The purpose of this study is to evaluate the risk efficiency of 85 Russian commercial banks During the period “2008-2017”. This study uses the Data Envelopment Analysis (DEA) with financial ratios to evaluate the risk efficiency of Russian banks. The inputs of model DEA are represented by...

What is the policy uncertainty surrounding expiring taxes? How uncertain are the approvals of routine extensions of temporary tax policies? To answer these questions, I use event studies to measure cumulative abnormal returns (CARs) for firms that claimed the U.S. research and development (R&D)...