. Equilibrium price dispersion is derived in a setting with costly capacity and demand uncertainty where different fares can be … find evidence that strongly supports both predictions of the models. After controlling for the effect of aggregate demand …

The impact of insurer competition on welfare, negotiated provider prices, and premiums in the U.S. private health care … industry is theoretically ambiguous. Reduced competition may increase the premiums charged by insurers and their payments made … hospital-insurer bargaining over premiums and reimbursements, household demand for insurance, and individual demand for …

competitors. We formulate a model of newspaper demand, entry, and political affiliation choice in which newspapers compete for … novel data on newspaper circulation, costs, and revenues. The estimated model implies that competition enhances ideological … diversity, that the market undersupplies diversity, and that optimal competition policy requires accounting for the two …

productivity gaps, but rather differences in demand-side fundamentals. We document and explore patterns in plants' idiosyncratic … demand levels by estimating a dynamic model of plant expansion in the presence of a demand accumulation process (e … passive demand accumulation, and that within-firm spillovers affect demand levels but not growth …

econometric advancements, shifting focus to direct measures of biodiversity, filling the knowledge gap on the effect of protected …

This paper summarizes in non-technical terms the economic case for conserving biodiversity, and explains why we cannot … rely on market forces to do this task. It reviews the policy interventions that could help in biodiversity conservation …