Société Générale de Belgique was the world's first universal bank. It pioneered another innovation: investing in non-listed equity. We use hand-collected data to show that the bank earned significant positive risk-adjusted returns from 1850 to 1934. This offset its flat return on the listed...

We demonstrate how the incentives of firms that partially own their suppliers or customers to foreclose rivals depend on how the partial owner can extract profits from the target. Compared to a fully vertically integrated firm, a partial owner may obtain only a share of the target's profit but...