Standard media economics models imply that increased platform competition decreases ad levels and that mergers reduce per-viewer ad prices. The empirical evidence, however, is mixed. We attribute the theoretical predictions to the combined assumptions that there is no advertising congestion and...

Equilibrium prices behave quite differently if consumers single-purchase (buy either Time Magazine or Newsweek) or if some consumers multi-purchase (buy both). Prices are strategic complements under single-purchase, and increase with magazine quality. In a multi-purchase regime prices are...

In this paper we compare the profitability of a merger to the profitability of a partial ownership arrangement and find that partial ownership arrangements can be more profitable for the acquiring and acquired firm because they can result in a greater dampening of competition. We also derive...

The agency model used by Apple and other platform providers such as Google allows upstream firms (content providers like book publishers and developers of apps) to choose the retail prices of their products (RPM) subject to a fixed revenue-sharing rule. We show that (i) this leads to higher...