“外生公共品”内生供给与小农社会转型

传统微观经济学认为公共品的边际福利效应总是正的,很多实证结论证实了这一点。但是,在转型过程中,落后农业区出现了公共品内生供给增加,对福利的增加影响不显著,甚至有副作用。本文提出一种理论解释模型,认为落后农业区存在不完全可调整的消费约束线,使经济无法实现新的均衡,引致了负面的福利效应。我们用落后农业区的样本检验,得出公共品的转移支付可以提高福利,而当地自筹财政收入对福利影响总是不显著的。所以我们认为加大对落后农业区的转移支付对小农社会转型是必要的。

Exogenous Public Goods' Endogenous Supply and the Transition of Rural Society

This paper shows that exogenous public goods'endogenous supply suffered rural society in transitional period.This conclusion is caused by in- complete adjustable consume line.Because of this line,the competitive equilibrium is not achieved.This conclusion violates traditional microeconomics in tran- sitional period.And then we test our conclusion by the data from Chinese rural areas.Finally,this paper offers some advices to the Chinese government.