We examine shareholders' wealth effects (both in the short- and the long-run) of UK frequent bidders acquiring public, private, and/or subsidiary targets with alternative methods of payment between 1987 and 2004. We find that, in the short-run, bidders break even when acquiring public targets and gain significantly when buying private and subsidiary targets. This result is robust after controlling for relative size, bidder's book-to-market ratio, target origin, and industry diversification. Our long-run evidence, however, reveals that acquirers experience, significant wealth losses regardless of the target type acquired, indicating that markets may initially overreact to the acquisition announcement. As a result, we argue that contrary to Fuller et al. (2002) who suggest that acquiring private and subsidiary firms creates value for bidding firms, a reliable conclusion on bidders' shareholders wealth effects cannot be based solely on a short-run event study. Copyright 2007 The Authors Journal compilation (c) 2007 Blackwell Publishing Ltd.

"Is it too much to pay target firm shareholders a 50% premium on top of market price? Or is it too much to pay a 100% premium when pursuing mergers and acquisitions? How much is too much? In this paper, we examine how the extent of merger premiums paid impacts both the long-run and announcement period stock returns of acquiring firms. We find no evidence that acquirers paying high premiums underperform those paying relatively low premiums in three years following mergers, and the result is robust after controlling for a variety of firm and deal characteristics. Short term cumulative abnormal returns are moreover positively correlated to the level of the premium paid by acquirers. Our evidence therefore suggests that high merger premiums paid are unlikely to be responsible for acquirers' long-run post merger underperformance." Copyright 2007 The Authors Journal compilation (c) 2007 Blackwell Publishing Ltd.

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Abstract. Target acquisitiveness stands out as one of the primary drivers of all the key aspects of the market for corporate takeovers: acquisition announcement returns, probability of deal success, propensity to acquire and be acquired. Acquisitive targets, though a small proportion of the sample, are responsible for half of the overall negative acquisition announcement returns. Our large body of empirical evidence consistently supports the view that the motivation behind acquisitions of acquisitive targets is defensive: acquirers 'eat in order not to be eaten'. JEL classification: G34, G30