We measure the revenue and cost implications to supermarkets of changing their price positioning strategy in oligopolistic downstream retail markets. Our estimates have implications for long-run market structure in the supermarket industry, and for measuring the sources of price rigidity in the...

We model the contest among full-service advertising agencies as a score auction. The score auction allows the advertiser to select the agency that offers the best combination of creative quality and media cost, and to determine the contract price. To participate in the contest, each agency needs...

We propose a framework for analyzing spatial competition between retailers of different formats. Our approach yields localized measures of concentration and store-level diversion ratios that can be used to prospectively evaluate mergers in highly differentiated retail markets. Our method does...

Yahoo! Research partnered with a nationwide retailer to study the effects of online display advertising on both online and in-store purchases. We use a randomized field experiment on 3 million Yahoo! users who are also past customers of the retailer. We find statistically significant evidence...

Previous studies have found that price promotions lead to a decrease in the average prices of seasonal goods in high demand season, countering the predictions of basic supply and demand. I explain this trend by proposing that price-sensitive consumers are less likely to search in low demand...