The aggregate Lerner index is a popular composite measure of multi-product banks' market power, based on the assumption that banks' single aggregate output factor is total assets. This study identifies three limitations of the aggregate Lerner index that potentially distort its interpretation as...

This study investigates the effects of banking deregulation on county-level economic growth in the U.S. during the 1970–2000 period. Our main contribution to the literature is that we analyze both the direct and external effects of banking deregulation on local economic growth. For the regions...

The Panzar-Rosse model is a widely applied method to assess competitive conduct. In particular, it has been extensively used to analyze the competitive climate in the banking industry. To correct for differences in firm size, many empirical papers estimate a Panzar-Rosse revenue function with...

The economic literature has largely ignored the existence of global common factors and local spatial dependence in the assessment of the real effects of U.S. banking deregulation. Motivated by consistency concerns, this study uses spatial econometric models with common factors to analyze the...

The Panzar-Rosse H statistic is a commonly used measure of market power in banking. It is widely believed that H0 is inconsistent with significant market power. The theoretical part of this study rigorously disproves this perception. Instead, the possibility of H0 under conditions of substantial...