“For example, while farmers are expected and sometimes observed to adapt to the shifting long-run climate pattern, Dell, Jones, and Olken (2014) argue that certain governmental agricultural support programs (such as subsidized crop insurance program) could have reduced farmers’ incentives to adapt. Therefore, there could be a tradeoff between reducing farmers’ revenue risk and increasing agricultural productivity.” Sun Ling Wang, Eldon Ball, Richard Nehring, Ryan Williams, and Truong Chau; Impacts of Climate Change and Extreme Weather on U.S. Agricultural Productivity: Evidence and Projection; Working Paper 23533; National Bureau of Economic Research.