We analyze the effects of different types and concentration of ownership on performance using a population of firms in a model transition economy after mass privatization. Specifications based on first-differences and unusual instrumental variables show that contrary to conventional wisdom, the...

Standard economic models assume that many small investors own firms. This is so in most large U.S. firms, but wealthy individuals or families generally hold controlling blocks in smaller U.S. firms and in all firms in most other countries. Given this, the lack of theoretical and empirical work...

Standard economic models assume that many small investors own firms. This is so in most large U.S. firms, but wealthy individuals or families generally hold controlling blocks in smaller U.S. firms and in all firms in most other countries. Given this, the lack of theoretical and empirical work...

We analyze horizontal mergers when the acquirer holds a passive partial ownership stake (PPO) in the target firm prior to the merger. We show that a PPO reduces the minimal synergy level necessary to make a merger beneficial for consumers. It follows that an antitrust authority ignoring existing...