I develop a model of rent seeking with informational foundations and an arbitrary number of rent seekers, and I compare the results with Tullock's (1980) classic model where the influence activities are "black-boxed." Given the microfoundations, the welfare consequences of rent seeking can be...

Including the entry decision in a Bertrand model with imperfectly informed consumers, we introduce a trade-off at the level of social welfare. On the one hand, market transparency is benefi cial when the number of firms is exogenously given. On the other, a higher degree of market transparency...

It is increasingly observable that in different industries competitors jointly acquire and share customer data. We propose a modified Hotelling model with two-dimensional consumer heterogeneity to analyze the incentives for such agreements and their welfare implications. In our model the...

It is increasingly observable that competitors in different industries share customer data, which can be used for targeted pricing. We propose a modified Hotelling model with two-dimensional consumer heterogeneity to analyze the incentives for such sharing and its ensuing welfare effects. We...

We analyze a model of cost-reducing R&D and compatibility decisions by two platforms. After an exogenous improvement in the efficiency of R&D, each platform has a heightened incentive to make its software incompatible with the rival's hardware device to avoid being dominated in the hardware...

Motivated by the unprecedented availability of consumer information on the Internet, we characterize the winners and losers from potential privacy regulation in the context of four commonly-used oligopoly models: a linear city model, a circular city model, a vertical differentiation model, and a...

Online review aggregators (e.g., booking dot com or ClubKviar) provide detailed information about experience goods, such as restaurants and hotels. This study fosters the understanding of how such aggregators modify competition, profits and welfare. Using a spokes model of horizontal...

We introduce a model of price competition with endogenous market transparency, where it is costly for consumers to get informed about the announced prices. We show that there is symmetric mixed strategy equilibrium with a monotonic relationship between the degree of transparency and intensity of...

We consider a best-of-three Tullock contest between two ex-ante identical players. An effort-maximizing designer commits to a vector of player-specific biases (advantages or disadvantages). In our benchmark model the designer chooses victory-dependent biases (i.e., the biases depend on the...

Note: The following is a description of the paper and not the actual abstract as it appeared in the print journal. Two models are developed to investigate the social welfare implication of the number and size of the lobbying interest groups. The first addresses social rent dissipation of...