Common ownership exists when investors concurrently hold partial and significant shares in related firms. In this paper, I compile, document, and taxonomize 30 separate cases of intervention to demonstrate how common owners influence firm behavior. Although previous literature has identified a...

This case study examines the governance role played by the Interogo Foundation as the owner of the Inter IKEA Group (the owner and franchisor of the Ikea concept) and its other subsidiaries. The IKEA businesses are the largest home furnishing operation in the world. In total, the various...

Spending by private health insurers exceeds $800 billion and is expected to rise. The Affordable Care Act provides $2 billion in subsidies to jump-start health insurers owned by their policyholders in an attempt to bring these costs under control. Firms with this corporate ownership structure...

Minority shareholdings have been on the regulatory agenda of competition authorities for some time. Recent empirical studies, however, draw attention to a new, thought provoking theory of harm: common ownership by institutional investors holding small, parallel equity positions in several...

Horizontal shareholdings exist when a common set of investors own significant shares in corporations that are horizontal competitors in a product market. Economic models show that substantial horizontal shareholdings are likely to anticompetitively raise prices when the owned businesses compete...

Scholars and antitrust enforcers have raised concerns about anticompetitive effects that may arise when institutional investors hold substantial stakes in competing firms. Their concern rests on empirical evidence that such common concentrated ownership is associated with higher prices and lower...

This paper studies the effect of common ownership on corporate social responsibility (CSR). We find that common ownership is positively associated with a firm's CSR score. The effect is stronger for firms in more competitive industries. We propose a two-stage duopoly game in which CSR serves as...

The common ownership debate has become one of the most contentious issues in corporate law today. This debate is a by-product of major changes to capital market ownership structure, which have triggered concerns about the rise of institutional investors, the growth of index investing, and the...