A RESEARCH ON TECHNOGIES, EMPLOYMENT AND INCOME DISTRIBUTIONS IN THE MEDIUM-RUN MACROECOMICS

我们的研究考察了日本经济中劳动力份额变动的机制，特别是澄清了90年代末以来S以来的现象，即收入不平等加剧和总劳动份额下降。具体地说，我们考察了对商品的需求、商品和劳动力市场的放松管制、技能偏向的技术变革和资本积累的影响，并探索了资本、熟练劳动力和非熟练劳动力之间要素替代不对称的作用。特别是，我们探讨了资本-技能互补结构的作用，这意味着资本和非熟练劳动力之间的替代弹性大于资本和熟练劳动力之间的替代弹性，从中长期来看，资本和熟练劳动力捕捉到了生产侧新技术进步的一个特定方面。我们表明，在具有凯恩斯主义和古典特征的不完全竞争市场框架下，熟练劳动力和非熟练劳动力之间的收入不平等将被…在资本-技能互补结构下，更多的逆周期转移和聚集劳动份额发生顺周期波动。这意味着在经济衰退中，收入不平等扩大，总劳动份额下降。此外，商品和劳动力市场的放松管制可能会造成收入不平等的扩大和劳动力份额的下降。我们还发现，即使在竞争性市场框架下，在一些资本-技能互补的结构下，在技能偏向的技术变革和资本积累过程中，收入不平等也会扩大，总劳动份额也会下降。然而，当劳动力流动发生时，资本积累加剧了收入不平等的加剧和总劳动份额的下降。此外，我们还证明，在劳动力流动的情况下，资本基座互补结构可能会放大资本和总劳动力之间的总替代弹性，从而在增长的经济中稳定地提高人均收入。较少

Our research investigates the mechanism of the movements of labor shares in Japanese economy, and particularly clarifies the phenomena since late 90's, implying rising income inequalities and declining aggregate labor shares. Specifically, we investigate the effects of demand for goods, deregulations in goods and labor markets, skill-biased technical change and capital accumulation and explore the role of asymmetries of factor substitutabilities between capital, skilled and unskilled labor. Especially, we explore the role of capital-skill complementarity structure which implies that the elasticity of substitution between capital and unskilled labor is larger than that between capital and skilled labor capturing one specific aspect of the newly technological progress in the production side in the medium and the long run perspective.We show that in the imperfect competitive market framework having Keynesian and classical features, income inequalities between skilled and unskilled labor c … More ountercyclically move and aggregate labor shares procyclically fluctuate under capital-skill complementarity structure. This means that in recession, income inequalities enlarge and aggregate labor shares decline. Furthermore, deregulations in the goods and labor markets are likely to create widening income inequalities and declining labor shares. We also shows that even in the competitive market framework, under some capital-skill complementarity structures, income inequalities enlarge and aggregate labor shares decline in the process of skill-biased technical change and capital accumulation. When labor mobility occurs, however, capital accumulation reinforces rising income inequalities and declining aggregate labor shares. Moreover we demonstrate that in labor mobility case, capital-sill complementarity structures are likely to enlarge aggregate elasticity of substitution between capital and overall labor which tends to promote per capita income in the steady state in the growing economy. Less