基于健康营养调查(CHNS)对地理禀赋贫困陷阱的实证分析

Empirical Analysis about the Poverty Trap of Geographical Endowment Based on China Health and Nutrition Survey(CHNS)

通过多分格主成分分析法将多个从不同角度代表地理禀赋的指标降维成一个能够单独代表地理禀赋的指标——地理禀赋指数。将Romer生产函数与Ramsey模型相结合获得地理禀赋指数与农户消费增长率之间相关关系的欧拉方程。欧拉方程显示,当地理禀赋指数较低时,农户的长期消费增长率为负即落入地理禀赋贫困陷阱。随着地理禀赋指数增加,农户的长期消费增长率由负转正并且逐渐增加即脱离地理禀赋贫困陷阱。在实证部分使用中国健康营养调查的数据验证了上述机制,并且最终根据实证结果提出了相应的政策建议。

Using Polychoric PCA to reduce the dimensionality of a serial of geographical endowment variables into geographical endowment index. Getting the Euler function about the causal relationship between geographical endowment index and consume growth rate by merging Romer production function with Ramsey model. The Euler function indicates that the long-term growth rate of consume is negative when geographical endowment index is relatively low. The long-term consume growth rate of agricultural households transfer from negative to positive with the increasing of geographical endowment index. Using CHNS data to validate the above mechanism and putting forward some corresponding policy suggestions.