After an unsatisfactory purchase, many firms are quick to apologize to customers. It is, however, not clear why they should do that. As the apology is costless, it should be regarded as cheap talk and thus ignored by the customer. In this paper, we test in a controlled field experiment whether...

A human subject laboratory experiment compares the real-time market performance of the two most popular auction formats for online ad space, Vickrey-Clarke-Groves (VCG) and Generalized Second Price (GSP). Theoretical predictions made in papers by Varian (2007) and Edelman, et al. (2007) seem to...

A human subject laboratory experiment compares the real-time market performance of the two most popular auction formats for online ad space, Vickrey- Clarke-Groves (VCG) and Generalized Second Price (GSP). Theoretical predictions made in papers by Varian (2007) and Edelman et al. (2007) seem to...

Economic theory suggests that gasoline retail markets are prone to collusive behavior. Oligopoly market structures prevail, market interactions occur frequently, prices are highly transparent, and demand is rather inelastic. A recent sector inquiry in Germany backed suspicions of tacit collusion...

We use controlled lab experiments to test whether the market efficiency being affected by unfair negative ratings, and whether announcing the percentage of unfair ratings in the market makes any difference. We find that the market efficiency is higher than no rating information case even when...

In this study the dynamics of online product ratings is modeled based on the data for 59 items from 20 product categories. We account not only for the context dependence of subsequent reviews on previously posted reviews, but also for product type (search product or experience product). We...

Unit pricing refers to the display of an item's price per unit measure (e.g., per ounce). The present study experimentally investigates how the presence of unit price information affects consumers' grocery purchase decisions and shopping task perceptions in the common situation where prepackaged...

This paper develops a new algorithm for increasing the revenue in a dynamic product assortment problem. Then, it identifies the challenges faced by managers in practice and discusses the conditions under which workers follow the algorithm. To do so, I conducted a field experiment with a beverage...

Petrol prices tend to be subject to regular changes, often changing more than once a day in many countries, and the number of changes appears to increase. For example, a recent sector inquiry by Germany's competition authority has found that the number of price changes has almost tripled between...