Simple Analytics of Productive Consumption
分析生产性消费品的影子价格，指出其等于货币价格减去边际产品，并证明内生价格和收入导致的总体偏差方向是确定的，生产性消费需求对价格和收入外生变化相对不敏感。
The shadow price of a productive good is equal to its money price less its marginal product. As more of the good is consumed, its shadow price rises because of diminishing productivity and the consumer's full income also rises because the marginal product is positive. The direction of the overall bias induced by endogenous prices and income is found to be determinate. The authors demonstrate that the demand for productive goods tends to be relatively unresponsive to exogenous changes in prices and income. Similarly, labor supply will be relatively unresponsive to wage and unearned income if market work causes fatigue. Copyright 1994 by University of Chicago Press.