U形生产线在装配生产中的优化

本文针对制造厂及装配厂的个性化的批量产品订单,结合精益生产的理念,运用U形生产线进行优化生产,提高生产效率,同时采用多工位的布置方式,以满足不同时间不同批量的需求,减少库存。     

Noise Trading and the Management of Operational Risk; Firms,Traders and Irrationality in Financial Markets*

abstract Efficient market models cannot explain the high level of trading in financial markets in terms of asset portfolio adjustment. It is presumed that much of this excessive trading is irrational ‘noise’ trading. A corollary is that there must either be irrational traders in the market or rational traders with irrational aberrations. The paper reviews the various attempts to explain noise trading in the finance literature, concluding that the persistence of irrationality is not well explained. Data from a study of 118 traders in four large investment banks are presented to advance reasons why traders might seek to trade more frequently than financial models predict. The argument is advanced that trades do not simply occur in order to generate profit, but it does not follow that such trading is irrational. Trading may generate information, accelerate learning, create commitments and enhance social capital, all of which sustain traders' long term survival in the market. The paper treats noise trading as a form of operational risk facing firms operating in financial markets and discusses approaches to the management of such risk.     

透过人民币升值"迷雾"破译外国贸易壁垒强化"密码"

对于当今的中国经济来说,面对要求人民币升值"迷雾",外国对中国贸易壁垒在不断地强化.在日本,官方及公众媒体提出一种"中国威胁论",指责中国"输出通货紧缩",要求人民币升值.在美国,"廉价的中国产品使国内制造业感到了压力,导致产业界产生了危机感",相关行业协会和劳工组织纷纷出面向政府施加压力.     

What does the future hold for giving? An approach using the social representations of Generation Y

• Nowadays, not‐for‐profit organizations and charities face the ageing of donors and a growing debate over monetary donation collection methods. They need to find solutions to attract younger generations of donors. Could this be done using the same methods applied to older generations? This present research investigates social representations (SRs) of giving by younger generations to understand how not‐for‐profit organizations and charities should approach them. The study focuses on SRs of a French sample of 276 individuals from Generation Y born between 1979 and 1991. It uses the free association technique. The results show paradoxical representations of giving. Institutionalization of giving is salient as representation of it as a freely consenting act. The paradox relies also in the strong presence of a relationship with others that parallels the gift as an individualistic choice.
• Generation Y individuals appear to be sociable, yet they evoke more sharing and solidarity than charity. Institutionalized forms of giving, particularly via charities and not‐for‐profit organizations, are rejected. These individuals seem to express their individuality through practices that resemble sharing rather than giving. From a managerial point of view, these results shed light on the factors liable to cause members of this generation to give, such as (i) the use of social networks, (ii) appealing to pleasure, festivities and efficiency rather than to guilt and duty, and (iii) encouragement to “work within the not‐for‐profit organization”.

Copyright © 2012 John Wiley & Sons, Ltd.     

Vacaciones y licencias en países desarrollados: los Estados Unidos a la zaga en cuanto a equilibrio entre vida profesional y vida familiar

Los autores comparan las normativas sobre vacaciones y licencias susceptibles de facilitar el equilibrio entre vida profesional y familiar de Australia, Canadá, República de Corea, Estados Unidos, Europa occidental y Japón utilizando un índice compuesto para clasificarlas. Los Estados Unidos figuran en último lugar: la concesión de vacaciones anuales al trabajador no es obligatoria y las licencias por motivos familiares se limitan a 12 semanas al año. Este bajo nivel de reglamentación podría deberse, según los autores, a una concepción mercantilista del empleo sumada a la creencia de que empleador y trabajadores tienen idéntica capacidad de negociación, visión no compartida por las demás democracias industrializadas.     

Real Asset Valuation under Imperfect Competition: Can We Forget About Market Fundamentals?

Real assets are usually valued by computing the stream of profits they can bring to a price‐taking firm in a liquid market. This method ignores market fundamentals by assuming that all the relevant information is included in the spot price. Our article analyses the bias resulting from such an approach when the market is imperfectly competitive. We propose a stylised two‐period model of the natural gas market with no uncertainty, focusing on strategic interactions between two types of oligopolistic players—pure traders and suppliers with downstream customers—who have access to storage. We show that the true value of storage capacity is not the same for traders and for suppliers. Comparing the latter value with the traditional price‐taking valuation reveals a systematic bias that tends to induce underinvestment.     

Liberty and the Post‐utilitarian Society

Utilitarian foundations for limited government are shaky insofar as they assume rational and consistent individuals. Recently economists’ assumption of rational actors has come under sustained attack. Behavioural economics has suggested that people are plagued by irrational biases and inconsistencies. These developments have led to a post‐utilitarianism which is held to justify paternalistic interventions by the state via ‘sin taxes’, direct bans or new obligations. Individual responsibility is seriously undermined, as is faith in markets. Supporters of individual freedom need to move away from utilitarian reasoning, reassert core values of autonomy and responsibility, and define strict limits on the scope of government intervention.     

Individual efficiency and club performance: a panel analysis of professional baseball

This paper investigates whether players' individual‐ and club‐level efficiency has substantial impact on club performance in the Chinese Professional Baseball League (CPBL). Using data from 1990 to 2000, and a stochastic frontier model, we propose a different way to measure club‐level efficiency. Our empirical results indicate that club‐level efficiency is crucial to club performance, measured by the winning percentage. Although the literature shows that some inefficient clubs with abundant resources are still very successful on the diamond, our results confirm that club‐level efficiency has a moderate impact on the success of a baseball club in the CPBL. Copyright © 2010 John Wiley & Sons, Ltd.     

Do Institutionalized Traditions Matter During Crisis? Employee Downsizing in Korean Manufacturing Organizations

This study examines the downfall of the permanent employment tradition in South Korean manufacturing organizations in the aftermath of the 1997 East Asian economic crisis. We explore whether organizations abandon their traditional institutionalized practices under discontinuous environmental change or despite the change continue these time‐honoured practices. We examine both the organizational factors that inhibit lay‐offs and performance indicators that trigger organizations to re‐evaluate their lifetime employment practices under drastic environmental upheaval. We test our hypotheses on 574 Korean manufacturing organizations and find that under discontinuous change: (1) economic and institutional factors simultaneously apply opposite forces on organizational actions; (2) organizational factors such as poor performance on productivity and export create a need for headcount reductions while factors such as size, domestic ownership, government support, and unionization create social and institutional pressures that inhibit downsizing; and (3) prior experience with downsizing moderates the relationship between institutional factors and further downsizing.