type="main" <p>We provide empirical evidence that multimarket contact facilitates tacit collusion among airlines using a flexible model of oligopolistic behavior, where conduct parameters are modelled as functions of multimarket contact. We find (i) carriers with little multimarket contact do not...</p>

We investigate the role of limited access to airport facilities as a determinant of the hub premium in the U.S. airline industry. We use original data from competition plans that airports are required to submit to the U.S. Department of Transportation in compliance with the Aviation Investment...

We study the effect of congestion on monopoly second-degree price discrimination. We provide three results. First, with congestion, the firm does not always provide distinct contracts (i.e., it is not always optimal to price discriminate) and it is more likely for the low-valuation buyer to be...

The federal government now confronts considerable political pressure to add CO2 to the existing set of criteria air pollutants. As with current criteria pollutants, proposals call for control of CO2, assuming that the control of each of the three criteria pollutants is separable from the others....

We investigate the impact of charity tie-ins on transaction probabilities and sale prices using a large database of eBay auctions. We examine "natural experiments" of precisely matched clusters of charity and non-charity auctions with identical titles, subtitles, sellers, and start prices. We...

We conduct a field experiment at a nonprofit organization's online store to study how demand changes when consumers' purchases can generate revenue for a charitable cause. When purchases can trigger a small donation by an outside anonymous group, consumers respond strongly and apparently without...

We conduct a field experiment at a nonprofit organization's online store to study how demand changes when consumers' purchases can generate revenue for a charitable cause. When purchases can trigger a small donation by an outside anonymous group, consumers respond strongly and apparently without...

Consumers respond positively to products tied to charity, particularly from sellers that are relatively new and hence have limited alternative means of assuring quality. We establish this result using data from a diverse group of eBay sellers who "experiment" with charity by varying the presence...