This paper investigates the determinants of the market share of investment
banks acting as advisors in mergers and tender offers. In both mergers and
tender offers, bank market share is positively related to the contingent fe
e payments charged by the bank and to the percentage of deals completed in
the past by the bank. It is unrelated to the performance of the acquirers a
dvised by the bank in the past. In tender offers, the post-acquisition perf
ormance of the acquirer is negatively related to the contingent fee payment
s charged by the bank, suggesting that the contingent fee structure in tend
er offers ensures that investment banks focus on completing the deal. (C) 2
000 Elsevier Science S.A. All rights reserved. JEL classification: G34.