人民币实际有效汇率的变化对我国进出口的影响

本文从空间和时间两个角度全面考察了人民币实际有效汇率的变化对我国进出口的影响。结果表明,人民币汇率的变化会显著影响我国的进出口。但是,这种影响程度在1994年以后明显地出现了下降趋势。同时,人民币汇率变化对我国进出口的调整存在明显的J曲线效应,其中进口变动大致滞后于汇率变动2个季度,而出口则滞后1个季度,滞后期限均短于西方发达国家。本文分析了其中的原因并提出了相关建议。     

Domestic financial market frictions,unrestricted international capital flows,and crises in small open economies

Summary. We present an example of a small open economy where small increases in the world interest rate may induce a sharp decline in output and a precipitous depreciation of the exchange rate. Due to a costly state verification problem in domestic credit markets, combined with unrestricted international capital flows, our economy generates two long-run equilibria, one with low GDP and a relatively depreciated real exchange rate (RER), and one with high GDP and a relatively appreciated RER. The first is always a saddle, while the second may be a sink or a source, depending on the level of the world interest rate. A crisis is identified with the economy switching from an equilibrium path approaching the high-output steady state to the saddlepath approaching the low-output steady state. In Mexicos recent history, periods of growth associated with appreciation of the RER have alternated with periods of sharp contraction and depreciation of the RER. Our economy displays such behavior in response to changes in the world interest rate.Received: 9 April 2002, Revised: 20 March 2003JEL Classification Numbers: E5, F4.G. Antinolfi, E. Huybens: We thank Steve Fazzari, Tim Kehoe, Todd Keister, Manuel Santos, Karl Shell and especially Bruce Smith for very helpful discussions. Jaime Calleja Alderete, Eduardo Camero Godínez, and Juan Vargas Hernández provided excellent research assistance. All remaining errors are ours. Huybens was an assistant professor in the Centro de Investigación Económica, ITAM, at the time this article was written, and part of this work was completed while Antinolfi was a visiting scholar at the Federal Reserve Bank of St. Louis. The views expressed herein are those of the authors, and do not reflect those of the World Bank or the Federal Reserve Bank of St. Louis. Correspondence to: G. Antinolfi     

城市土地价格波动对房地产业的影响——1999～2005年中国20城市的实证分析

本文利用1999～2005年间的数据对我国地价与房价的关系进行了实证研究.研究结果表明房价对地价有显著影响,地价对房价的影响度较小.在对地价与房价互动传导机制进行研究时,提出了3个传导路径,这些路径上的各个变量大都相互影响.通过分析我们还发现金融支持和土地政策在地价与房价变动中扮演着重要角色,抑制房价不能只控制土地价格,还应从金融支持、投资等方面着手,制定更严格的信贷制度,增加房地产交易税和提高居民可支配收入.本文的研究对于政府制定正确的货币政策和房地产业政策具有积极的参考意义.     

Joint outputs and real wage rates

The magnification effect in standard international trade theory asserts that if the relative price of the labor-intensive commodity increases, the real wage will also increase, as will the wage/rental ratio. This result depends upon the assumption that both activities are nonjoint—each combining labor and capital to produce a single output, so that if activities are joint instead, the results are in jeopardy. It is shown that if the difference between the share of commodity one produced in the first activity and in the second activity exceeds the difference between the labor distributive shares in the first activity and the second, an increase in commodity 1's relative price raises the wage/rental ratio. The real wage unambiguously rises in this case if and only if the ratio of the commodity output shares in the two activities exceeds the ratio of labor shares.     

房地产泡沫问题研究

自1998年开始，我国住房制度改革逐步深入，特别是随着福利化分房的结束，住房商品化的开始，房地产业进入了持续快速发展的新时期。山东省房地产产业发展迅速，成为影响GDP增长的重要因素。但与此同时，房地产价格也连续快速攀升。本论文以济南市为例，在收集整理大量有关房地产泡沫资料的基础上，得出了自己对于济南房地产市场的判断：总体发展健康，但同时需要进一步加强防范措施避免泡沫的形成。     

试论实物期权及其在会计实证研究中的运用

实物期权是以实物资产为标的物的未来选择权。实物期权的思想目前已被西方的学者广泛地用于会计的 实证研究当中,然而国内却鲜有学者涉足这一领域。因此本文试就此做出简要的介绍,以期起到抛砖引玉的作用。     

我国房地产市场垄断程度研究--勒纳指数的测算

房地产市场的一个重要性质就是竞争的不完全性和垄断力量的存在.勒纳指数是衡量市场垄断程度的一个重要的指标.本文分别针对我国和各省(市、区)的面板数据、各年截面数据以及我国和各省(市、区)的时间序列数据等样本,对房地产市场的勒纳指数(即市场的垄断程度)进行了测算.结果表明,我国房地产市场的垄断程度相当严重;虽然随着市场经济进程的深入和经济的发展,房地产市场的竞争状况逐渐好转,但这一过程非常缓慢;为了确保房地产市场的长期健康发展和居民福利的提高,今后政府应将促进房地产市场竞争作一项基本的方针政策.     

Choosing sides in the trilemma: international financial cycles and structural change in developing economies

ABSTRACT

This paper analyzes the impact of international financial cycles on structural change in developing economies. It is argued that the impact of these cycles depends on the specific combination of macroeconomic and industrial policies adopted by the developing economy. The cases of Brazil and Argentina are contrasted with those of Korea and China. In the Asian economies, macroeconomic policy has been a complementary tool along with industrial policy to foster the diversification of production and capabilities. Inversely, in the case of the Latin American countries, long periods of real exchange rate (RER) appreciation, combined with the weaknesses (or absence) of industrial policies, contributed to the loss of capabilities and lagging behind.     

关于高校创造性教育的思考

创造性教育是高等教育的重要任务和目标。高校创造性教育的基础是心理健康教育。创造性教育与心理健康教育是相互作用、相互促进的互动关系；高校创造性教育的关键是个性教育。个性教育的最终目标是发展学生的创造力，使之成为创造型的人才；高校创造性教育的途径是教学活动。创造性人才的培养，有赖于学校创造性的教育，而学校实施教育的途径是教学。     

旅游活动对环境的负面冲击综合分析

旅游业并非真正意义上的“无烟工业”,旅游活动对环境的负面冲击表现在方方面面,本文从暴露的地质表面、矿物及化石、土壤、水资源、植物、野生动物、空气品质、环境卫生、景观美学和文化环境八个方面对旅游活动对环境的负面影响进行了综合分析。