I develop a semi-structural approach to identify network effects on two-sided monopoly platforms without data on prices and quantities. When total revenue data is available, the test is sufficient. When separate revenue data is available on the two sides, the test is both necessary and sufficient.

We propose and test hypotheses about three endogenous mechanisms that may be driving the observed network structure of producers’ markets. We use data that we have collected on collaborative network ties among producers. Estimates of Exponential Random Graphs Models (ERGM) support our hypotheses.

Laitinen (1980) derives an input allocation model for a multiproduct firm that first maximizes revenue and second maximizes profit. While theoretically elegant, the model has never been formulated empirically because of the complexity of the model’s price-deflated terms. This paper derives the...

This paper studies the impact of relative performance evaluation (RPE) on the equilibrium locations in a Hotelling model with quadratic transportation cost. It is shown that equilibrium location varies from maximum differentiation to minimum differentiation, depending upon the relative strength...

This paper studies the discriminatory pricing of an intermediate good and compares two models with a different timing of investments undertaken by the downstream firms, before or after the upstream monopolist sets the input prices. When the more efficient downstream firm is charged a higher...

We propose a dynamic model of a patent portfolio race in an industry in which innovation is incremental. Two firms compete in prices and in research. We study the Markov perfect (closed-loop) equilibrium of the resulting differential game, identifying a steady state in which firms compete neck...

We propose a model of production where technical change is both time and management induced. We define a general management index in addition to the general time index of Baltagi and Griffin (1988) and use them as arguments in the translog production function. Time and management induced...

This paper investigates the relationship between the diffusion of EU standards and product quality upgrading using highly disaggregated import data to the EU in the food industry. Results show that, on average, the diffusion of EU voluntary standards boosts the rate of quality upgrading....

We show how technological leader gains from inviting an entrant into R&D competition to improve over existing patented technology, as the entrant takes complementary R&D effort, and the demand for both current and improved technologies is increasing with aggregate probability for successful...

I demonstrate that providing information about product quality is not necessarily the best way to address asymmetric information problems when markets are imperfectly competitive. In a vertical differentiation model I show that a Minimum Quality Standard, which retains asymmetric information,...