Structure and Profitability in Banking Markets

We use the structure-performance model and regression analysis to investigate a number of analytical issues that often arise in evaluating competition in connection with bank mergers and that are generally relevant to mergers in other industries. Perhaps our most consistent and strongest finding is that the local market HHI is positively and significantly related to profitability. We also find that the number of organizations and the level of recent deposit growth may provide some additional information on the level of competition. Finally, several variables including market size, the number of large banking firms, deposits per office, and resident migration rates exhibit similar relationships to profitability in the bivariate analysis, suggesting that there may be some characteristic associated with market size, density, or attractiveness that is important for competition.