Programmers can distribute new software to online users either for a fee as shareware or bundle it with advertising …

displayed alongside these results is priced using a separate auction. Search engine advertising prices therefore reflect … policy debate asks if this marketing strategy merely makes advertising more informative, or whether it also effectively … extracts rent from advertisers. To inform this debate and to better understand search engine advertising more generally, we …

competition. This regulation requires neither demand data nor information about call costs. …

This paper discusses the economics of the Internet backbone. I discuss competition on the Internet backbone as well as … relevant competition policy issues. In particular, I show how public protocols, ease of entry, very fast network expansion … large web site to multiple ISPs (customer multi-homing) enhance price competition and make it very unlikely that any firm …

differences between products and increases upstream competition, which benefits the retailer under the wholesale scheme but hurts …' estimated fits to products and softens upstream competition, which hurts the retailer under the wholesale scheme and benefits … very different roles in changing upstream competition, and whether the retailer benefits from reviews critically depends on …

Microsoft-Yahoo!. Our characterization allows us to quantify the revenue losses relative to both the case of full competition …

data on the real-life virality of 400 video ads, and crowd-sourced measurement of advertising effectiveness among 24 … there was a decline in overall advertising effectiveness at 3-4 million views. Importantly, ads that generated both views …

Sponsored search advertising is ascendant---Jupiter Research reports expenditures rose 28% in 2007 to $8.9B and will … search advertising (i.e., searchers, advertisers, and the search engine platform). The dynamic structural model we propose … serves as a foundation to explore these and other sponsored search advertising phenomena. Fitting the model to a proprietary …