Counterproductive Counternarcotic Strategies?
研究了阿富汗鸦片种植的经济激励，发现当鸦片被用作信贷工具或存在分成制时，铲除政策反而可能增加种植面积。
We model the economic incentives surrounding opium poppy cultivation in Afghanistan. Specifically, we examine the impact of eradication policies when opium is used as a means of obtaining credit, and when the crops are cultivated in sharecropping arrangements. The analysis suggests that when perfect credit markets are available, an increased risk of eradication will lead to less land being allocated to opium poppy. However, when opium is used as a means of obtaining credit, an eradication policy can rather increase land under poppy cultivation. Furthermore, the unintended effects of eradication can be augmented in sharecropping arrangements.