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...

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...

We study equilibria in a heterogeneous-agent incomplete-market economy with nominal government debt and flexible prices. Unlike in representative agent economies, steady-state equilibria exist when the government runs persistent deficits, provided that the level of deficits is not too large. In...

Sovereign borrowing during inflation surges is a litmus test of a government's ability to withstand and navigate macroeconomic shocks. Based on transaction-level bond issuance data, we explore how sovereign financing strategies respond to inflation surges and how policy practices affect their...

We study how fiscal deficits are financed in environments with two key features: (i) nominal rigidity and (ii) a violation of Ricardian equivalence due to finite lives or liquidity constraints. In such environments, deficits contribute to their own financing via two channels: a boom in real...

This essay discusses the reasons for and implications of the decline in real interest rates around the world over the past several decades. It suggests that the decline in interest rates is largely explicable from trends in saving, growth, and markups. In this environment, greater government...