This study empirically tests the effect of diversification on firm performance, controlling for factors influencing returns other than diversification. This study also investigates if the diversification effect has the same impact on firm performance at different points in time. The sample used...

Exploiting a granular dataset of banks' security holdings I assess the impact of unconventional monetary policy on bank lending and security holdings. Using a difference-in-differences regression setup and holding the security composition of each bank constant at its level in January 2014, well...