We study the optimal accumulation of international reserves in a quantitative model of sovereign default with long-term debt and a risk-free asset. Keeping higher levels of reserves provides a hedge against rollover risk, but this is costly because using reserves to pay down debt allows the...

We survey the literature on securitization and lay out a research program for its open questions. Securitization is the process by which loans, previously held to maturity on the balance sheets of financial intermediaries, are sold in capital markets. Securitization has grown from a small amount...

We develop a quantitative equilibrium model of financial crises to assess the interaction between ex-post interventions in credit markets and the buildup of risk ex ante. During a systemic crisis, bailouts relax balance sheet constraints and mitigate the severity of the recession. Ex ante, the...

The sale and repurchase (repo) market played a central role in the recent financial crisis. From the second quarter of 2007 to the first quarter of 2009, net repo financing provided to U.S. banks and broker-dealers fell by about $1.3 trillion - more than half of its pre-crisis total. Significant...

When "confidence" is lost, "liquidity dries up." We investigate the meaning of "confidence" and "liquidity" in the context of the current financial crisis. The financial crisis is a manifestation of an age-old problem with private money creation, banking panics. We explain this and provide some...

The Panic of 2007-2008 was a run on the sale and repurchase market (the "repo" market), which is a very large, short-term market that provides financing for a wide range of securitization activities and financial institutions. Repo transactions are collateralized, frequently with securitized...

We develop a new dynamic factor model that allows us to jointly characterize global macroeconomic and financial cycles and the spillovers between them. The model decomposes macroeconomic cycles into the part driven by global and country-specific macro factors and the part driven by spillovers...