Evaluating Transfer Programmes within a General Equilibrium Framework
构建了一个一般均衡模型来评估国内资助的转移支付项目，将福利影响分解为再分配、重新配置和扭曲效应，并以墨西哥为例说明从普遍食品补贴转向定向转移支付能带来显著的福利改善。
We develop a general equilibrium model for evaluating domestically financed transfer programmes and derive analytical expressions which provide a framework for combining results from a computable general equilibrium model with disaggregated household data. We separate the welfare impact into three components, i.e. redistribution, reallocative, and distortionary effects. We show how these are subsumed within one parameter, the cost of public funds. Using a Mexican programme for illustration, we show that substantial welfare gains result from a switch from universal food subsidies to targeted transfers, reflecting both the improved targeting efficiency of the latter and the relaxation the trade-off between equity and efficiency when designing tax systems.