THE EFFECT OF THE IMPLEMENTATION OF THE MULTIDIVISIONAL STRUCTURE ON SHAREHOLDER'S WEALTH: THE CONTINGENCY OF DIVERSIFICATION STRATEGY

This paper presents evidence on the price effect of US firms announcing the implementation of a multidivisional management structure (M-form) and whether these effects are contingent on the existing diversification strategy (either unrelated, related, or vertical integration). Differnt patterns of excess returns and systematic risk (beta) changes are associated with different diversification strategies.