We discuss a subscription game in which service providers (e.g., museums)team up in offering a limited time subscription or access pass allowing unlimited usage of their services. In this game, a natural way to allocate the subscription income among the service providers is by using the Shapley...

We show how the general equilibrium model with incomplete asset markets can be represented by a welfare program and we use this program to prove several well-known results. The approach is general in the sense that it uses a nonlinear specification for returns on assets and does not require...

We analyze the empirical relationship between journal prices, their quality measured by their citation counts, their age, as well as conduct of publishers. The database covers 22 scientific fields and over 2600 among the most highly reputed and cited journals in 2003. We show that (a) for-profit...