Social Indifference Curves and Aggregate Demand
假设政府通过政策工具最大化固定社会福利函数，证明在特定条件下，经济体的总需求行为可视为由单一代表性消费者产生。
Suppose that the government maximizes a fixed social welfare function through the use of policy instruments. These instruments may be classical lump sum transfers of wealth or such second-best instruments as commodity taxes, income taxes, etc. Then under certain conditions the aggregate demand behavior for this economy will appear as though it were generated by a single representative consumer.