For all my interviews and more, subscribe on YouTube. Better transcript! . . . TRANSCRIPT: Paul Krugman in Conversation with Jared Bernstein (recorded 8/20/26) Paul Krugman: Hi everyone. Paul Krugman talking with Jared Bernstein, former chief economist, head of the Council of Economic Advisers under Joe Biden. Now a policy fellow at the Stanford Institute for Economic Policy Research and at the Center for American Progress, which is in DC. Jared Bernstein: And I speak to you from Alexandria. Krugman: Yeah, and the reason I want to talk with you is, you know, there’s a lot of headlines now about debt. Interest rates, particularly at the long end, are way up. You and I have both been Substacking about it. I think we mostly are on the same wavelength, but I’d like to go back and forth, and I want to talk about some work that you’ve done, particularly with Bobby Kogan. But what’s your take right now? I mean, we had all these headlines about forty trillion dollars of debt. This is very different from the way we were talking about debt a few years ago, so what’s your take? Bernstein: Well, Paul, like you, for many years I was pushing back on those whose hair was on fire about the urgency of the federal debt. I thought that that overheating was overheated, and that as long as the growth rate surpassed the interest rate and we sort of kept our deficits within kind of a normal range, we could service our debt without breaking a sweat. But a few years ago, I began to become more hawkish and less dovish for a couple of reasons. One, the budget math became less favorable; the growth rate looked a lot closer to the interest rate, and that was before this recent bump up in bond yields. But also, you know, I’ve been in government a lot lately, and it looked to me like neither side really cared much at all. The reaction function, as we say these days, seemed to have been kind of dead in a way that I thought was problematic. Now, this is not a pox on both houses. And by the way, here’s an area where you and I may have slightly different views. The Republicans’ tax cuts—and Bobby and I have done a lot of work on this—are public enemy number one here. Exhibit A, in terms of why we’re in the mess we’re in. But you know, Democrats have largely endorsed those tax cuts and, in my view, have done some irresponsible stuff, too. So that’s kind of my first take. Krugman: Okay. You’re talking about r-g, but that’s kind of an important point, right? Why do we think about interest and growth and debt? Lots of people are out there saying, “Look, the interest on the debt is now so huge,” but that’s not quite the whole story, but it’s closer to the story. Anyway, your version of it... Bernstein: Yeah. For me, a lot of this comes from paying attention to Olivier Blanchard‘s work. He has kind of wedged into a lot of our heads this notion that when the growth rate surpasses the rate of interest, it is possible to keep rolling over that debt and not get into a kind of debt spiral because you’re generating enough growth and revenues and incomes to sustain the debt or to roll it over. Meaning, you know, replace some old debt with new debt without worrying about the debt getting on an unsustainable trajectory. As soon as r is bigger than g, that’s when you have the threat of a debt spiral. That’s not all the math. It depends on the size of your deficits as well. But broadly speaking, for many years we had pretty good growth and pretty low interest rates. We can talk about how that growth was distributed—a lot of it didn’t reach working-class people—but the fact that g, the growth rate, was higher than the interest rate was one reason why I was less wound up about all this. Krugman: Yeah, one of my favorite things is talking about the question of “How did we pay off the debt from World War II?” And the answer is we didn’t. The debt when John F. Kennedy was elected was about the same as it had been on V-J Day in dollar terms, but it was just vastly smaller as a share of the economy because we outgrew it. As long as debt doesn’t rise relative to GDP, it’s not a problem. That means if the economy is growing and interest rates are not too high, not only don’t you have to pay off the debt, you can actually keep it growing as long as it just doesn’t grow too fast, right? Bernstein: Exactly. So the problem we face is when our debt grows faster than our economy, when the debt ratio, or the debt-to-GDP, just keeps going up and up and up. Krugman: Basically for much of the period when everybody was going on and on about debt, the arithmetic there was actually pretty favorable, right? Bernstein: This is precisely why I kind of did a bit of a flip. I have an Op-ed in the Times—it’s from at least a year ago—where I managed to actually get them to put a graph in, which, you know, they don’t always do in there, which portrays this problem. It shows how the growth rate used to just reliably be well above the interest rate, where the economy grows faster than the debt, and so your debt-to-GDP ratio sort of glides along in a way that’s not particularly worrisome. But it looks like it’s starting to flip and starting to change. And then if you look at the CBO forecast, they actually have the interest rate on the debt falling below the growth rate numerous years out. And their estimates actually are kind of optimistic in debt terms because they assume a number of things: they assume tariffs continue to generate a bunch of revenue, which doesn’t look to be the case; they assume that some of the Trump tax cuts would fade, but now they’re permanent. So yeah, the budget math has gotten less comfortable. Krugman: Okay. I want to get to the interest rates in a minute, but the deficit that we’re running right now is just incredibly large. I mean, we used to run deficits to fight wars, and then we started to have big deficits when you had severe recessions. But now we have neither. I mean, there’s a war, but it’s not like World War II, right? It’s a fraction of a percent of GDP. Bernstein: Right, but it’s not free. Krugman: Yeah, but it’s not forty percent of GDP. It’s something like six percent of GDP now, right? Bernstein: Exactly. It’s a little north of six percent of GDP. And according to the kind of numbers that I run on this, with the macroeconomy doing pretty well—and again, I know it’s not reaching a lot of folks; affordability concerns loom large—but you know, GDP is growing around trend, which is about two percent real. The unemployment rate is close to four percent, which is in the neighborhood of full employment. And the stock market’s booming. We should have a deficit that’s closer to three percent than six percent. And what’s happened here, Paul—and you’ve written about this extensively—is that the constant ratcheting down of tax policy. All those tax cuts introduced by Republicans, too often kind of kept in place by Democrats, have really broken the linkage between solid economic growth and revenue flows to the Treasury. And what Bobby and I show is that if you take the Bush and the Trump tax cuts out of the mix, our fiscal scene would look fine. So, you know, that’s important. What you can do is simulate what the debt ratio would be—by debt ratio we mean debt-to-GDP—or what the deficit would be (either one), or what the interest payments on the deficit would be. You can simulate those if you take the Bush and the Trump tax cuts out of the system, which means taking them and not just the original cuts, but all the following-on legislation that made those cuts permanent. You know, when I say Democrats have played a role here: I was in the Obama administration when we essentially made permanent 80% of the Bush tax cuts. That’s not a hundred percent, so I’m glad that we let at least 20% at the top end revert back to what they were. But that’s the exercise we did. Krugman: The blue line in that chart is the projection for debt on the current trajectory, and up to the point where it gets dotted, it’s the actual debt-to-GDP. And it’s really three rounds, right? It’s Bush, which were very much tax cuts for the one percent; then Trump 1, more tax cuts for the one percent; and then Trump 2, even more tax cuts, not entirely for the one percent. Where we are now is not at all where we would be if we hadn’t had all of these tax cuts. Bernstein: Yeah, and let me say something about this. First of all, I know you do a lot of economic history, which is just really great work in my opinion, and I just don’t want our viewers to not note that that graph started back in, I think, the late 1700s. So that’s some pretty good economic history there. Remember, those figures, including the one that showed a much lower, much more sustainable debt path, include all the spending that is in the system. The only change we’re making is the tax cuts didn’t happen. And so this is important, because there are always going to be people who say, “You know, it’s all spending,” and “It’s all taxes,” and that’s a common fight. But that figure keeps the spending precisely where CBO says it is. So that’s not a judgment on whether we have the optimal amount of spending—we can argue about things that should be cut or expanded—but those are the numbers; those are the facts. Krugman: One of the things that strikes me about this is that often if we’re trying to understand what it would take to be able to pay for even what we have, that we would have to have something like European levels of taxation or something radically different. And actually, all we really need for that is Clinton-era levels of taxation. Bernstein: Precisely right. Yeah, in fact, under the Clinton regime was the last time we had an annual surplus, so the debt-to-GDP was starting to come down, which is