... converged because of the large 14 numbers of parameters, combined with the huge number of observations. However, the form of the equation suggests a different approach based on the work of Heckman. ... defining the impact of a bank merger on deposit rates, we concentrate on two major issues, the evolution of the effect of a bank merger over time; and the question of how many of a given bank’s ... 17local market is part of the overlapping geographical range of the two merging banks). In contrast, from the point of view of a local market in which only one of the merging banks has been...