The increasing pervasiveness of the Internet has dramatically changed the way that consumers shop for goods. Consumer …

Online platforms, such as Google, Facebook, or Amazon, are constantly expanding their activities, while increasing the … overlap in their service offering. In this paper, we study the scope and overlap of online platforms' activities, when they … are endogenously determined. We model an expansion game between two online platforms offering two different services to …

How did the diffusion of the Internet affect performance and product quality in the airline industry? We argue that the … growth patterns in Internet access, we find a positive relationship between Internet access and scheduled flight times. The …. We also find that despite longer scheduled flight times, flight delays increased as passengers gained Internet access …

Paid placement, where advertisers bid payments to a search engine to have their products appear next to keyword search … results, has emerged as a predominant form of advertising on the Internet. This paper studies a product-di¤erentiation model … learn about a seller?s product through a costly search. In equilibrium, a seller bids more for placement when his product is …

The phenomenon of sponsored search advertising where advertisers pay a fee to Internet search engines to be displayed … alongside organic (non-sponsored) web search results is gaining ground as the largest source of revenues for search engines …. We empirically estimate the impact of keyword attributes on consumer search and purchase behavior as well as on firms …

Theories of multi-sided markets suggest that a platform’s pricing strategies on different sides of the market are … empirically examine platforms’ pricing strategies by exploiting the gradual expansion of Craigslist, a website providing … of how incumbent media platforms respond to technologically disruptive entrants in multi-sided markets. …

The digital revolution has dramatically reduced search costs for information. Consumers can now access information that …

assortments. Consumers face a search problem within an assortment of horizontally differentiated products supplied by a monopolist …. They may search for a product match by drawing products from the assortment or by seeking word of mouth recommendations …

An increasing proportion of transactions in two-sided markets are being mediated by online platforms. Presumably …, agents choose to use online platforms because they have a lower transaction cost technology compared to alternatives. I use … platforms. I show that the matching probability for guests has increased by 18% over a span of two years on the platform. I then …