When Higher Incomes Reduce Welfare: Queues, Labor Supply, and Macro Equilibrium in Socialist Economies
基于微观排队配给模型,构建社会主义经济宏观模型,发现工资相对物价上升会延长排队时间,减少劳动供给、产出和福利,且短缺超过临界值时排队无法维持宏观均衡。
Starting from a micro model of consumer behavior under rationing by queuing that utilizes Gary Becker's "Allocation of Time" framework, we develop a simple macroeconomic model of a socialist economy. The "length of the queue" is the key endogenous variable that equilibrates aggregate supply and aggregate demand. Comparative statics analysis shows that an increase in wages over money prices brings about longer queues that reduce labor supply, output, and welfare. When shortages grow beyond a certain critical level, queues fail to sustain aggregate equilibrium in the economy.