We study, using the non-parametric data envelopment approach,we investigated the long-run profit efficiency dynamics and theshort-run market reaction of nine pre-classified merger deals ofmerging and non-merging U.S. banks over the time period from1992 to 2003. Our main results are as follows:...

We study, using the non-parametric data envelopment approach, we investigated the long-run profit efficiency dynamics and the short-run market reaction of nine pre-classified merger deals of merging and non-merging U.S. banks over the time period from 1992 to 2003. Our main results are as...