绩效评估的研究取向概述

当前的绩效评估研究主要有三种主流取向,即个人差异观点、情景观点和绩效管理观点。这三种思路的关系并不是孤立的,它们之间存在着联系,实际应用过程中,往往是结合其中的两种甚至三种观点展开研究的。以后的研究中应该在组织绩效研究、绩效概念的科学界定、基于胜任特征的绩效研究、以及结合平衡记分卡的绩效研究等方面继续展开。     

Position auctions

I analyze the equilibria of a game based on the ad auction used by Google and Yahoo. This auction is closely related to the assignment game studied by Shapley–Shubik, Demange–Gale–Sotomayer and Roth–Sotomayer. However, due to the special structure of preferences, the equilibria of the ad auction can be calculated explicitly and some known results can be sharpened. I provide some empirical evidence that the Nash equilibria of the position auction describe the basic properties of the prices observed in Google's ad auction reasonably accurately.     

Greening propensity and performance implications for logistics service providers

Stakeholders in the logistics industry have growing concern about the damage caused by logistics operations to the environment. Logistics service providers (LSPs) have taken steps to pursue environmental objectives by involving customers in their operations. This study defines greening propensity (GP) as “involvement of customers to perform logistics activities to achieve environmental performance”. We analyze survey data collected from the logistics industry in Hong Kong to address the following questions: What are the categories of greening capability in LSPs? What are the performance outcomes of LSPs’ greening capability? Theoretical contributions and implications of the study results are discussed.     

Can an Unemployment Insurance System Generate Multiple Natural Rates?

This article studies some macroeconomic consequences of the financing of an unemployment insurance scheme. Under a balanced-budget rule, when both taxes and unemployment benefits are proportional to wages, the existence of multiple natural rates of unemployment is a generic property of the matching model. Government can lead the economy to a high equilibrium by fixing the rate of tax on wages and then setting the replacement ratio so that its expenditure matches its receipts.     

大功率电子发射管的正确使用及延长其寿命的方法

大功率电子发射管广泛应用于广播电视发射设备及其他电子通信设备,文章介绍了采用冷打压老炼、灯丝电压调整、谐振匹配等技术方法延长电子管的使用寿命。     

改革开放以来中国城镇居民消费结构变动及区域差异

近年来,我国主要靠投资拉动经济增长的方式越来越难以持续,因此,扩大内需和调整投资与消费的关系是我国经济结构调整的迫切需要。文章选取东、中、西部有代表性的江苏、山西和四川三省,比较其城镇居民消费结构的相同点、差异及变动趋势,得出的结论是:中西部地区由于收入水平偏低,虽然其边际消费倾向较高,但总体消费能力有限;而东部地区虽然收入较高,但边际消费倾向较低,所以也影响其总消费量,故而全国有效需求不足,不利于启动内需与调整经济结构。最后据此提出了缩小区域之间差距、提高城镇居民,尤其东部地区居民的发展性消费等建议。     

DOES MOTHER'S EDUCATION MATTER IN CHILD'S HEALTH? EVIDENCE FROM SOUTH AFRICA1

Using the 1993 South Africa Integrated Household Survey, this paper studies the effect that mother's education through the knowledge channel has on children's health using height for age Z‐scores as health measure. Under a two‐stage least square methodology we find that an increase in 4 years on mother's education (approximately 1 standard deviation) will lead to an increase of 0.6 standard deviations on her child's height for age Z‐score. We also find, as the medical literature suggests, support for the hypothesis that mother's education is more important for children older than 24 months of age.     

From quality to innovation: Evidence from two French Employer Surveys

In this article we investigate the impact of quality systems on innovation performance using the method of propensity matching. We use two French microeconomic surveys, the “Organizational Changes and Computerization” (COI 1997) and the “Community Innovation Survey” (CIS3 1998–2000). The first hypothesis indicating that quality (ISO 9000 certification) impacts positively on innovation is supported for certain areas of innovation performance. Furthermore, the second hypothesis states that different levels of quality differentially improve innovation performance. Results indicate that the innovation performance of firms with Top Quality Level is higher than that of firms with Medium Quality Level which is also higher than that of firms with Low Quality Level for certain areas of innovation. However, we found that the difference in innovation performance between firms with Medium and Low Quality Levels is not of a great magnitude. This study implies that in order to achieve a significant innovation performance improvement via quality systems, a very well-established quality system is needed within a firm.     

Corrigendum to “On randomized matching mechanisms” [Economic Theory 8(1996)377–381]

Ma (in Econ. Theory 8, 377–381, 1996) studied the random order mechanism, a matching mechanism suggested by Roth and Vande Vate (Econometrica 58, 1475–1480, 1990) for marriage markets. By means of an example he showed that the random order mechanism does not always reach all stable matchings. Although Ma's (1996) result is true, we show that the probability distribution he presented – and therefore the proof of his Claim 2 – is not correct. The mistake in the calculations by Ma (1996) is due to the fact that even though the example looks very symmetric, some of the calculations are not as “symmetric.” We thank two anonymous referees for their helpful comments. B. Klaus’s and F. Klijn’s research was supported by Ramón y Cajal contracts of the Spanish Ministerio de Ciencia y Tecnología. The work of the authors was also partially supported through the Spanish Plan Nacional I+D+I (BEC2002-02130 and SEJ2005-01690) and the Generalitat de Catalunya (SGR2005-00626 and the Barcelona Economics Program of CREA).     

比较分析扩大内需措施

消费是生产的惟一目的，扩大内需是我国经济发展长期基本立足点。文章认为扩大内需首要任务是扩大居民消费，以此为出发点，分析了制约我国居民消费的瓶颈因素，并相应评析了常用扩大内需措施，发现很多措施不利于长期经济健康发展。因此，我国应改变扩大内需的方式，以更宽阔的眼光寻求扩大内需的有效措施，确保国民经济又好又快发展。