of takeover rumors of publicly traded US companies shows that public information on a rumored takeover target … pending takeover will be materialized. To our knowledge, this predictive power of historical CAR for the takeover rumor … historical CARs. This suggests that the market overreacts to takeover rumors that will not be materialized. Furthermore, trading …

Largely constant average acquirer returns over the past four decades mask fundamental changes in the takeover market … the 1980s. Offsetting this increase, the average bidder-specific component has declined. We propose a theory of bidder …-specific synergies to help interpret these opposing trends. In our theory and in the data, acquirer returns increase with the extent to …