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...

Using the multivariate regression methodology, we investigate the short-term effect of September 11, 2001 on US defense firms. Our findings suggest that the market differentiated among US defense firms based on the percentage of defense sales to total sales. In addition, the behaviour of the...