Using firm level panel data from the U.S., I explore the relationship between firm size and R&D productivity for two important and R&D-intensive industries: Semiconductors and Pharmaceuticals. I employ two measures of a firm's R&D performance: the number of citations received per patented...

Using firm level panel data from the U.S., I explore the relationship between firm size and R&D productivity for two important and R&D-intensive industries: Semiconductors and Pharmaceuticals. I employ two measures of a firm's R&D performance: the number of citations received per patented...

We show that most US food, drugstore, and mass merchandise chains charge nearly-uniform prices across stores, despite wide variation in consumer demographics and the level of competition. Estimating a model of consumer demand reveals substantial within-chain variation in price elasticities and...

We build a model of firm entry and exit and show how returns to scale shape firm survival, the equilibrium productivity and size distributions and firm concentration. High productivity dispersion and high concentration ratios need not reflect inefficiencies when returns to scale are strongly...

I document the evolution of market power in the U.S. airline industry for the period 1990:Q1-2019:Q4. I recover estimates of markups, defined as the ratio of price to marginal cost, at the airline-time level. Dominant carriers in the industry have substantially increased their markups in the...

This study presents an empirical test of the relationship between market concentration and new product introductions. The analysis uses an annual panel data set of the US processed food industry that spans across the period 1983 to 2004. The estimations depict that market concentration increases...

Multi-unit ownership and branding are separate decisions and non-consumer audiences can affect both. In this study we distinguish between the branding and chaining decisions of nursing homes, while measuring the effects of litigation and labor unions on these decisions. Chaining (independent of...

I assess the effect of recent U.S. airline mergers on productive efficiency and market power. I recover productivity, markup, and marginal cost estimates for each airline using production and cost data. I then employ these estimates, a panel event study design, and synthetic control methods to...

This article examines the nature of the effect of the U.S. Supreme Court's Empagran decision through the lens of the global vitamins cartel, using legal and economic analysis and also empirical data to describe the effect. The article commences with a discussion of the analytic approach adopted...

Organizational and contract economics have achieved an increasingly important role in analyses of the food, agribusiness, and agricultural sectors. In particular, formal theoretical models of contract design and firm integration have begun to appear in the leading agricultural economics...