Abstract
This study explores the relationship between the demand for federal corn insurance and premium subsidies at each coverage level using county-level data. The study shows that the elasticities of demand with respect to per U.S. dollar net premium vary across insurance plans, coverage levels, and regions. The results indicate that corn producers in riskier regions are more sensitive to premium changes for crop insurance. However, the heterogeneity of demand was overlooked in the majority of existing insurance demand studies, which could result in biased conclusions. In addition, this study estimates the changes in producers’ corn insurance purchases if premium subsidy rates were to be reduced by 10 percentage points. The expected change in corn revenue insurance demand at the 75% coverage level in the Southern Plains (− 12.182%) would be three times greater than it is at the 80% coverage level in the Corn Belt (− 4.167%) with a 10 percentage point reduction in premium subsidy rates, similar to the corn yield insurance demand.
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Notes
We do not distinguish between the different mechanisms of the subsidy effect and the adverse selection effect, since they are not the major objective of this study.
Although the information on unit structure is available in the new version of Summary of Business data, there is no unit structure in the data for the years prior to 2002.
Revenue Assurance (RA) was only underwritten by Iowa corn farmers in 1998, and the total premiums were about 4% of the CRC total premiums in that year.
For example, according to the 2011 Agricultural Resource Management Survey, the average net worth is USD 911,000 and USD 5,600,000 for all farms and large farms, respectively (see Table 7 in Hoppe 2014). The average gross farm income is USD 153,000 and USD 2,000,000, respectively. The ratio of net worth to gross income is about 6.0 for all farms, and 2.7 for large farms, implying that large farms are more leveraged on average.
The authors sincerely thank the anonymous reviewers for pointing out the problem and proposing potential solutions to the endogeneity problem.
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Acknowledgements
This material is based upon work that is supported by the Office of the Chief Economist, U.S. Department of Agriculture, Cooperative Agreement no. 58-0111-15-017.
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Yi, J., Bryant, H.L. & Richardson, J.W. How do premium subsidies affect crop insurance demand at different coverage levels: the case of corn. Geneva Pap Risk Insur Issues Pract 45, 5–28 (2020). https://doi.org/10.1057/s41288-019-00144-8
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DOI: https://doi.org/10.1057/s41288-019-00144-8