农业水价格补贴方式选择的经济学分析

从经济学的角度，对不同的农业水价补贴方式进行了分析和比较：暗补是低效的，明补是有效的补贴方式；带有数量限制的暗补兼顾了两类用水群体的利益，虽比单纯的明补低效，但这种补贴对全社会来说是一种帕累托改进。国内外的经验表明，农业水价的补贴由暗补变为明补是一种必然趋势，在这种转变的过渡时期，可以实行带有数量限制的暗补。

Economic Analysis of Different Choice of Agricultural Water Price Subsidies

Since agricultural water is vulnerable products,the government must subsidize it to achieve certain political and economic goals.From an economic view,we analyzed and compared different means of agricultural water price subsidies.Hidden subsidies is low efficient,and clear-sighted subsidies is high efficient.Though hidden subsidies with quantity limit is lower efficient than clear-sighted subsidies,it is a Pareto improvement to the whole society because it improved welfare of both kind of water using colony.It is clear showed that it is a inevitable trend for the change form hidden subsidies to clear-sighted subsidies,and hidden subsidies with quantity limit is preferred during the interim.