We consider a simple game-theoretic multistage model in which a government can provide subsidies to different incumbent firms competing in a vertically differentiated oligopoly model. We find that a subsidy provided to the high-quality firm only, returns the highest net total surplus and net...

Mergers realize heterogeneous competitive effects on profits, production, and prices. To date, it is unclear whether differential merger outcomes are caused mostly by firms' technology or product market attributes. Furthermore, empirical merger studies conventionally assume that, conditional on...

Consumers have shifted their consumption of online content dramatically from websites that they browse from a personal computer to apps that they use on mobile devices. Marketers have moved with the eyeballs, particularly since people use their smartphones much of the day and carry them wherever...

Our concern is with a firm-specific industrial policy. When R&D subsidies or taxes are differentiated among firms, the question arises which firms in an industry should receive such support. We analyze a situation where firms differ in their R&D technologies in two distinct ways: They differ...

This paper develops a dynamic industry model in which firms compete to acquire customers over time by disseminating information about themselves under the presence of random shocks to their efficiency. The properties of the model's stationary equilibrium are related to empirical regularities on...

We develop a parsimonious model of innovating firms rich enough to confront firm-level evidence. It captures the dynamic behavior of individual heterogeneous firms, describes the evolution of an industry with simultaneous entry and exit, and delivers a general equilibrium model of technological...