Popular wisdom holds that publishers revise college textbooks mainly to kill off the secondary market for used books. While this behavior might be profitable if consumers are myopic, uninformed or have high short-run discount rates (that exceed the publishers'), neoclassical authors have noted...

Despite the interest in measuring price sensitivity of online consumers, most academic work on Internet commerce is hindered by a lack of data on quantity. In this paper we use publicly available data on the sales ranks of about 20,000 books to derive quantity proxies at the two leading online...

Many Internet retailers must raise margins in the future if they are to survive. This raises the important issues of whether they will be able to raise margins as well as how valuation estimates made today should evaluate projected changes to margins in the future. In this paper, we describe...