The authors generalize traditional event-study techniques to allow for event-induced parameter shifts, shifting variances, and firm-specific event periods. Their method, which nests traditional methods, also permits systematic risk to change gradually during the event period and exit the period...

Remarks at the Georgia Bankers Association's Annual Convention, Atlanta, Georgia, June 15, 2009

A country's financial system is internationally illiquid if its potential short-term obligations in foreign currency exceed the amount of foreign currency it can have access to in short notice. This condition may be necessary and sufficient for financial crises and/or exchange rate collapses...

We present a simple model that can account for the main features of recent financial crises in emerging markets. The international illiquidity of the domestic financial system is at the center of the problem. Illiquid banks are a necessary and a sufficient condition for financial crises to...

The debate over modernizing the financial structure is raising questions about the merits of modernizing the financial regulatory structure. Regulatory structure is important because an almost unavoidable feature of our current system of government is that Congress assigns multiple goals that...