be holier than thou

and, you know, just say everybody who does that as evil. But I'm looking at from the government's point of view, making money by saying, hey, people love these $100 bills and not figuring out that they're using them not to pay taxes. I've argued that that's penny-wise and pound foolish. And yeah, that's sort of the core of the argument. But from an efficiency point of view, don't you want a kind of price discrimination in your tax system? So say people pay their nannies with $100 bills. They wouldn't hire the nanny if they had to pay taxes. Furthermore, if the transaction were recorded, they'd have to worry about social security issues. It's a lot of paperwork and bureaucracy, very forbidding for a lot of people.

and you're just lowering output by not making it easy for them to pay the nanny with cash. So I do think about that, but the questions why we need $100 bills for that, I mean, you can pay your nanny with 20s and they'll be perfectly happy because actually the $100 bills are harder to work with, you know, for them. So, no, I think you want to have ways that you can evade the law up to a point. I mean, marijuana is now legal in most places, and maybe the whole culture and society wouldn't have evolved if we didn't have a cash economy, you know, that could pay for that. So, again, you know, I think it's a question of calibration, regulation, you know, where you want to put things. Do you worry about the example of the Canadian truckers where it becomes too easy to cut off people's bank accounts and there's too much social power over a lot of people? Well, again, I'm getting rid of the large denomination notes and not straightforwardly the others.

And so, yeah, no, we don't want to over, I absolutely agree there's government accesses, the questions, you know, do we have, you know, we have, we have drugs that, you know, help people after an operation, but it, and we want to have them, but does it want to mean, mean we want to have them freely floating in the economy? me. And also, we can phase out $100 bills and $50 bills and we can change our mind later, you know, and decide that we overdid it. I don't think we would. I think, you know, continue to go in that direction. But it's a matter of costs and benefits. Do we also have to ban stable coins then? Because you can make $100, $500 transaction in stable coins. And not everyone's used to doing that now, but you figure within two years your AI can do it for you, if need be. And we're just pushing more people into stablecoins. Well, absolutely.

So in the same book, I said we need to regulate cryptocurrencies. And there are different kinds of stable coins. And it's not clear where it's ending up in the long run. But I think stable coins eventually have to have some kind of parallel revealability to what bank accounts have, not necessarily exactly the same. But no, that's where we're headed. I think the regulators are pretty favorable to, stable coins actually on the whole, but not if they're, you know, being used to evade taxes and all kinds

of regulations. But the issuers can be abroad. In that sense, it's quite different from domestic banks, from currency. Someone has a stable coin account, you know, and the Cayman Islands, and they make a transaction with someone with a stable coin account in Estonia. How much say do the U.S. regulators really have over that? We don't have much say over that. I mean, we do now with bank. You already have that the case to some extent with bank accounts. And you can mitigate the problem. You can't eliminate it. I mean, that's generally true of cryptocurrency. You can, you know, try to, try to regulate it. You can't completely eliminate it. I mean, probably a lot of sanctions evasion is being done with stable coins in cryptocurrency. And clearly, we have not been able to touch that.

Should the U.S. issue, you know, a CBDC, a digital coin? Let me put it this way. I don't think we should be the first to try this. Right now, we're on top. I mean, I kind of think we peat, but that's another question. We're winning. Why do you want to change the rules of the game when we're winning? Because it's not about the currency. It's about treasury bills. It's about the interest payment. It's about market clearing. And also, we're so big, we probably are more likely headed towards having competitive stable coins. which are regulated, which have some kind of lender of last resort, than a CBDC. I'm skeptical of that. And, you know, you put yourself in a position where one screw up, you know, can paralyze everything. And it wouldn't be good if we had five stable coins and one of them had a problem. But I tend to think that's something for, you know, Latvia or Singapore to try and not

necessarily the U.S. Maybe in 50 years. to be fair of Europe's talking about it, but they're talking about what we call a wholesale CBDC, which is among the banks, and that's a completely different animal. A standard macro puzzle today. We had a disinflation from post-COVID inflation.

It went from 8.9% to something not too far from 3%. And there's no big recession. How do you interpret that? Were the rational expectations people right that it was credible and we just did it? Or the people who say it was all supply shocks, Are they right? It's a big puzzle to me. What do you think?

Well, I think it is a big puzzle. It's the first thing to say. I mean, I'm not going to claim I thought that was going to be painless, bringing the inflation rate down. I don't think I was out there quite at the Larry Summers level, banging on the table, you know, saying that there had to be a big recession. I certainly do not buy the ID as all supply shocks. That's just nonsense.

So there are these people who say, oh, it was just the supply chain. The shipping lanes were closed. and all that stuff. And as soon as the supply chains were back, inflation was down. Excuse me, the supply chain problems make the price go up. When they go away, the price should come down. It did not. And so there clearly was, you know, even in countries which didn't do as much macro stimulus as we did, they did a lot. And they all, of course, kept their monetary policy easy. But, yeah, I mean, the credibility is remarkable. It's remarkable. I mean, if you look at inflation expectations, they moved a little bit.

I mean, I'm talking about the professional, the consumer ones moved a little more. But consider what just happened that inflation expectations didn't move more. It's remarkable. And to come back to the earlier point about solving our debt, if we ever have an inflation, I don't think that's going to happen again when we have a second inflation. That time the credibility is really going to be shot. What else do you think of as an unresolved puzzle in macro besides the disinflation? Boy, that's a really good thing because I think about research questions all the time.

It's certainly been very surprising to me of how much bank regulation has created all these arbitrage issues across things that didn't exist. Like, I'm not sure this is completely unresolved, but, you know, when I was doing my book with Mori Avsfeld, We thought of what we call covered interest parity as just, you know, something that holds like, you know, law. In other words, if you borrow in one country and you borrow in another country but do some kind of forward contract undo it, you get the same interest. It's not true anymore. And I think there's just a range of these puzzles that have come up since the crisis. I suppose another one would be, you know, what kind of influence. inflation rate do we really want to have? There's a lot of debate about that. There are people who say it shouldn't be 2%, it should be 4%. Some people it should be 0%. I think that's a big question.

Do you have any guess on the covered interest parity issue? Because that bugs me all the time. Do you think it's an institutional friction or there's some kind of unmeasured risk that we're not seeing or picking up or something else? I mean, it seems to be that the banks are prevented from undoing it, that we have. have some of these regulations, for example, that just restrict the size of your balance sheet. And the banks used to just be able to freely borrow and lend and undo things. So you'd borrow in one currency, lend in the other currency, and that's how you'd undo it. But there's just been a range of puzzles like that. And of course, the biggest puzzle is productivity. Like if I go to a country like the UK, how do we get productivity?

and exchange rates are still a puzzle. I mean, you asked a question about it before, but we don't have a good, you know, fully satisfactory explanation of them. You'll be doing a book tour in the UK soon. Why has their growth or productivity growth been so slow? Again, we all might admit this is a puzzle, but it surprised me.

They have plenty of science. They have some great universities. They played a key role in developing vaccines, other innovations, and they seem entirely stuck. Well, I mean, it's been a generalized problem in Europe, although you think they'd been doing better. I think part of it is this sucking sound of the United States

with the brain drain that we have. You and I both know about Deep Mind. British company, you know, ends up in California, and I think there are many examples like that where when something goes well, the U.S. sucks them off. probably they have this profound problem of the North and the South. The South is rich and the North is poor, and they just have not been able to figure that out.

If you go to London, they're doing great, and they're still doing great. But they've had trouble finding jobs that the manufacturing jobs are going. They haven't figured out how to substitute for them. The U.S. is at the Tech Revolution. I mean, if you took that away, we don't look so bad. good anymore. A lot of countries don't seem to have a sucking sound problem, though. So the talented people in Northern UK go to Southern UK, but you look at Germany, the Netherlands, you don't see the same thing happening in those places. Is it because London is so good that the country as a whole

grows more slowly? Is that a kind of curse for the aggregate number? You know, it's still the case that those countries have hardly been models of dynamism, Germany and the Netherlands. You're right, they've been able to keep people more, partly because they're not English speaking. But again, a lot of the difference in how we've done is our tech sector, that's been a lot of the innovation going through the economy. And I don't want to sound like I'm drunk with what's going on with their tech sector and how it affects other things. But if you took that away, our numbers would look like theirs. Is Malay going to make it succeed in Argentina? What does it depend upon? Well, I hope so. I think he's the best chance that Argentina's had in a long time, which is fair to say, a very low bar.

The thing that he's done that I have not seen before is balancing the budget. If you're a big borrower and you keep defaulting, sort of a starting point is figuring out how not to have to borrow money, he's man. He's managed to do that. I mean, I don't know that all his libertarian visions necessarily will come to pass. You know, he's provided some stability bringing inflation down. I mean, it's so, Argentina, as you know, was one of the richest countries in the world by any measure at the turn of the 20th century, you know, in 1900. Now, they're lower middle income country. They're per capita incomes below Brazil, which is hard to get your head wrapped around. So, I mean, I think there are many reasons, but certainly, you know,

perinism, socialism has not done well by Argentina. But has he balanced the budget? I know he announced a balanced budget, but this is April 2025, and they just borrowed $20 million from the IMF. It doesn't sound like a very balanced budget. Well, I mean, it's counting the interest payments on the IMF. And, yeah, I mean, he inherited this big debt. They're paying the interest.

It's very low interest on the big debt. And I don't know how that's ultimately going to get resolved. I mean, they have a lot of problems ahead. But, you know, there's a lot of strengths in Argentina. If they can grow again, I don't want to sound, you know, Panglossian about Argentina. But goodness, they had inflation of 200% when he took over. The economy was in freefall.

So, look, you know, there's no magic wand you can wave over. the last 80, 90 years of Argentina and make everything right. Okay, some chess questions. Once a grandmaster, always a grandmaster. So you can't just say you don't know. Is Dukesh the next dominant chess player? Or will he be first among he equals? Well, he's not even nearly first now, even among, you know, others.

I mean, there's a number of Indian players who were very good. I wouldn't put him ahead of Nakamura or Karawana, much less Carlson. But he's ambitious, he's talented. I wish him the best. I mean, it's wonderful that he won. But, I mean, he's got a long ways to go to be Casparov, Fisher, Carlson. It'd be fabulous for chess if he does that. I don't see it yet.

Do you? Well, Nakamura, Karwana, in five years, they'll be out of the scene, maybe before then. Carlson is already, in a sense, out of the scene. I think he has a 30 or 40 percent chance of being not a truly dominant player, but say the way Anand or Kromnik were at their peak, you know, one of the top two or three very consistently and world champion for some number of cycles. Not the way Kasparov was, but something quite impressive.

I'm close to him. Well, it would be fantastic. Yeah, yeah. Okay, I thought you were asking a different question. No, the next, not the current dominant, but is he the next dominant? No, he could absolutely, I mean, Anand and Kramnik were amazing, and he could absolutely do that. I mean, he's close to having done it if he met, he'll have a much more difficult challenger next time, I would suspect.

I mean, Ding is an Uber talent, the person he beat, but clearly had all sorts of mental problems in the match. I mean, he's been depressed and you could see him sort of losing it in some games. What were your impressions with Bobby Fisher when you met him? Well, I mean, he was amazing. First of all, when I met him, he, he, he came every day to the 1969 U.S. Junior Championship over 10 days, and he sat and he analyzed with us. And the first thing was just thought, what's he doing with us? Why is he wasting his time with us? We just thought he was so generous.

But obviously, you know, his absolute intensity, his commitment, I don't know if you remember, it's hard to imagine. But he actually used to be weak at rook endings, weak for somebody like that. Yes. So he locked himself in a room for three months and did nothing but study rook endings and got to be very good. He got a hotel, he told us about it, got a hotel room, you know, with no, no view. And then, you know, certainly some of the ideas he showed, I still think about it. I won a game and he went over it with me against Steve Spencer. It was the last game of the tournament, which I won.

And he showed me his ideas. I hadn't thought of any of them. You know, it was just his fertile, I don't know if they were better, to be completely honest, than what I played. I mean, of course he's much better than me. But, I mean, just the imagination of there was this. And we're talking about on move four, on move five,

of just things that wouldn't occur to me. And part of the Fisher legend was that, at least supposedly, he was the greatest over-the-board analyst of any chess player. Well, Gary Kasparov was. and do fool and same as Carlson. I mean, I don't know, but he was, he was a staff, he was way above everybody in his generation. He did not have the prep that the Russians had. He worked on his own. He was not working with a team. The Russians had all this communication and coaches and everything. And by the way, you know, I was representing the U.S. and the World Junior Championships and things like that.

It was a big disadvantage that you didn't have a train or a coach, you know, organizing information. Fisher was doing that at the highest level. So he must have been by far the best over-the-board player then. But not the player. I mean, just someone, if you would sit down with them at the board and show them your game, the claim I've heard is that Fisher was a more astute analyst, even than Kasparov. Kasparov might have been the better player. But just willing to put his entire mental energy into over-the-theworthy.

the board analysis sitting there. I think that's part of the Fisher legend. I mean, it's part of the legend. I mean, he was amazing. I played against really all the top players then, with the exception of Spaski. And, you know, they were all phenomenal, but they weren't all equally good calculators. So the best calculator I ever played was actually a Yugoslav player reached second or third named Lubyevich. And he beat me, I don't know, I was 16 years old. And he, to try to salvage some ego, I said, well, what did you, what if I did this? What were you going to do? And I showed him my best. I thought it was just like a great variation. I don't remember how long, 10 moves. And he goes, mm-hmm, mm-hmm. Yeah, but then I do this. Actually, it's this. And he goes,

something 15 moves. I never played Fisher. He wrote an article about me once, as you know, but I never played him. But of course, I could well imagine it would be the same. But I'm not sure I could tell the difference with Kasparov, Carlson, you know, at that level. When Magnus spoke with Lex Friedman, he drew a distinction between players who were incredible calculators. He called Goukesh one of those and players who were incredible with evaluation. And he called himself one of those. He thinks he's actually not the best calculator.

Do you broadly agree with that distinction? Well, I think it's an interesting question. It's funny because I've seen him write about Karpov, who I did play, and he said, I don't know how Carpuff does it. He just knows where to put the pieces. He just knows where everything goes. And he's not having to calculate like I do. And between his great nemesis was Carpac. And between the two of them, he was the calculator. And Carpaw was no slouch. But Casparov was better. I think maybe as Gary gets older, you know, I mean, your comparative advantage as a calculator is probably at your peak at a younger age. And Gary, you know, developed other tools.

But I mean, he was really good at both. So I, but I would have put Casper up as a calculator, like a fierce calculator. Now, you must have been out of practice, but I believe you drew Magnus in a game of speed chess in 2012. Is that the correct year? Yeah, it really, it really happened. How did it happen? What's the story? Well, sort of what I tell people is if you were a professional golfer once and you play three holes with some.

somebody, anything can happen, you know, the law of large numbers. But, you know, going more into it, he let me have white. We played a Rui Lopez, Spanish opening, which he had been playing all the time. He played a variation. I looked, I hadn't prepared. I mean, it's just what he was playing all the time. Did he play the briar like he used to do? He played the briar. No, that's right. He played the briar. And I didn't, I didn't even know that he played it at the time. I mean, he played a lot of things. I didn't know he was playing that. And, you know, so I knew where the pieces go. I didn't, I mean, I knew what I was trying to do and where the pieces go. And at one point, he, you know, he made an overly aggressive move that just was a big mistake.

And I saw it. And I got a winning advantage. It wasn't an easy winning advantage. I'm convinced that if he had continued the game, he would have won. But at some point, he had a choice of repeating moves. And he was losing. And so, you know, he just repeated moves. I'm not saying I would have won. I think I would have lost if he kept playing. But it just happened. If I did it 10,000, 20,000 times more, I don't think it would happen. What do you think of Fisherrandom is the future of chess?

Because that seems to be what Magnus wants. I don't like it, frankly, but what's your opinion? I'm with you, Tyler. I mean, I take joy from classical chess. I love watching a beautiful classical chess game. I can relate to it. You know, I mean, I'm hardwired to think about it. And Fisher Random Chess, I mean, it's a little bit like looking at problems.

I respect chess problems, but the positions are often weird and improbable. I just have trouble relating to Fisher Random Chess. I hope I change. I'm just speaking from my age, but I'm so invested in classical chess. I love classical chess. I think about classical chess all the time. I don't know. why don't you like it?

With classical chess, not every game, but most games I feel I can look at the board and have a decent idea what's going on. And I might be wrong, but even then I can figure out exposed why I was wrong. With Fisherrandom, I don't have that sense unless it evolves back into a classical looking-like position. So from a spectator's point of view, why should I care?

That's how I would put it. Yeah, I mean, we're on the same page on that, But on the other hand, you mentioned Goukesh, and the computers have just dominate the preparation. That's why Carlson stopped. He didn't want to spend all the time. Yeah, how are we going to solve that problem then? If we don't do Fisher Random, what is your proposed solution?

Because I have one. I'll tell you mine, but you tell me yours. Tell me yours. That we randomize the first few moves of the opening, so some percentage of games through computer randomization would be like 1B4, 1B6, and then they start playing. But you do that with many permutations. They're all playable positions.

As you well know, no Grandmaster game would go 1B4, 1B6. But there's no reason why you can't play from that position. And if you have 500 opening alternatives like that that the players don't control, I just don't think they can, you know, prep that much, the Berlin, the Marshall, the whatever, all these four straws. I think they actually have to play chess. I love that idea. And yeah, it creates some randomness and what initial positions you get.

But I love that idea. I mean, that sounds much better to know. me, I would much, you know, I have to say as a player, I played like that because I was very isolated in the United States. I wasn't following all the opening innovations. So I played all kinds of openings to be unpredictable. But if everyone does it, it's easier to do. It's like every game is between two Ken Regens, is one way to put it. Yeah, no, no, I like your idea. I think it's a great idea. I endorse it. Thank you. Final question for you, for our listeners. Your book's coming out.

It's on very important issues of currencies, international trade, international finance. It draws upon a lifetime of your learning and practice and advising. What is it you think you'll do next? Well, I have a lot, you know, like any academic, I already have my next few years of projects. Some of them, frankly, you know, grow out of the book. I think people forgotten about political economy. They just think, you know, if the central bank says the inflation rate, It's 2%. On average, it'll be 2%, and we go home. And I worked on that early in my life. I wrote

the first paper on why you should have an independent central bank. And I'm working on it again, admittedly with some very talented young people, including Marina Halleck at Yale and Pierre Yarrett, who's at Columbia, but now actually on the Council of Economic Advisers. And just thinking that, no, the political pressures are important. So that's an important topic. I'm also working on China as an area I've been working on for a long time. So I have some thoughts about comparing China and Japan, for example. But I have a lot of things I'm excited about. Part of what was so great about the book is I would describe a mini renaissance in my research.

And I'm able, at least I feel that way. I mean, I don't know if the rest of the world thinks that. But it gives me joy sort of to have some confidence about, you know, some of the ideas, although, as you say, there's much more to it. Again, everyone, Ken's new and excellent book is Our Dollar Your Problem. Ken Rogoff, thank you very much. Thank you. Thanks for listening to Conversations with Tyler.

You can subscribe to the show on Apple Podcasts, Spotify, or your favorite podcast app. If you like this podcast, please consider giving us a rating and leaving a review. This helps other listeners find the show. On Twitter, I'm at Tyler Cowan, and the show is at Cowan Convows. Until next time, please keep listening and learning.