A key precursor of twentieth-century financial crises in emerging and advanced economies alike was the rapid buildup of leverage. Those emerging economies that avoided leverage booms during the 2000s also were most likely to avoid the worst effects of the twenty-first century's first global...

We show that welfare can be lower under complete financial markets than under autarky in a monetary union with home bias, sticky prices, and asymmetric shocks. Such a monetary union is a second- best environment in which the structure of financial markets affects risk-sharing but also shapes the...

I use a novel loan-level dataset covering lending by official creditors to developing country governments to construct an instrument for government spending. Loans from official creditors typically finance multiyear public spending projects, with disbursements linked to the stages of project...

We review the events that led to the May 2010 and July 2011 bailout agreements. We interpret the bailouts as outcomes of political-economy equilibria. We argue that these equilibria were likely not on the Pareto frontier, and sketch political-economy arguments for why collective policymaking in...

A main puzzle in the sovereign debt literature is that defaults have only minor effects on subsequent borrowing costs and access to credit. This paper comes to a different conclusion. We construct the first complete database of investor losses (“haircutsâ€) in all restructurings with...

The rapid growth of international reserves, a development concentrated in the emerging markets, remains a puzzle. In this paper, we suggest that a model based on financial stability and financial openness goes far toward explaining reserve holdings in the modern era of globalized capital...

We study the nature of sovereign credit risk using an extensive set of sovereign CDS data. We find that the majority of sovereign credit risk can be linked to global factors. A single principal component accounts for 64 percent of the variation in sovereign credit spreads. Furthermore, sovereign...

Central banking in France from 1948 to 1973 was a paradigmatic example of a policy that relied on quantities rather than interest rates. Standard SVAR analyses support the common view that monetary policy was ineffective during this period. However, this approach fails to identify the stance of...

We study interbank lending and asset sales markets in which banks with surplus liquidity have market power vis-à-vis banks needing liquidity, frictions arise in lending due to moral hazard, and assets are bank-specific. Surplus banks ration lending and instead purchase assets from needy banks,...

We show how the timing of financial innovation might have contributed to the mortgage bubble and then to the crash of 2007-2009. We show why tranching and leverage first raised asset prices and why CDS lowered them afterward. This may seem puzzling, since it implies that creating a derivative...