In support of Fomby and Murfin's (2005) article published in this journal, we demonstrate empirically, rather than theoretically, the severe consequences of using Heteroscedasticity and Autocorrelation Consistent (HAC) SEs in regression-based financial event studies. Applying an event study to a...

Delay due to multiple merger reviews in regulated industries is analysed empirically. Tests on a sample of over 500 mergers between 1990 and 1998 reveal that delay is 80% longer in regulated industries than unregulated industries.