A Spatial Analysis of Maize Marketing Policy Reforms in Zambia
用连续空间模型分析赞比亚玉米营销改革，发现自由化的福利收益比传统模型估计更大，为政策制定者提供改革效果的量化参考。
Abstract In this study we analyze recent and proposed maize marketing reforms in Zambia. To capture the effects of changing transport systems, we use a continuous‐space model in place of the traditional point‐representation model of Takayama and Judge. This method permits us to use prereform data on supply, demand, and transport costs to infer both intra‐ and interregional effects of liberalization and shows that the welfare gains from liberalization are larger than commonly thought. These results provide policy makers with estimates of the magnitude of change associated with alternative reform programs, beyond what would be available from a conventional approach.