美国对华贸易技术壁垒的政治经济学分析

技术贸易壁垒已成为中美贸易摩擦的最主要原因之一。本文拓展了格罗斯曼和海普曼的关税模型．对美国对华贸易技术壁垒进行政治经济学分析，指出贸易技术壁垒是美国政府与相关利益集团博弈的结果，其存在具有必然性和长期性，进而提出对我国政府、企业、行业协会的政策建议。     

What lies beneath—Negative interest rates and bank lending

We study the transmission of negative interest rates to bank lending around an unexpected policy rate cut into deep negative territory by the Swiss National Bank (−0.75%). We exploit a rich data set on transaction-level corporate loans matched with bank balance sheet data. We find that banks more affected by negative interest rates offer looser lending terms and lend more than other banks. This result is consistent with the risk-taking channel, where a lower policy rate spurs bank risk-taking to maintain profits. The result implies that, even in such deep negative territory, the reversal rate has not yet been hit.     

新古典生产函数的质疑与货币量值的生产函数

新古典理论以生产函数和效用函数为基础,建立了技术关系的稀缺资源有效配置理论,其核心是表明商品和要素稀缺性的相对价格.生产函数在微观尚可应用,但并不能用于解释总量经济和经济增长与波动问题.尤其是总供给完全取决于实物生产函数的投入产出关系,这与总需求分析所采用的货币支出是不协调的.货币量值的生产函数的推导表明,总供给只是企业的货币成本函数而不联系到技术上的投入产出关系,而所有的国民收入核算中的货币量值都只是表明人们经济关系的名义变量而与实物的技术关系或生产函数是完全无关的.     

上市公司主业鲜明率的修正方法

指出了常用的主业鲜明率在实际使用中遇到的问题,主要问题是计算值会出现无意义的结果,并且对真实主营业务比率的反映会有不真实的情况,提出了修正的方法,即通过修正企业经营总体规模的方法进行修正,最后通过实际计算证明修正结果消除了无意义的结果,也更加真实地反映了主营业务的比率.     

从三次加息看我国央行宏观调控的意图

本文分析了我国央行三次加息的动态、背景厦其政策意图，并进一步指出，央行的这三次加息都是具有方向性的举措，目标是为了进一步巩固宏观调控成果，发挥经济手段在资源配置和宏观调控中的作用。与此同时，三次加息也标志着我国央行释放紧缩信号，开始步入新一轮的宏观调控周期。     

温和通货膨胀下的货币政策选择

2003年以来,我国摆脱了通货紧缩的阴影,进入了一个温和的通货膨胀时期.这一轮温和的通货膨胀主要源于货币信贷的过快增长,而基础货币投放过多主要源于外汇占款的快速增长.实证研究表明,我国通货膨胀率与M0、M1、M2以及贷款增长率之间都存在正相关关系.缓解和释放通货膨胀压力既需要运用数量型货币政策工具,更需要运用价格型货币政策工具.为了缓解通货膨胀压力,中国人民银行应该实行"双升"的货币政策,在调升人民币利率水平的同时调整人民币汇率,既升息又升值,但升息和升值的幅度不宜过大.     

Declining Discount Rates: The Long and the Short of it

The last few years have witnessed important advances in our understanding of time preference and social discounting. In particular, several rationales for the use of time-varying social discount rates have emerged. These rationales range from the ad hoc to the formal, with some founded solely in economic theory while others reflect principles of intergenerational equity. While these advances are to be applauded, the practitioner is left with a confusing array of rationales and the sense that almost any discount rate can be justified. This paper draws together these different strands and provides a critical review of past and present contributions to this literature. In addition to this we highlight some of the problems with employing DDRs in the decision-making process, the most pressing of which may be time inconsistency. We clarify their practical implications, and potential pitfalls, of the more credible rationales and argue that some approaches popular in environmental economics literature are ill-conceived. Finally, we illustrate the impact of different approaches by examining global warming and nuclear power investment. This includes an application and extension of Newell and Pizer [‘Discounting the benefits of climate change mitigation : how much do uncertain rates increase valuations?’ Journal of Environmental Economics and Management 46 (2003) 52] to UK interest rate data.     

The Effects of Public Ownership and Regulatory Independence on Regulatory Outcomes

We examine the effects of public ownership and regulatory agency independence on regulatory outcomes in EU telecommunications. Specifically, we study regulated interconnect rates paid by entrants to incumbents. We find that public ownership of the incumbent positively affects these interconnect rates, and suggest that governments influence regulatory outcomes in favor of incumbents in which they are substantially invested. However, we also find that the presence of institutional features enhancing regulatory independence from the government mitigates this effect. In order to study regulatory independence, we introduce a new cross-country time-series database—the European Union Regulatory Institutions (EURI) Database. This database describes the development of institutions bearing on regulatory independence and quality in telecommunications in the 15 founding EU member states from 1997 to 2003 *We thank Laurent Pipitone for superb research assistance. Geoff Edwards thanks the Sasakawa Foundation and the Institute of Management, Innovation and Organization at the Haas School of Business for generous financial assistance, and London Business School for non-financial support. Leonard Waverman thanks the Global Communications Consortium for support     

Estimating exchange rate dynamics with diffusion processes: an application to Greek EMU data

Recently various exchange rate models capturing the dynamics during the transition from an exchange rate arrangement of floating rates into a currency union have been derived. Technically, these stochastic equilibrium models are diffusion processes which have to be estimated by discretely sampled observations. Using daily exchange rate data prior to the Greek EMU-entrance on 1 January 2001, we develop a rigorous estimation procedure. Our estimates point to an increasing interventionist economic policy in the run-up to the Greek EMU entrance. A comparison of this econometric indication with policy information provided (ex-post) by the Bank of Greece (BoG) in its Annual Report 2000 reveals that the BoG indeed pursued such an active policy stance (so-called institutional frontloading strategies).      

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.