The effect of geographical deregulation on bank acquisition premiums

In recent years, many state legislatures have passed laws allowing greater geographical expansion by banking organizations, including interstate acquisitions. The reduction of barriers to geographic expansion may be expected to affect signficantly the prices paid in bank acquisitions. According to the excess demand hypothesis, merger premiums should be larger because of an increase in the number of potential bidders. According to the barriers to entry hypothesis, however, premiums should decrease as the constraints on geographic expansion are relaxed. This study presents empirical results that are consistent with the excess demand theory. Bank merger premiums are significantly larger in states that permit interstate banking. Furthermore, premiums appear to increase significantly in the year following the passage of enabling legislation. Premiums are also greater in states that allow unlimited intrastate holding company acquisitions. Some evidence also exists to support the barriers to entry hypothesis.