中文摘要：

基于AS－AD模型，从需求拉动和供给推动两个角度考察了制度对收入的影响。研究表明，制度质量越高，消费需求和投资需求越多，从而总需求越多；制度质量越高，全要素生产率越高，通过劳动力市场决定的均衡就业越多，从而总供给越多。上述两个机制决定了制度质量越高，通过总供给和总需求决定的均衡收入水平越高。提高制度质量对于扩大有效需求，促进供给增加，进而实现收入增加有重要意义。

英文摘要：

This paper,based on the AS-AD Model,explores the growth effect of institution on income.The research shows that insti-tutional quality has positive effect on income through increasing aggregate supply and aggregate demand.Firstly,high institution quality increases the aggregate demand through its effect on consumption and investment;secondly,high institutional quality increases the ag-gregate supply through its effect on TFP and equilibrium employment which is determined by labor market.Combining these two effects,we find that institutional quality has a positive effect on the equilibrium income determined by aggregate supply and aggregate demand.This paper intends to emphasis that enhancing institutional quality plays an important role in expanding effective demand,in-creasing supply and thus raising the income level.