A general model of a coalition production economy allowing set-up costs, indivisibilities, and non-convexities is developed. It is shown that for all sufficiently large replications, approximate cores of the economy are non-empty.

Sufficient conditions are demonstrated for the non-emptiness of asymptotic cores of sequences of replica games, i.e., for all sufficiently large replications, the games have non-empty approximate cores and the approximation can be made arbitrarily "good." The conditions are simply that the games...

This paper applies the theory of the conventionally stable set to monopolistic and oligopolistic markets. A market model with a finite number of producers and a continuum of buyers is presented and then is formulated as a strategic game in which the producers' strategies are prices and the...

The paper establishes conditions for the existence of a set of prices which are stable and at which markets do not clear, providing a rigorous foundation for the existence of fixed-price equilibria via the macroeconomics of increasing returns. It analyzes a Walrasian price adjustment process for...