一个关于抽象经济的均衡存在定理

An Equilibrium Existence Theorem for Economy

在抽象经济的均衡存在定理中，一般都假设偏好对应具有开图像。用一个较弱的条件代替关于偏好对应的开图像假设，证明了均衡的存在性。所得结果是Ｙａｎｎｅｌｉｓ（１９８７）均衡存在定理的一个推广．

In various theorems on the existence of equilibria in abstract economy,it is often assumedthat the preference correspondence has an open graph.With a weaker assumption to replace the opengraph assumption on the preference correspondence,the existence of equilibrium in abstract economyis proved without ordered preferences and with a measure space of agents.The result is a generaliza-tion of the Yannelis(1987)existence theorem。