Optimal Incentives and Securitization of Defaultable Assets
73 Pages Posted: 21 Oct 2011 Last revised: 3 Jul 2012
Date Written: May 27, 2012
We study optimal securitization in the presence of an initial moral hazard. A financial intermediary creates and then sells to outside investors defaultable assets, whose default risk is determined by the unobservable costly effort exerted by the intermediary. We calculate the optimal contract for any given effort level and show the natural emergence of extreme punishment for defaults, under which investors stop paying the intermediary after the first default. With securitization contracts optimally designed, we find securitization improves the intermediary's screening incentives. Furthermore, the equilibrium effort level and the surplus converge to theirfirst best levels with suciently many assets.
Keywords: securitization, mortgage-backed securities, asset-backed securities, moral hazard, default risk
JEL Classification: D8, G21, G24, G32
Suggested Citation: Suggested Citation