Abnormal Returns in the Acquisition Market: The Case of Bank Holding Companies, 1990–1993

Recent evidence suggests that announcements of bank holding company acquisitions result in wealth transfers from the bidding to target shareholders. Empirically, this is demonstrated through findings of negative average abnormal returns to bank holding company acquirers and positive average abnormal returns to targets on announcement. Using a sample of acquisitions from the early 1990s—a period marked by the removal of significant geographic entry barriers—this paper reexamines the issue by applying a general statistical model to the event study framework to more precisely measure abnormal returns. In particular, we model returns according to the GARCH process to control for time-varying volatility. With respect to the unconditional distributions of acquirer and target abnormal returns, our findings are consistent with prior research. Further investigation into the conditional distribution of acquirer returns finds that, on announcement, interstate acquisitions using the purchase method of accounting actually increased shareholder wealth for acquirers (on average) by 1.44%. However, over a longer event horizon, the most important determinants of acquirer abnormal returns appear to be the relative size of the transaction and the method of accounting.     

The Value of Olympic Sponsorships: Who is Capturing the Gold?

In recent years, corporate sponsorship has become anincreasingly important element of the marketing communicationsmix. This paper uses data from the 1996 Atlanta Summer OlympicGames to measure the value of Olympic sponsorship. Using stockreturn data, we find that the shareholders of sponsoring firmsearn negative average abnormal returns around announcement ofOlympic sponsorship agreements. This finding, consistent withan agency cost explanation of corporate investment practices,is robust to variation in a number of firm- and sponsorship-specificvariables. In addition, cross-sectional analysis supports themonitoring hypothesis, as significant equity ownership by institutionalinvestors is positively related to abnormal returns around announcement.Our results suggest that utilizing Olympic sponsorships in themarketing communications mix may not be value-enhancing.     

Tests of ex ante versus ex post theories of collateral using private and public information

Collateral is a widely used, but not well understood, debt contracting feature. Two broad strands of theoretical literature explain collateral as arising from the existence of either ex ante private information or ex post incentive problems between borrowers and lenders. However, the extant empirical literature has been unable to isolate each of these effects. This paper attempts to do so using a credit registry that is unique in that it allows the researcher to have access to some private information about borrower risk that is unobserved by the lender. The data also include public information about borrower risk, loan contract terms, and ex post performance for both secured and unsecured loans. The results suggest that the ex post theories of collateral are empirically dominant, although the ex ante theories are also valid for customers with short borrower–lender relations that are relatively unknown to the lender.