Suchergebnisse

We study competition among a score of firms participating in an online market for a commodity computer component. Firms were able to adjust prices continuously; prices determined how the firms were ranked and listed (lowest price listed first), with better ranks contributing to firms' sales. Using a year's worth of hourly data for individual firms, we estimate a model of price adjustment, characterizing the factors driving price changes and measuring how much these factors differ across firms (i.e., strategy heterogeneity). We find evidence of managerial inattention as a cause of the price inertia observed in the market. Using separate estimates of the pricing model for groups of related firms, we simulate counterfactuals involving different mixes of these groups.

We investigate the effects of political activity on pharmaceutical prices, focusing on the health care reform period in the early 1990s. We characterize firms based on their vulnerability to future price regulation and find that the more vulnerable firms were more likely to take various actions to forestall regulation, most notably coordinating on a specific percentage price increase during 1993. Since moderating price increases could have averted regulation, the coordination appears to be the industry's response to a collective action problem.