Governments face a trade-off between insuring bondholders and insuring taxpayers against output shocks. If they insure bondholders by manufacturing risk-free zero-beta debt, then they can only provide limited insurance to taxpayers. Taxpayers will pay more taxes in bad times regardless of...

Governments face a trade-off between insuring bondholders and taxpayers. If the government fully insures bondholders by manufacturing risk-free zero-beta debt, then it cannot also insure taxpayers against permanent macroeconomic shocks over long horizons. Instead, taxpayers will pay more in...

Governments around the world have gone on a massive fiscal expansion in response to the Covid crisis, increasing government debt to levels not seen in 75 years. How will this debt be repaid? What role do conventional and unconventional monetary policy play? We investigate debt sustainability in...

Governments face a trade-off between insuring bondholders and taxpayers. If the government decides to fully insure bondholders by manufacturing risk-free debt, then it cannot insure taxpayers against permanent macro-economic shocks over long horizons. Instead, taxpayers will pay more in taxes in...

The government budget constraint ties the market value of government debt to the expected present discounted value of fiscal surpluses. Bond investors fail to impose this no-arbitrage restriction in the U.S., resulting in a government debt valuation puzzle. Both cyclical and long-run dynamics of...

The government budget constraint ties the market value of government debt to the expected present discounted value of fiscal surpluses. Bond investors fail to impose this no-arbitrage restriction in the U.S., resulting in a government debt valuation puzzle. Both cyclical and long-run dynamics of...

The market value of outstanding federal government debt in the U.S. exceeds the expected present discounted value of current and future primary surpluses by a multiple of U.S. GDP. When the pricing kernel fits U.S. equity and Treasury prices and the government surpluses are consistent with U.S....