Performance-based advertising is becoming increasingly popular in the online advertising industry, where advertisers pay the publisher only when an “action” (e.g., a click-through or a purchase) is generated by the advertisement. This paper illustrates that adopting this emerging advertising...

Performance-based advertising is becoming increasingly popular in the online advertising industry, where the advertiser pays to the publisher only when an "action" (e.g., a click-through) is generated by the advertisement. We study how the performance-based advertising scheme affects one of the...

Prior works offer compelling evidence that on the demand side of the market, user-generated online product reviews play a very important role in informing consumers' purchase decisions. On the supply side, however, the interplay between online product reviews and firm strategies is less...

In online labor markets (OLMs), it is well known that platforms often enable bidders to list their skills to help employers assess their capability of completing a certain task. Given the wide range of projects in OLMs platforms, should bidders list more skills to match as many projects as...

Most previous studies in price dispersion literature consider only the dispersion of post price. We build a model combining price dispersion with the associated sales, incorporating the dynamic update of online reputation in an Internet market. We identify buyer informativeness, which measures...

This paper proposes a theoretical framework to understand how reviews for professional services, such as those provided by physicians or lawyers, differ from reviews for traditional products. Professional services have certain unique features compared to traditional products such as: (1)...

This article studies the inclusion of sponsored results in recommendations, observed in many information gatekeepers including Internet search engines, travel experts, credit raters, radio deejays, and movie critics, which are an essential entry point for many information search and decision...

Under what circumstances will a seller be better of selling his inventory sequentially, rather than selling them all in a single auction? If buyers come sequentially, there is an obvious reason to sell items sequentially. However, we show that even (1) when all buyers are present at the...

The practice of sponsored search advertising - where advertisers pay a fee to appear alongside particularWeb search results - is now one of the largest and fastest growing source of revenue for Web search engines. We model and compare several mechanisms for allocating sponsored slots, including...