In response to fundamental changes in regulation and technology, the financial industry around the world is undergoing an unprecedented wave of consolidation. A growing body of empirical literature has attempted to measure the efficiency gains from M&As; however there is little sense of how the...

The general conclusion of the empirical literature is that in-market consolidation generates adverse price changes, thereby harming consumers. Previous studies, however, look only at the short-run pricing impact of consolidation, ignoring all effects that take a longer time to materialize. Using...