This paper studies a banking model of maturity transformation in which regulatory arbitrage induces the coexistence of regulated commercial banks and unregulated shadow banks. We derive three main results: First, the relative size of the shadow banking sector determines the stability of the...

This paper documents how traditional and shadow banks interacted with one another during the 2007 financial crisis, when both assets and liabilities flew from shadow to traditional banks. To rationalize their behavior, we propose a simple model which demonstrates the symbiotic coexistence and...