In a deterministic overlapping-generations economy with production and physical capital, the price of debt can be positive without any budget surpluses being in the offing, because debt incorporates a rational bubble. Yet the dynamics of debt remain a function of the dynamics of the primary...

Any fiscal path is sustainable if future fiscal policy responds sufficiently to high deficits. Previous work found that Congress reduced the deficit during 1984-2003 when projected deficits rose. We find that this year-to-year feedback has disappeared: Congress on average during 2004-2024 did...

Standard deficit accounting neglects the growth dividend: the amount by which annual GDP growth shrinks the debt-GDP ratio. America's growth dividend has more than doubled since the Great Recession because the debt ratio has more than doubled, leading to headline deficits that far exceed changes...

Financial repression can be used to avoid a government default when fiscal policy is constrained. We present a model showing that optimal financial repression progresses through successive stages with increasing levels of distortion. Data from advanced economies suggest that the initial stage of...

In HANK models, fiscal deficits drive aggregate demand and thus inflation because households are non-Ricardian; in the Fiscal Theory of the Price Level (FTPL), they instead do so via equilibrium selection. Because of this difference, the mapping from deficits to inflation in HANK is robust to...

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...

The price of a safe asset reflects not only the expected discounted future cash flows but also future service flows, since retrading allows partial insurance of idiosyncratic risk in an incomplete markets setting. This lowers the issuers' interest burden and allows the government to run a...

This paper proposes a tractable framework to analyze fiscal space and the dynamics of government debt, with a possibly binding zero lower bound (ZLB) constraint. Without the ZLB, a greater primary deficit unambiguously raises debt. However, debt need not explode: When R G - φ, where φ is the...