Online information servers that provide access to diverse databases where users can search for, browse through, and download the information they need have been rapidly increasing in number in the past few years. Online vendors have traditionally charged users for information on the based on the...

We examine the problem of how a content provider, specifically the National Academies Press (NAP), can optimally price the different forms of its product—print and PDF—that it sells online. Whereas products in the traditional product line generally tend to be substitutes, the different...