We examine manufacturers' decisions of whether and how to offer their products for sale over the internet. Manufacturers that rely on promotion of their products by brick and mortar retailers must consider the possibility that internet retailers can free ride off of that promotional effort. This...

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...