Enduring Impacts of Land Retirement Policies: Evidence from the Conservation Reserve Program
研究了美国最大保护项目：保护储备计划（CRP）诱导的农田休耕在合同到期后的持续性，发现42%的休耕地在一年内不会复耕，表明临时休耕付款能产生超越合同期的土地利用变化。
<i>We examine the persistence of cropland retirements induced by the Conservation Reserve Program (CRP), the largest U.S. conservation program. We analyze micro data on observed land-use choices following CRP contract expiration over 1995–1997 and predict that 42% of CRP acres would not have been returned to crops within a year if the program had expired in 1997. These results indicate that temporary cropland retirement payments under CRP generate land-use changes that often extend beyond contract periods. The analysis suggests that targeted signing bonuses for first-time enrollees would increase the longer-term impacts of CRP and perhaps other incentive-based land-use programs.</i>