The Structure of Government Intervention in African Agriculture
利用八个非洲国家1980年代的农产品数据，分析农业补贴（产出、投入、汇率扭曲和总量）的决定因素，发现结构调整政策在纠正汇率扭曲方面比放开商品市场更有效，且补贴受城市化和人均耕地面积影响。
This article examines the determinants of various rates of agricultural subsidies (output, input, exchange rate distortions, and aggregate) using commodity-level data from eight African countries in the 1980s. Econometric results indicate that structural adjustment policies were more effective in reforming exchange rate distortions than in liberalising commodity markets. Output policies are determined within the national context while input subsidies are more responsive to commodity-specific conditions. Further-more, agricultural subsidies were strongly influenced by the degree of urbanisation and by the number of people per unit of arable land in a manner consistent with cheap food policy strategies.