Is the War on Drugs Working? Examining the Colombian Case Using Micro Data
利用哥伦比亚古柯种植区农户调查面板数据，评估2000-2005年强制铲除政策的效果，发现每铲除1公顷仅减少0.44公顷供应，成本高昂，需另寻替代方案。
The intense debate on the effectiveness of the war on drugs contrasts with the scarce quantitative evidence on its impacts on drug cultivation decisions by individual producers. Using panel data from an original survey of farmers living in coca-growing areas in Colombia, we evaluate the effectiveness of forced eradication policies implemented between 2000 and 2005. We find that one additional hectare eradicated decreases coca supply by 0.44 hectares, indicating that coca can only be eradicated at a very high cost. This suggests that alternative approaches are needed to reduce coca production.