We show that risk-mitigating incentives dominate risk-shifting incentives in fragile banks. We study security trading by banks, as banks can easily and quickly change their risk exposure within their security portfolio. For identification, we exploit different crisis shocks and supervisory...

We present a model of sovereign debt in which, contrary to conventional wisdom, government defaults are costly because they destroy the balance sheets of domestic banks. In our model, better financial institutions allow banks to be more leveraged, thereby making them more vulnerable to sovereign...

We analyze holdings of public bonds by over 20,000 banks in 191 countries, and the role of these bonds in 20 sovereign defaults over 1998-2012. Banks hold many public bonds (on average 9% of their assets), particularly in less financially-developed countries. During sovereign defaults, banks...