This Internet Appendix (IA) contains three sections: The first section provides variable definitions (Section IA1), the second section outlines the development and estimation of the overbidding measure, as well as reports summary statistics and estimation results (Section IA2), and the third and...

Does accounting regime play a role in the well-documented phenomenon of overbidding in M&As? The 2001 regulatory change from a goodwill amortization to a non-amortization regime (SFAS 142) affords us a quasi-experimental setting for testing the consequences of M&A accounting rules for acquirers'...