农作物保险合同需求低迷:基于第三代前景理论的解释

Depressed demand for crop insurance contracts, and a rationale based on third generation Prospect Theory

Agricultural Economics · 2019
被引 35
人大 A-ABS 2

中文导读

研究发现美国玉米和大豆种植者对精算公平的农作物保险需求极低,即使有高额补贴,中位支付意愿也不超过公平保费;第三代前景理论中的损失厌恶和决策权重扭曲可以解释这一现象。

Abstract

Abstract When actuarially fair insurance for a major risk is available then standard economic theory posits that those subject to the risk should insure. In agriculture, it is common for producers to decline contract offers where presubsidy premiums just cover average losses and subsidies are substantial. This paper seeks to shed light on why demand is curtailed. In a mail survey of U.S. corn and soybean producers we solicited Willingness to Pay (WTP) for actuarially fair insurance at different coverage levels. We find demand to be so low that median WTP is no larger than fair premium when adjusted down by current subsidy rates, which pay for one half or more of most premium charges. WTP as a share of the fair rate is especially low when risk of loss is high. There is limited evidence that respondents appreciate the convex relationship between coverage level and expected indemnity payoff. Third generation Prospect Theory is shown to be consistent with observed findings. In particular, a strong distaste for paying premium can be rationalized by loss aversion. Furthermore, when high revenue outcomes are more likely than not, that is, negative skewness, then higher loss aversion, greater decision weight distortions and greater risk aversion will decrease WTP.

农作物保险需求不足第三代前景理论损失厌恶支付意愿