Accumulation and distribution of human capital: the interaction between individual and aggregate variables

The paper analyses the joint evolution of accumulation and distribution of human capital in an OLG framework. Dynamics arises from the interplay between human capital distribution and individual variables—inherited human capital and inborn ability. Such interaction drives individual investment in human capital and accumulation in the economy. According to initial distribution the model provides different dynamical behaviours linking growth and inequality; in general economies with a more equal initial distribution grow faster but other cases are possible. Moreover, since the model provides an endogenous threshold for investing in human capital, the distribution is characterised by multi-modality.     

印度股票市场改革的经验与启示

印度股票市场改革对中国的启示主要在于,作为一个转型经济国家在发展金融市场尤其是股票市场的过程中出现某些消极问题在某种意义上是可以的,关键在于改革者要在既定的约束条件下完善相关的制度和规则,从而引导相关利益主体的行为以实现效率改进,同时在制度移植和模仿方面要注意有关的适用条件,在改革方式上宜快则快。     

Public support to innovation and imitation in a non-scale growth model

This paper studies technology policy within a version of Jones's [1995. R&D-based models of economic growth. Journal of Political Economy 103, 759–784] non-scale R&D-based growth framework that incorporates imitation of foreign techniques. In the model, imitation is the most important source of productivity growth at the beginning of the convergence process, whereas innovation dominates later on. In addition, the transitional dynamics of the model can account for well-known empirical regularities regarding the relationship between the level of economic development and public support to technology innovation and imitation. The paper shows as well that, even though policy in Jones-type non-scale models has no long-run growth effects, level effects can be substantial.     

Endogenous innovation and imitation in a model of equilibrium growth

This paper provides a growth model in which innovation as well as imitation occurs. Economic growth is due to product innovations. Innovators driven by the possibility to appropriate monopoly profits do not remain in their monopolistic position forever. Latecoming imitators get into possession of the private knowledge of production through investments in R & D. Imitated products are marketed in oligopolistic markets. Imitation proves to be profitable despite a single factor market and positive imitation costs. A steady-state equilibrium with positive imitation and innovation rates as well as different market structures can be derived. Finally, the effects of industrial policy measures are discussed.     

中美贸易背后的利益分析

文章首先介绍了中美贸易的不平衡发展，然后重点分析了在中美贸易中的贸易利益流向和对双方的经济影响，进而找到解决此问题的积极可行的对策。     

模仿行为经济学分析——对经济波动的一种新解释

当前 ,世界经济面临衰退的威胁 ,科学解释经济波动具有重大的理论意义和现实意义。RBC理论或方法是当代西方经济学界解释经济波动最具前沿的一种理论或方法 ,也是宏观经济分析的方向。但存在明显缺陷。本文在修正RBC模型的基础上 ,首次建立模仿行为理论模型重新解释经济波动 ,并就中国政府在防止和治理经济波动的作用进行了独特的解释 ,认为政府所起的作用是示范人作用。     

Population Aging and the Possibility of a Middle-Income Trap in Asia

We present three conditions for a demography-driven middle-income trap and show that many economies in East, South, and Southeast Asia satisfy all of them. The conditions involve (1) the support ratio of workers to consumers has an impact on economic growth, (2) economic development accompanies more investment in human capital and lower fertility due to the quantity–quality trade-off, and (3) a current low level of fertility corresponds to very low support ratios for keeping up with frontier economies in the long run. Panel analysis for 178 countries shows that (1) and (2) are satisfied for Asia with higher elasticity than others. As for (3), we set up a dynamic model for simulations, showing that approximately two-third of Asia’s developing countries have an unsustainable level of support ratios, implying possibility of a middle-income trap due to future demographic headwinds.     

Scarcity of safe assets,inflation, and the policy trap

A goal of this paper is to make sense of the seemingly puzzling behavior of interest rates and inflation – and the role of central banks in that behavior – during and after the Great Recession, particularly in the United States. To this end, we construct a model in which government debt plays a key role in exchange, and can bear a liquidity premium. If asset market constraints bind, then there need not be deflation under an indefinite zero interest rate policy (ZIRP). Further, ZIRP may not be optimal under these circumstances. A Taylor-rule central banker could be subject to a ZIRP trap and persistently undershoot target inflation. As well, a liquidity premium on government debt creates additional Taylor rule perils, because of a persistently low real interest rate. We make a case that this is the key policy predicament currently faced by many central banks in the world.     

跨越“中等收入陷阱”的消费率变化轨迹研究--基于东亚、拉美部分国家的启示

2013年我国人均GDP达到6900美元，标志着我国已居于“上中等收入”国家行列，正面临“中等收入陷阱”的威胁。本文基于日本、韩国、巴西和阿根廷的发展历程，考察了“中等收入陷阱”区间下消费率的变化轨迹，认为成功跨越“中等收入陷阱”的消费率特征是：消费率走势呈U型特征，由波动性变化演变为平稳性运行，并大致在人均GDP4000美元形成“消费率拐点”。其中，收入因素对“消费率拐点”的培育与形成具有较大的制约作用。同时文章对比分析了低中等收入阶段我国消费率变化轨迹，认为我国在人均GDP4283美元水平下形成“消费率拐点”，但当前消费需求的充分释放仍面临较强的挑战，迫切需要相应的政策措施来强化“消费率拐点”的形成。