中国货币政策对价格波动的影响

货币发行量对CPI变动具有负的影响。当前中国CPI居高不下,长期以来,中国一直存在着货币增速超过CPI增速、货币政策对资产泡沫的估算和调节能力有限、通胀指标难以确定等问题,针对这些情况,我们应综合运用货币政策工具,保持货币信贷合理投放,加大金融支持经济发展方式转变和经济结构调整的力度。完善人民币汇率形成机制,采取"外堵内疏"的策略,遏制国际投机资本冲击国内金融市场。     

Redistribution and growth: Pareto improvements

This paper analyzes the relationship between income distribution and economic growth. It introduces heterogeneous households who have preferences for leisure into Grossman and Helpman's model of endogenous growth (in which income distribution has no effect on economic growth). Wealth distribution affects the endogenous rate of growth as the labor supply of each individual responds inversely to his permanent income. When the labor Engel curve is concave (convex), unequal wealth distribution decreases (increases) the rate of growth. Pareto-improving-growth-enhancing wealth redistributions are characterized.     

A solution to the Lucas–Uzawa model with increasing returns to scale: Note

Chilarescu [2008, An analytical solutions for a model of endogenous growth, Economic Modelling.] claims that he determines a solution path to the Lucas–Uzawa model with increasing returns to scale. However, the path is not a closed-form since it depends on the initial consumption and the initial time for goods production, that are unknown. Moreover, the production function is nonconcave and then the first order conditions and the transversality conditions are not sufficient for the optimality. This note converts the model to a problem in which the Hamiltonian is available and derives a fully-closed form solution.     

Expectation-driven fluctuations and welfare loss under free trade in two-country models

This paper investigates the interlinkage in the business cycles based on expectation-driven fluctuations of large-country economies in a free-trade equilibrium. We consider a two-country, two-good, two-factor general equilibrium model with sector-specific externalities. We show that some country's expectation-driven fluctuations can spread throughout the world once trade opens even if the other country has determinacy under autarky. We thus prove that under free trade, globalization and market integration can have destabilizing effects on a country's competitive equilibrium. Finally, we characterize a configuration in which opening to international trade improves the stationary welfare at the world level but deteriorates the stationary welfare of the country that imports investment goods and exports consumption goods. We conclude that in opposition to the standard belief, international trade might not be beneficial to all trading partners in the long run.     

基于小型开放经济RBC模型的中国经济波动模拟分析

以随机动态一般均衡模型作为基本分析框架,建立一个具有投资组合调整成本的小型开放经济实际经济周期(RBC)模型,在模型参数校准的基础上分析模型对中国经济波动典型化事实的模拟能力和方差分解效应,结果表明:小型开放经济RBC模型平均可以模拟大约80%以上的中国经济波动;技术冲击是造成中国产出和就业波动的主要因素。     

Trade liberalisation and endogenous growth: A q-theory approach

This paper introduces a new approach to the analysis of endogenous growth effects and uses it to illustrate two novel trade-and-growth links. The approach’s simplicity allows us to introduce scale economies and imperfect competition into the R&D and financial intermediation sectors of a Romer–Grossman–Helpman endogenous growth model. We show that trade liberalisation can stimulate growth via a procompetitive effect in the R&D sector and/or financial sector.     

Interbank market frictions, international banks and growth

In developing countries and countries in transition, a lack of finance is regarded as a major reason for the underperformance of the SME sector. The financial sector does not channel funds efficiently from savers to the most efficient investment. In a general equilibrium endogenous growth model, we explain the underperformance of the SME sector by interbank market frictions. High information costs in the interbank market lead to a high loan/deposit spread and hence to a low growth equilibrium. The solution to this problem is twofold. First, central bank policy could reduce interbank information problems by providing effective bank supervision. Second, if the central bank is expected not to have sufficient monitoring capabilities, reputation and reserves, opening up the interbank market to international banks can substitute for insufficient central bank activities.The sources of this advantage in efficiency are stronger incentives for workers and managers (direct connection between effort and return), easier monitoring and greater flexibility (McIntyre 2001).     

我国钢材期货对现货价格波动的影响

我国钢材期货和现货价格波动存在正相关性,即使价格短期出现分歧,但从长期来看也会趋向于一致;钢材期货表现出了一定的价格发现功能;上一期现货价格的波动会引起当期期货价格和现货价格的同方向变动,且影响远大于同期期货价格波动和前一期期货价格和现货价格波动的影响;钢材期货的上市不仅不是钢材现货市场价格大幅波动的原因,而且在一定程度上对现货价格的大幅波动起到了抑制作用.钢材期货的推出,无论是对涉钢企业规避价格风险,还是对钢材市场平稳发展及稳定钢材价格,都具有一定的积极意义.