Kenneth Rogoff on Monetary Moves, Fiscal Gambits, and Classical Chess

Kenneth Rogoff — Harvard economist, former IMF chief economist, and co-author of This Time Is Different — joins Tyler Cowen in Ep. 241 to range across sovereign debt, the dollar’s dominance, China’s macro imbalances, the coming inflation adjustment, and his decades as a grandmaster-level chess player.

Key ideas

1. Trade deficits are not the problem — unsustainable debt is. Rogoff disagrees with Pettis and Oren Cass: a trade deficit (the gap between what a country buys from and sells to the rest of the world) is driven by savings and investment decisions, not a policy failure to be wrestled to the ground. What actually becomes unsustainable is debt, and the two are not the same thing. Putting tariffs on the whole world is largely self-cancelling: a 20 per cent tariff causes roughly a 10 per cent rise in the dollar, which makes exports more expensive and imports cheaper again, undoing most of the effect before retaliation.
2. The US fiscal path ends in inflation, not a clean adjustment. Rogoff expects US real interest rates to stay elevated — a reversion to historical norms after the post-crisis era of near-zero rates — and projects a cumulative inflation overshoot of 20–25 per cent above the 2 per cent target over the next five to seven years, driven by debt dynamics and political pressure on Federal Reserve independence (central bank autonomy). The cleanest escape scenario is an AI-driven productivity miracle so large that robot income pays the government’s bills; absent that, higher taxation looks more likely than spending cuts.
3. Japan is not a model — it is a warning. Japan avoided a visible crisis by using financial repression (forcing banks, pension funds, and insurers to hold government bonds at below-market rates, suppressing the cost of public debt but starving productive investment) and social cohesion. But its per capita GDP fell from 80 per cent of the US in 1990 to roughly 60 per cent today. Europe is now doing the same thing, and faces an existential fiscal squeeze as defence spending rises, demographics worsen, and real interest rates no longer sit near zero.
4. Phasing out large-denomination cash is overdue. Rogoff holds that most $100 bills and large-denomination notes worldwide sit in the underground economy — primarily facilitating tax evasion rather than drug dealing. Eliminating them is penny-wise for the government in print revenue and pound-foolish in forgone taxes. Stablecoins (private digital tokens pegged to a currency) face the same regulatory logic: they must eventually offer the same transaction transparency as bank accounts, or they become a digital substitute for the large-denomination bill.
5. Classical chess is worth defending, and computer prep is the real problem. Rogoff met Bobby Fischer at the 1969 US Junior Championship, drew Magnus Carlsen in 2012 speed chess, and remains committed to the classical format against the Fischer Random variant. His preferred fix for computer-dominated opening preparation is randomising the first few moves through a computer draw — forcing players to think rather than recite — while preserving the classical position types both he and Tyler Cowen find legible.

Content

The trade deficit, tariffs, and the dollar

Rogoff opens by rejecting the mercantilist framing behind current tariff debates. A country’s current account deficit — the broadest measure of what it owes the world — reflects domestic savings and investment rates, not industrial failure. When the US ran a very large deficit in 2005–07, Rogoff was worried, but because of poor financial regulation, not because deficits are inherently pathological.

On tariffs he is precise: a 20 per cent across-the-board tariff causes the dollar to appreciate by roughly 10 per cent, which makes US exports 10 per cent more expensive and returns the price of imported goods to a 10 per cent rise rather than 20. Retaliation cancels even that. Trying to target the exchange rate directly — whether through tariffs or intervention — is ‘a fool’s game.’ He dismisses the view that China’s currency is significantly overvalued: China runs a large absolute trade surplus, but at only 2 per cent of its GDP now versus 10 per cent in 2010, and the global picture is more ambiguous than a simple exchange-rate verdict.

Exchange rate theory itself remains unsolved. Rogoff’s first important paper, roughly 45 years ago, showed how hard exchange rates are to explain. Today he thinks much of short-run movement reflects financial frictions — bank balance-sheet constraints that prevent arbitrage — rather than any underlying economic signal. The policy implication: focus on inflation and output, not the rate itself.

China’s macro imbalances and the innovation problem

Investment has run at 40 per cent of Chinese GDP; consumption at roughly 50 per cent, compared to 70 per cent in the US. The savings-and-investment imbalance stems from structural gaps — thin pensions, no reliable old-age healthcare, the legacy of the one-child policy — rather than perverse preferences. The cure (more consumption, less investment) is straightforward in theory, but the mechanism to shift it is not, especially as house prices (where most Chinese wealth is held) are now falling.

More fundamentally, Rogoff argues that China’s rate of economy-wide innovation has ‘collapsed by many different measures.’ The Solow/Romer growth models (which say that long-run growth requires innovation, not just capital accumulation — adding machines faces diminishing returns) apply here: Russia and Japan both hit that wall. China has oppressed the private sector — the engine of innovation — particularly in the past decade, and restoring private agency is the precondition for a return to durable growth.

The US fiscal position and the coming inflation

Real interest rates — the rate of return on lending after stripping out expected inflation — have risen from the post-financial-crisis lows back towards their long-run historical average. That is the single most important macro change in the world, in Rogoff’s view. US debt-service costs have already doubled and are on course to exceed defence spending at $1 trillion. Models that tie the equilibrium real rate to population growth or productivity growth alone do not hold over longer time horizons; Rogoff’s recent American Economic Review paper makes that case empirically.

The political-economy logic he attributes in part to his late colleague Alberto Alesina: each governing coalition spends or cuts taxes knowing the other side will do the same when it takes power, so debt accumulates regardless of which party wins. The thesis of This Time Is Different — that people extrapolate from five or ten years of stability and assume the trend is permanent — applies equally to the assumption that inflation is dead and real interest rates will stay low.

Rogoff’s central scenario: another inflation wave in the next five to seven years, cumulatively 20–25 percentage points above the 2 per cent target (compared to roughly 10–12 points under Biden). After that first inflation, credibility is damaged; the second will be harder to contain. AI is the one scenario that genuinely changes the arithmetic — not by reducing debt, but by raising productivity and real incomes enough that transfers from robot income replace much of current fiscal need.

Pakistan, dollarisation, and Japan

On repeated IMF bailouts — Pakistan has had roughly 24 — Rogoff is candid: the loans are geopolitically motivated, the deep problems (military control of the economy) are not IMF-solvable, and most of the money will never be repaid. His actual recommendation is to switch from loans to grants and stop pretending.

On dollarisation (adopting another country’s currency outright, as El Salvador, Ecuador, and Panama have with the US dollar), Rogoff is cautiously sceptical. The benefit is permanent credibility; the cost is losing the ability to bail out your own banking system. Most bank money in a dollarised economy is still domestic credit, not physical dollars. Banking crises remain possible, and there is no lender of last resort. He thinks it is ‘doable’ but not necessarily advisable unless the alternative is sustained monetary chaos.

Japan’s story he reads as a slow-motion failure disguised by cohesion and financial repression. Per capita GDP peaked at over 100 per cent of the US in dollar terms in the early 1990s; it is now below 60 per cent. Years of stuffing government debt into pension systems, postal savings, and banks kept yields artificial and crowded out productive investment. Now, with real inflation returning, Japan faces the same choices it deferred for three decades: cutting pensions, raising taxes, or tolerating lower living standards.

Phasing out cash and regulating stablecoins

Rogoff’s 2016 book argued for eliminating large-denomination currency — the $100 and $50 bill — on the grounds that most of the stock is held for tax evasion rather than transactions, and that the government earns seigniorage (revenue from printing money) while forgoing the much larger sum in unpaid taxes. He is not calling for an end to all cash, and acknowledges civil-liberties concerns; the argument is about calibration.

Stablecoins raise the same issue. Used across borders — between a Cayman Islands account and an Estonian one — they are beyond the reach of US regulators in the same way that dollar accounts in foreign banks already are. Rogoff expects stablecoins to be regulated toward bank-like transaction transparency eventually. He is sceptical of a US central-bank digital currency (CBDC): the US is winning with the current rules, and a single technical failure in a unified digital currency system could paralyse everything. He would rather let Latvia or Singapore run the experiment first.

Chess: Fischer, Carlsen, and the classical format

Rogoff reached grandmaster level and competed internationally in the 1960s and 1970s. He met Bobby Fischer at the 1969 US Junior Championship; Fischer spent ten days analysing games with the juniors, showing a quality of imagination — move-four and move-five ideas that would not occur to others — that Rogoff traces less to calculation per se than to ‘fertile’ creative vision. He never played Fischer but did play, and was beaten by, the Yugoslav grandmaster Ljibojevic, who answered a ten-move variation Rogoff thought was his best with a fifteen-move refutation on the spot.

His draw with Magnus Carlsen in 2012 speed chess he attributes explicitly to the law of large numbers — a one-off result across a small sample — and to Carlsen making an overly aggressive mistake in a Breyer Ruy Lopez that handed Rogoff a winning advantage. He believes Carlsen would have won if he had continued rather than repeating moves.

On the future of chess: Rogoff is opposed to Fischer Random (Chess960), which scrambles the starting position of pieces to defeat computer preparation, because he cannot relate to the resulting positions. His preferred fix is randomising the first few moves through a computer draw — producing playable but unprepared positions within the classical framework — an idea Tyler Cowen proposes that Rogoff immediately endorses. He reads Magnus Carlsen’s distinction between calculators (Gukesh) and evaluators (Carlsen himself) as roughly matching Kasparov’s self-assessment: Kasparov was a fierce calculator early in his career but developed evaluative tools as he aged, while Karpov — his great rival — was naturally positional rather than combinatorial.

Related

• Kenneth Rogoff — guest; Harvard economist and This Time Is Different co-author
• Tyler Cowen — host
• Yasheng Huang on the Development of the Chinese State — complementary analysis of China’s political economy and institutional constraints on growth
• Dan Wang on What China and America Can Learn from Each Other — China’s industrial strengths and the US–China technology competition
• Jim Grant on the AI Bubble, Decadent Finance, and the Lessons of History — parallel concern with debt sustainability and the limits of easy money
• Andrew Ross Sorkin on Market Bubbles, Banking Rules, and the Real Lessons of 1929 — sovereign and financial system risk; lessons from debt crises past
• What Makes a Great Investor — Rogoff’s framework on real interest rates, debt cycles, and regime change speaks to long-run capital allocation