Economic Welfare Evaluations for Producers under Uncertainty
检验了风险下生产者剩余和消费者剩余作为企业福利度量的有效性,在常绝对风险厌恶和产出价格不确定性下,这些度量精确等于补偿变差、等价变差或确定性等价的变化,并讨论了递减绝对风险厌恶下的定性比较。
Abstract The validity of producer and consumer surplus measures of firm welfare under risk is examined. Under constant absolute risk aversion and output price uncertainty only, these measures are an exact measure of firm welfare as defined by compensating variation, equivalent variation or the change in the certainty equivalent. Under decreasing absolute risk aversion, qualitative comparisons of various measures are discussed. For example, producer's surplus as measured by the area above the uncompensated risk averse supply curve overstates the compensating variation of a change in expected price of output. Procedures for calculating firm welfare under production uncertainty and a variety of economic environments are proposed. Generally, these procedures are applicable only when absolute risk aversion is constant.