Yang's theory of economic specialization under increasing returns to scale (Yang, 2001) is a formal development of the fundamental Smith-Young theorem on the extent of the market and the social division of labor. In this theory, specialization — and thus, the social division of labor — is...

The main requirements for equivalence of the core of an economy and the Walrasian equilibrium allocations are largeness and the freedom to form almost arbitrary coalitions in the Edgeworthian barter processes. We investigate whether constraints on coalition formation and coalitional barter alter...