英国超级市场行业的竞争与垄断

近年来,以超级市场为代表的零售业发展速度已经超过了传统制造业。本文基于对英国超级市场行业的市场集中化程度以及行业竞争战略的分析,对跨国零售企业进入中国后我国零售业面临的挑战进行了预测。     

科技产业与市场:需求导向及其互动

计划经济体制向市场经济体制转变 ,促使产业结构调整越来越依赖于市场需求的拉动。市场需求作为科技产业发展的重点选择和导向 ,推动了科技与经济的一体化进程 ,加快了产业结构演变和升级 ,进一步完善了以产、学、研结合为核心的科技产业发展体系 ,进而提高了科技产业在市场经济中的竞争力。本文所要研究的是转型期市场需求与科技产业互动发展的相关问题。从市场需求导向角度 ,就市场需求对科技产业发展的影响进行分析 ,对科技领先的市场特征进行描述 ,并论述了政府对科技产业市场需求潜力的影响。     

市场结构、汇率转嫁与出口

汇率变化是影响出口贸易的重要因素。在传统的国际贸易理论中,虽然对汇率变化影响出口贸易的机制进行了详细分析,但它没有考虑到市场结构的影响。本文从市场结构的角度出发,分析在不完全竞争的市场结构下,拥有市场势力的企业的决策怎样影响到汇率的变动和产品的出口。本文的研究结果表明,在不完全竞争的市场结构下,汇率转嫁是不完全的,因此,只有大的持久的汇率贬值或升值才会对出口贸易量产生明显的效应。     

劳动契约视角下的经营者人力资本定价研究

经营者人力资本定价是目前理论研究的热点与难点问题。基于对经营者人力资本构成的多维性和调用的主动性两个关键特征的考察 ,从劳动契约的微观角度对经营者人力资本定价进行分析 ,并充分考虑劳资双方的特定状态 ,进一步探讨影响经营者人力资本价格的权变因素 ,认为经营者人力资本定价是一个复杂的系统过程 ,应该从可重新谈判的动态角度把握定价的精度     

基于利益相关者视角的浙江专业市场物流配送机制研究

浙江专业市场物流配送活动存在着错综复杂的利益相关者,他们的行为决定了浙江专业市场物流配送机制的构建模式,对物流配送活动产生重大影响。浙江专业市场物流配送机制的构建应该围绕产业集群需求打造物流支持系统,创新物流服务模式和运营组织形式,通过打造第三方供应链物流服务平台、大力发展第四方物流和电子商务物流,以及培养高素质复合型物流技术人才,促进物流配送服务升级和专业市场转型提升。     

Distributional assumptions and a test of the dual labor market hypothesis

Recent application of the switching regression model to allocate workers into the primary and secondary labor markets is considered to be the best solution to the classification problem of the empirical testing of the dual labor market theory. In such models, normality of the error terms is assumed. This paper adopts the switching regression model to test the dual labor market theory by assuming different distributions of the error terms. The test results strongly support the dual labor market theory regardless of the assumption one makes about the error terms. However, the results indicate that different distribution can lead to different percentage distributions of workers in the two segments. In particular, the normal distribution generates more workers in the primary segment than the non-normal distributions. Therefore, care must be taken not to generalize the type of industries or occupations that fall under the primary and secondary segments. First version received: October 2000/Final version received: March 2002 RID="*" ID="*"  I would like to thank Kevin Lang, Robert Marshall, and two anonymous referees for their helpful comments. I am grateful for comments received from the session participants of the Western Economic Association International Conference, San Francisco, CA, June 28–July 2, 1996, and the Midwest Economic Association Conference, Kansas City, 1997. I thank George Bonney, the Chief Statistician of Fox Chase Cancer Center, Philadelphia for his comments. Any remaining errors are my responsibility. I gratefully acknowledge financial support from Penn State Research and Development Grant, 1995.     

Asymmetric ACD models: Introducing price information in ACD models

This paper proposes an asymmetric autoregressive conditional duration (ACD) model, which extends the ACD model of Engle and Russell (1998). The asymmetry consists of letting the duration process depend on the state of the price process. If the price has increased, the parameters of the ACD model can differ from what they are if the price has decreased. The model is applied to the bid-ask quotes of two stocks traded on the NYSE and the evidence in favour of asymmetry is strong. Information effects (Easley and O'Hara 1992) are also empirically relevant. As the model is a transition model for the price process, it delivers `market forecasts' of where prices are heading. A trading strategy based on the model is implemented using tick-by-tick data.While remaining responsible for any error in this paper, the authors would like to thank R. Anderson, G. Le Fol, C. Gouriéroux, J. Jasiak, W. Pohlmeier, A. Roell, O. Scaillet, S. Wei and three anonymous referees for useful remarks and suggestions on previous versions. The authors would also like to thank A. Ruttiens from KBC-CBC for useful discussions on practical issues related to trading. Support of the European Commission Human Capital and Mobility Program through the network `Econometric inference using simulation methods' is gratefully acknowledged. This paper presents research results of the Belgian Program on Interuniversity Poles of Attraction initiated by the Belgian State, Prime Minister's Office, Science Policy Programming. The scientific responsibility is assumed by the authors.     

Economic liberalization and welfare in a model with an informal sector

The paper reexamines the conventional results relating to inflow of foreign capital, removal of protectionism and structural reform programmes, in a small open economy in terms of a two-sector general equilibrium model with an informal sector. The paper shows that in the presence of labour market distortion and a protectionist policy, inflow of foreign capital may be desirable irrespective of the pattern of trade of the economy due to its favourable impact on welfare. But the welfare implications of tariff reductions and/or structural adjustment programmes, such as deregulating the formal sector labour market, depend crucially on the economy's trade pattern. The paper provides an answer to the question as to whether in a developing economy labour market reform and tariff reform should go hand-in-hand or whether one should precede the other for welfare improvement.
JEL classification: F10, F13, F21, O17.     

汇率决定理论的新近发展:文献综述

传统汇率决定理论对于现实经济中汇率实际变动情况的解释能力十分低下.20世纪80年代以来,学术界不断寻求突破,以期为汇率如何决定这一基本命题提供更为合理的解释.在这一过程中,不断有新的文献出现,从不同的方面对传统的汇率理论进行补充、发展和替代.鉴于此,本文试图对汇率决定理论的新近发展进行梳理和介绍,借以为国内经济学界研究汇率决定问题提供一个理论参考.     

Strategic freedom, constraint, and symmetry in one-period markets with cash and credit payment

Summary. In order to explain in a systematic way why certain combinations of market, financial, and legal structures may be intrinsic to certain capabilities to exchange real goods, we introduce criteria for abstracting the qualitative functions of markets. The criteria involve the number of strategic freedoms the combined institutions, considered as formalized strategic games, present to traders, the constraints they impose, and the symmetry with which those constraints are applied to the traders. We pay particular attention to what is required to make these strategic market games well-defined, and to make various solutions computable by the agents within the bounds on information and control they are assumed to have. As an application of these criteria, we present a complete taxonomy of the minimal one-period exchange economies with symmetric information and inside money. A natural hierarchy of market forms is observed to emerge, in which institutionally simpler markets are often found to be more suitable to fewer and less-diversified traders, while the institutionally richer markets only become functional as the size and diversity of their users gets large.Received: 5 June 2003, Revised: 18 November 2003, JEL Classification Numbers: C7, G10, G20, L10, D40, D50. Correspondence to: Eric SmithEric Smith, Martin Shubik: We are grateful to Lloyd Shapley, Duncan Foley, and Doyne Farmer for discussions in the course of this work.