The extent to which business groups ever existed in the United States and, if they did exist, the reasons for their disappearance are poorly understood. In this paper we use hitherto unexplored historical sources to construct a comprehensive data set to address this issue. We find that (1)...

Using a new data set of the telecommunications sector on privatization (1981-98 for 167 countries) and competition policies (1990-98 for roughly 50 countries), this Paper investigates the political economy determinants of privatization and liberalization in the telecommunications sector....