We characterize the relation between exchange rates and their macroeconomic fundamentals without committing to a specific model of preferences, endowment or menu of traded assets. When investors can trade home and foreign currency risk-free bonds, the exchange rate appreciates in states that are...

We build a model of the global financial cycle with one key ingredient: the demand for safe dollar assets. The model matches patterns of dollar borrowing and currency mismatch, the U.S. external balance sheet, low U.S. interest rates and exorbitant privilege, spillovers of the U.S. monetary...

Since 1980, foreign investors have timed their purchases and sales of U.S. Treasurys to yield particularly low returns. Their annual dollar-weighted returns, measured by IRRs, are around 3% lower than a buy-and-hold strategy over the same horizon. In comparison, the IRRs achieved by domestic...

We introduce safe asset demand for dollar-denominated bonds into a tractable incomplete-market model of exchange rates. The convenience yield on dollar bonds enters as a stochastic wedge in the Euler equations for exchange rate determination. This wedge reduces the pass-through from marginal...

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...

We use discounted cash flow analysis to measure a country's fiscal capacity. Crucially, the discount rate applied to projected cash flows includes a GDP risk premium. We apply our valuation method to the CBO's projections for the U.S. federal government's deficit between 2022 and 2051 and debt...

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....

If the U.S. is on a fiscally sustainable path, then higher U.S. government debt/output ratios should reliably predict higher future surpluses or lower real returns on Treasurys. In the post-war sample, we find no evidence for this. Neither future cash flows nor discount rates account for the...

We study three centuries of U.K. fiscal history. Before WW-I, when the U.K. dominated global bond markets, the U.K.'s government debt was not always fully backed by its future surpluses, even after accounting for the seigniorage revenue from convenience yields. As predicted by theories of safe...

China's rising presence in international finance, which has long lagged behind its prominence in international trade, is now reshaping global financial dynamics. Using a large sample of developing countries, this paper documents that countries more reliant on China's lending are less exposed to...