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英文文献：Producers' Yield and Yield Risk: Perceptions versus Reality and Crop Insurance Use-生产者的产量和产量风险:认知与现实和作物保险的使用
英文文献作者：Egelkraut, Thorsten M.,Garcia, Philip,Pennings, Joost M.E.,Sherrick, Bruce J.
英文文献摘要：
Using survey data from 258 Illinois corn farmers, we investigate the relationship between subjective and objective yield measures and their effect on the use of crop insurance. Our findings show that producers view themselves as better than average with respect to yields and in terms of their variability, and that over- and underconfidence also influence their use of crop insurance. The effects are not symmetric, overconfidence is primarily reflected in the larger-than-average yield, while underconfidence emerges mainly in the larger-than-average variability. Crop insurance use is further affected by risk preferences and county yield variability.
利用对伊利诺斯州258名玉米农户的调查数据，研究了主客观产量指标之间的关系及其对作物保险使用的影响。我们的研究结果表明，生产者认为自己在产量和可变性方面优于平均水平，信心过度和不足也影响了他们对作物保险的使用。这种效应是不对称的，过度自信主要体现在收益率大于平均水平上，而不自信主要表现在变异性大于平均水平上。作物保险的使用进一步受到风险偏好和县产量变化的影响。
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