This paper develops a theory of oligopoly and markups in general equilibrium. Firms compete in a network of product … excess of 10 US$ trillions (against $3 trillions of profits). Oligopoly lowers total surplus by 11.5% and depresses consumer …

Merger value is frequently evaluated in single market contexts without considering possible gains stemming from firms … multimarket firms create incremental value. We establish a simple theoretical model that determines merger value in a multimarket … firm environment. The model enables us to derive merger values as being independent of post-merger market shares, but …