Are dominant online search engines monopolies enjoying low contest-ability, due to high barriers to entry, or innovative first-movers? This paper argues that dominant online search engines maintain their leadership through an “innovation feedback loop”: a process whereby increasing R&D...

The market for Internet search is not only economically and socially important, it is also highly concentrated. Is this a problem? We study the question whether 'competition is only a free click away'. We argue that the market for Internet search is characterized by indirect network...

The market for Internet search is not only economically and socially important, it is also highly concentrated. Is this a problem? We study the question whether "competition is only a free click away". We argue that the market for Internet search is characterized by indirect network...

Search engines hold the key to helping consumers access the wealth of information on the web. In this paper I examine the evolution of and competition in the internet search engine market. The goal of my analysis is to examine whether early entrants benefit in the long-run from their first-mover...

We analyze the linking and versioning strategies of a media firm when facing competition from blogs, search engines and news aggregators. First, we show that when the publisher competes against a blog it is less likely to release a fighting version if this generates signi ficant spillovers for...

Advertisements provide consumers with knowledge about private products, whereas political information is required to provide voters with knowledge of public issues. Modern information technologies and globalisation are increasing the exposure of individuals to information. Goods advertising is...

Advertisements provide consumers with knowledge about private products, whereas political information is required to provide voters with knowledge of public issues. Modern information technologies and globalization are increasing the exposure of individuals to information. Goods advertising is...

We find display advertising influences customer search for both the advertised brand and its competitors. We exploit a natural experiment that randomizes ad delivery on 500 million visits to the Yahoo! homepage and compare visitors' subsequent activities on Yahoo! Search. In three advertisers'...

Increasingly, retailers have access to better pricing technology, especially in online markets. Firms employ automated pricing algorithms that allow for high-frequency price changes. What are the implications for price competition? We develop a model of price competition where firms can differ...

Advertisements provide consumers with knowledge about private products, whereas political information is required to provide voters with knowledge of public issues. Modern information technologies and globalisation are increasing the exposure of individuals to information. Goods advertising is...