Financial Repression, Pt. 1 | Professor Hanno Lustig on Hidden Taxes, Fiscal Sustainability, and Japan’s Debt Puzzle

Japan’s staggering public debt—over 200% of GDP—has defied economic doom predictions for decades, not because of fiscal discipline, but through a sophisticated, decades-long experiment in financial repression. Professor Hanno Lustig reveals that Japan’s government hasn’t just borrowed cheaply; it’s run a massive, state-backed carry trade, funding itself at near-zero rates via the Bank of Japan’s bond-buying program, then investing those reserves in risky foreign equities, long-dated bonds, and currency positions. This strategy, which generated net returns of 6.25% of GDP annually, has kept the government’s net liabilities stable despite massive deficits. But this isn’t sustainable: as inflation rose and the Bank of Japan ended yield curve control, the system is now exposed to catastrophic risk. Rising rates and a strengthening yen could trigger massive losses on foreign investments, potentially making the government insolvent. The real cost? A regressive tax on ordinary Japanese savers—especially the young and financially unsophisticated—who’ve seen their savings erode in zero-interest deposits for decades. Lustig warns this model, now echoed in the U.S. and Europe during crises like COVID, is a dangerous illusion of fiscal freedom. Once the tools of financial repression are deployed, they become hard to exit, distorting markets, weakening accountability, and shifting the burden onto future generations.