Evaluating the real effect of bank branching deregulation: Comparing contiguous counties across US state borders
银行分支设立放松管制的实际效应:美国跨州相邻县比较
This paper proposes a new methodology to evaluate the economic effect of state-specific policy changes, using bank-branching deregulations in the US as an example. The new method compares economic performance of pairs of contiguous counties separated by state borders, where on one side restrictions on statewide branching were removed relatively earlier, to create a natural "regression discontinuity" setup. The study uses a total of 285 pairs of contiguous counties along 38…