新李嘉图模型:古典定律的当代复兴与拓展构想

新李嘉图模型研究的兴起推动了生产率核心范式重返比较优势问题讨论的视野。然而,当代生产率承载比较优势的新机理,却受到非完全竞争因素和要素禀赋结构异质性及动态化的双重影响。本文一方面探讨开发完全竞争假设改变后新李嘉图模型构造的新古典化处理的技术路径,改进基于产品品种考虑的生产率测度方法;另一方面,鉴于经典的C-D生产函数及其衍生模型难以准确反映开放经济中要素禀赋结构异质性及动态化的现实,借助对Uzawa两部门模型的讨论,建立用来表达要素密集性异质分布和动态变化的影响参数,设定面向经典生产函数的一阶约束条件,首次实现Rybczynski效应的可计算模型化及其同经典生产函数的整合。

Neo-Ricardian Model:The Ongoing Reviviscent of an Orthodox Dogma and Imaginations to Extend the Model

This paper,one hand,explores neo-classical channels through which neo-Ricardian Model can be compatible with a shift in the assumption for imperfect competition to improve the measurements of productivity on the basis of the consideration of variety of product.On the other hand,given the failure to application of Cobb-Douglas production function and its derivatives to an open economy with the heterogeneous allocation globally and dynamism of factor endowments composition,we build parameters to shed light on the heterogeneity of global distribution and dynamism of factor intensity by the discussing Uzawa’s model with two sectors,together with the first order condition under classical product function.As a result,we have captured a computable model specific to Rybczynski effect and achieved its integration into classical product function.