Person:

Minor, Dylan Blu

Platform competition is ubiquitous, yet platform market structure is little understood. Theory models typically suffer from equilibrium multiplicity—platforms might coexist or the market might tip to either platform. We use laboratory experiments to study the outcomes of platform competition. When platforms are primarily vertically differentiated, we find that even when platform coexistence is theoretically possible, markets inevitably tip to the more efficient platform. When platforms are primarily horizontally differentiated, so there is no single efficient platform, we find strong evidence of equilibrium coexistence.

We provide a theoretical framework showing how CSR activities can insure a firm against lost reputation in the face of adverse events. We offer evidence for this linkage through a case study and a multi-year analysis of stock price responses for S&P 500 companies following product recalls. We find that firms with better CSR ratings fare better than those that do not. Furthermore, a firm that is exceptional in both doing good and avoiding harm suffers virtually no reputational damage following events. Using the results of the study, we offer a guide to managers for determining the appropriate amount and mix of CSR to undertake.