本研究利用冪次效用函數以及期望效用模型，分析在分別採行收益、價格和產量三種不賺不賠的稻米保險方案以及不同的差額理賠比例下，稻農每公頃淨收益確定等值的變化。本研究發現一期蓬萊稻作以100％差額理賠的收益保險效果最好，可提升稻農淨收益確定等值8,661元或30％，產量保險最低僅可提升1,489元；二期蓬萊稻作以100％差額理賠的產量保險效果最好，可提升稻農收益確定等值1,123元或4.7％，而價格保險反而會?低稻農津收益確定等值。

　　　　　This paper applies power utility function and the direct expected utility maximizationmodel to analyze the changes of net income certainty equivalent of rice production per hectareunder different rice insurance policies. In particular, gross revenue insurance, price insurance andyield insurance with actuarially sound premiums combined with 100% or 80% coverage areexamined.We found, in the first crop of rice, that the gross revenue insurance with actuarially soundpremiums and 100% coverage achieved that best results. It raised farmers' net income certaintyequivalent by NT$8,661(or 30%) per hectare. On the other hand, the yield insurance raised the leastcertainty equivalent. It only resulted in an increase of NT$1,489 per hectare.In the second crop of rice, the yield insurance with actuarially sound premiums and 100%coverage achieved the best results, but it only increased the certainly equivalent by NT$1,123 of perhectare. On the contrary, the price insurance resulted in a reduction of the farmers' net incomecertainty equivalent.