As in previous decades, merger activity clusters by industry during the 1990s. One particular kind of industry shock, deregulation, becomes a dominant factor, accounting for nearly half of the merger activity since the late 1980s. In contrast to the 1980s, mergers in the 1990s are mostly stock...

A rapidly growing literature claims to reject the semi-strong form of the efficient market hypothesis by producing large estimates of long-term abnormal stock price performance subsequent to major corporate events. We re-examine three large samples of major managerial decisions, namely...

What is the economic role of mergers? We investigate this issue by performing a comparative study of mergers and other forms of corporate investment, at the industry and firm levels. In our framework, merger activity is motivated by both firm- and industry-level forces that can generally be...

This document describes how interactive market simulations are used to teach finance in the Dynamic Markets course at Harvard Business School. The course is organized around hands-on application in a wide variety of capital market settings with the goal of producing experts in financial...

This paper examines the trading behavior of professional investors around 2,130 mergers announced between 1994 and 2000. We find considerable support for the existence of price pressure around mergers caused by uninformed shifts in excess demand, but that these effects are short-lived,...