What explains the location of industrial innovation Economists have traditionally attempted to answer this question by studying firm-external knowledge spillovers. This paper shows that firm-internal linkages between production and R&D play an equally important role. I estimate an R&D location...

The question of whether and how partial common-ownership links between strategically interacting firms affect firm behavior has been the subject of theoretical inquiry for decades. Since then, consolidation and increasing concentration in the asset-management industry has led to more pronounced...

This paper argues that it is impossible to achieve the following objectives simultaneously: (i) portfolio diversification, (ii) shareholder representation, and (iii) competition. In an economy where everyone holds the market portfolio, all the companies have the same shareholders. If, in...

This paper examines the role of the “Big Three” (i.e., BlackRock, Vanguard, and State Street Global Advisors) on the reduction of corporate carbon emissions around the world. Using novel data on engagements of the Big Three with individual firms, we find evidence that the Big Three focus...

A fast-growing legal literature commenting on a set of empirical papers alleging anticompetitive effects of common ownership claims that the reported effects, if true, would imply that corporate executives violate their fiduciary duty: whereas acting in the interest of common owners can help...