Sponsored search advertising is ascendant---Jupiter Research reports expenditures rose 28% in 2007 to $8.9B and will continue to rise at a 15% CAGR, making it one of the major trends to affect the marketing landscape. Yet little, if any empirical research focuses upon search engine marketing...

Increasingly sophisticated tracking technology offers publishers the ability to offer targeted advertisements to advertisers. Such targeting enhances advertising efficiency by improving the match quality between advertisers and users, but also thins the market of interested advertisers. Using...

Proper configuration of security technologies is critical to balance the access and protection requirements of information. The common practice of using a layered security architecture that has multiple technologies amplifies the need for proper configuration because the configuration decision...

This paper studies the competition between firms for influencers in a network. Firms spend effort to convince influencers to recommend their products. The analysis identifies the offensive and defensive roles of spending on influencers. The value of an influencer only depends on the in-degree...

This paper analyzes a unique dataset of art auctions on eBay. We study the behavior of buyers and sellers, demand and supply, by means of a novel structural estimation approach. Our empirical framework considers the process of arrival of new bidders as well as the distribution of bidder...

We study whether and how contractual arrangements (fixed price vs. time-and-materials contracts) change the effect of reputation, certification, and language characteristics on the chances of winning outsourcing contracts. Using a comprehensive dataset from an online outsourcing marketplace, we...

The literature on information aggregation predicts that market growth unambiguously reduces uncertainty about the value of traded goods. The results were developed within the classical model, which assumes that traders’ values for the exchanged good are determined by fundamental (common)...

As online information availability for products and services is increasing and as buyers engage in more online search prior to purchase decisions, it is becoming more important for firms to know when to invest to reduce buyer uncertainty. This article argues that today's firms should view...

Online applications and services automate communications and transactions between firms and consumers, promising large efficiency gains. However, consumers have been slow to use these online technologies intensively, despite widespread adoption of the internet. Customers frequently undergo a...

The Microsoft cases in the United States and in Europe have been influential in determining the contours of the substantive liability standards for dominant firms in US antitrust law and in EC Competition law. The competition law remedies that were adopted, following the finding of liability,...