We examine changes in risk following US bank mergers in the period 1981-2014. Short-run increases in acquirer risk following mergers occur only in the first few mergers undertaken by the same acquirer, and only in systematic risk. The equity volatility of acquirers does not increase. Using a new...

Using a large sample of cross-border mergers we measure the effect of a change in location on systematic risk. When a target firm's location moves a large part of its systematic risk switches from being related to its home equity market to that of the acquirer. On average the change in betas is...