Short Recertification Periods in the U.S. Food Stamp Program
研究美国食品券计划中短期重新认证期（三个月或更短）对错误率和参与率的影响，量化了州政府在降低错误率和鼓励参与之间的权衡。
The federal government requires states to recertify most participants in the Food Stamp Program at least once a year. In recent years, many states have dramatically increased their use of short recertification periods (three months or less) in an effort to lower their food stamp error rates. This trend has been especially pronounced for working households. This article investigates the impact of recertification regimes on error rates and program participation rates, for households with and without earnings. Based on these estimates, it quantifies the tradeoff that states faced during the 1990s between maintaining low error rates and encouraging program participation.