The Lead-Lag Relation Between Spot and Futures Markets Under Different Short-Selling Regimes

We examine the lead‐lag relation between index futures and the underlying index under three types of short‐selling restrictions on stocks in Hong Kong. Our results indicate that lifting short‐selling restrictions can enhance the informational efficiency of the stock market relative to the index futures. We also investigate the impact of two market characteristics, market conditions and the magnitude of mispricing on the lead‐lag relations under different short‐selling regimes. Our findings suggest that if we remove restrictions, the contemporaneous price relation between the futures and cash markets becomes stronger particularly in the falling market and when the cash market is relatively overpriced.     

Study on the Interior Market Network Structure and Its Efficiency in a Knowledge Based Company

A knowledge based company is the microcosmic foundation of the knowledge economy, the design of its organization structure should amplify the company competence to be agile to the knowledge elements. This paper expounds an interior market network structure which is fit for the company intellectual capital operation, and analyses this organization pattern about the reasons of existence, the effectiveness of growing up in scale, the economies of knowledge distribution and the efficiency of operation, and it will provide some beneficial theoretical guidance about how can a company improve its competition competence in the knowledge environment through organization innovation.     

Endogenous fertility and modified Pareto-optimality

In a world of endogenous fertility, where the number of descendants is an integral part of the economic allocation, the traditional concept of Pareto-optimality cannot be applied any longer: the number of individuals to be present on earth may vary between any two allocations we wish to compare. Therefore, the concept needs to be modified in order to give new life to the discussion of economic efficiency. This work introduces a straightforward variation of the Pareto-principle and characterizes the optimality of economic allocations according to this concept. It is shown that some of the well-known traditional results on intertemporal optimality do no longer hold. In particular, lump-sum tax instruments (or the rearrangement of initial endowments) are no longer a sufficient tool to achieve efficiency. Received: March 2003, Accepted: September 2005 This work has greatly benefitted from comments by Oded Galor, Karl Shell, Vasco Santos and an excellent anonymous referee. Many thanks to the Editor of this Journal for providing an impeccable refereeing process. Support by the European Union via the Human Capital and Mobility Grant #ERBCHBICT941218 is gratefully acknowledged.     

Airport pricing systems in europe and an application of Ramsey pricing to Spanish airports

This paper describes the landing fee structures which are prevalent at most European airports: a mix of weight-based landing fees, passenger fees, and other charges. The paper describes alternative pricing systems which emphasize economic efficiency rather than airport finance considerations. Finally the paper calculates the structure of landing fees for a hypothetical uncongested airport using a Ramsey pricing formulation with data representative of uncongested Spanish airports. Further research is necessary before recommending implementation because the elasticities of demand and operating costs with distance are borrowed from North American studies.     

影响我国农产品期货市场效率的期货公司因素与对策

为了进一步促进我国农产品期货市场的完善与发展,提高我国农产品期货市场的效率,对影响我国农产品期货市场效率的期货公司因素进行了具体分析。指出当前我国农产品期货公司存在规模小,竞争力低、业务单一、功能简单、缺乏多级代理机制等问题。提出创新涉农期货公司业务范围,做大做强以农产品为特色的期货公司,从而提高涉农期货公司的竞争力等具体政策建议。     

混业经营条件下金融监管效率的比较研究

近年来,主要发达国家均放弃了对金融分业经营的严格规定,实行混业经营,金融混业经营浪潮再度掀起。随着各国金融业混业经营趋势的逐渐明显,我国现阶段实行的分业监管模式显然已经缺乏发展的基础。从前瞻的角度看,分业监管模式在防范和化解金融风险、维护金融业有序竞争的监管功能方面面临弱化的处境。因此对目前的中国而言,选择一个适当的金融监管模式,对金融业进行更有效率的监管就显得十分必要。文章正是以混业经营为背景,对美国1999年金融监管模式改革前后的金融监管效率进行了比较分析,希望对我国未来金融监管模式的建立有一定的借鉴     

我国商业银行产业组织结构与效率关系的实证分析

本文对产权结构和市场结构对我国国有商业银行和股份制商业银行的成本效率、规模效率和技术效率的影响进行实证分析。结果表明:产权结构对我国国有商业银行和股份制商业银行成本效率影响都很显著,但对股份制商业银行的影响要弱于对国有商业银行的影响,国有产权比重与银行业效率之间呈现U型曲线关系。而市场集中度和进入壁垒高会造成我国商业银行效率低下。     

生产中如何提高喷气织机的织造效率

喷气织机织造过程中开台效率不高的原因主要是经停、纬停多以及开口不清等。为此,应在各工序中采取相应措施,优化工艺参数,以达到提高喷气织机效率的目的。     

Cost efficiency modeling in health care foodservice operations

Cost efficiency and cost data in the health care foodservice sector have many interesting features. Traditional productivity approaches and empirical studies are yet to address many of these features, as they are limited to partial ratios and restricted parametric techniques. In this paper, we introduce and demonstrate the Stochastic Frontier Approach to this sector, and analyze the level of cost efficiency and its determinants. The approach is tested in a cross-sectional data set from a sample of 101 health care foodservice operations in Australia and the USA. Results indicate that the average level of cost efficiency is around 76.5% which suggests that health care foodservice operations could reduce their input costs by as much as 23.5% without decreasing their total output. Further, the coefficients of the inefficiency component, estimated simultaneously with the stochastic frontier model, indicate that both the level of manager's experience and the level of manager's education are significant determinants of cost efficiency.     

高等学校研究生教育管理机构的优化设置与协调合作

从系统科学的角度分析了研究生教育管理机构提高工作效率的原则和方法，探讨了目前高等学校内部研究生管理机构在设置、分工、协调合作等方面存在的问题，提出了解决这些问题的对策。