Barriers to Trade and Disadvantageous Middlemen : Nonmonotonicity of the Core*
نویسندگان
چکیده
Tn applying cooperative game theory to economic problems of exchange, it is standard to assume that all logically possible coalitions may form. However, because of institutional, legal, or physical barriers, it may in fact be impossible for certain sets of agents to communicate or trade with one another directly. It would seem worthwhile to recognize this and to analyze the impact of such barriers to trade. In [3], Myerson introduced the concept of a game with a communications graph,l which is a graph whose nodes correspond to the players in a game and within which the presence or absence of a particular link indicates the possibility or impossibility of communication
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