从要素替代弹性的角度推导了技术进步影响劳动生产率变动的不同测定模型，并在此基础上进行了模型的应用及比较分析。
This article arrives at different models determining the influence of improvement of technology on production rate when considering elasticity of substitution.
劳动力对经济的贡献依赖于低成本比较优势，劳动生产率偏低；
Labor contribution to the economy depends on the comparative advantage of low-cost, labor productivity is still low;
劳动力对经济的贡献依赖于低成本比较优势，劳动生产率偏低；
Labor contribution to the economy depends on the comparative advantage of low-cost, labor productivity is still low;
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