基于EDM的农业节水技术补偿

实现农业节水,必须建立有效的农业节水补偿机制对农民进行补偿。文章采用经典EDM模型,分析了农业节水技术投入对生产者、消费者及社会福利的影响。研究认为,农业节水技术投入使得生产者剩余、消费者剩余以及社会总剩余全面增加;政策实施带来社会福利变化在产品市场上的消费者与生产者之间分配,缺乏弹性的一方受到的影响往往大于富有弹性的一方;根据投入产出及"谁受益、谁补偿"的补偿原则,由消费者剩余变化及生产者剩余变化分别占社会总福利变化的比重,即可制定消费者及生产者对农业节水项目的投资付费标准以及补偿标准;建立水权交易市场,使农民通过出售节约的水资源而获益,可有效地激发其投入节水事业的积极性。

Agricultural Water Conservation Compensation Standard Based on EDM Method

It is necessary to establish agricultural water-saving compensation mechanism to realize water conversation. With the typical EDM method, the impact on the consumer, producer and social surpluses of agricultural water-saving technology input are analyzed. The result indicates that from the study, the input of agricultural water conservation led to the overall increase in social welfare including both of consumer and producer surpluses; the change of the social welfare caused by the policy implementation allocates between consumers and producers, the more impact will be born by the less elasticity side; according to the compensation principle of "who benefits and who compensates" and input-output, the welfare distribution of total surplus from agricultural water conversation input between producers and consumers determines the cost share of agricultural water conversation projects between different subjects, and the basic compensation standard; the building of perfect water market is particularly important for farmers to trade their saved water and increase income, also arouse their enthusiasm to develop agricultural water conversation.