Club good intermediaries

The emergence and ubiquitous presence in everyday life of digital goods such as songs, movies, and e-books give renewed salience to the problem of providing public goods with exclusion. Because digital goods are typically traded via intermediaries like iTunes, Amazon, and Netflix, the question arises as to the optimal pricing mechanism for such club good intermediaries. We derive the direct Bayesian optimal mechanism for allocating club goods when the mechanism designer is an intermediary that neither produces nor consumes the goods, and we develop an indirect mechanism that implements this mechanism. We also derive sufficient conditions for the intermediary-optimal mechanism to be implementable with revenue sharing contracts, which are widely used in e-business.