Generalized DEA model of fundamental analysis and its application to portfolio optimization

Fundamental analysis is used in asset selection for equity portfolio management. In this paper, a generalized data envelopment analysis (DEA) model is developed to analyze a firm’s financial statements over time in order to determine a relative financial strength indicator (RFSI) that is predictive of firm’s stock price returns. RFSI is based on maximizing the correlation between the DEA-based score of financial strength and the stock market performance. This maximization involves a difficult binary nonlinear program that requires iterative re-configuration of parameters of financial statements as inputs and outputs. We utilize a two-step heuristic algorithm that combines random sampling and local search optimization. The proposed approach is tested with 230 firms from various US technology-industries to determine optimized RFSI indicators for stock selection. Then, those selected stocks are used within portfolio optimization models to demonstrate the usefulness of the scheme for portfolio risk management.     

Developing countries and the future of the automobile industry

This paper reassesses the controversial view which has assumed that, at some point in the future, the global automobile industry, having reached maturity, would naturally migrate to the leading developing countries where the markets are growing more rapidly and wages are substantially lower. The authors argue that the threshold facing a developing country seeking to establish a domestic automobile industry has risen because of two recent developments: the rise of Japan as a major automobile producer; and a new wave of technological and organizational innovation. This involves use of state-of-the-art microelectronics and flexible manufacturing system, as well as complete restructing of component supply resulting in considerable unit cost and lead-time advantages.The authors look at what these trends mean for both the OECD and the developing countries. They outline the conventional view in more detail and then present an alternative analysis of the evolution of the industry. New policy options for the developing countries are spotlighted.     

A Note about the Relationship among Transaction Costs,Institutions and Productivity Growth

In order to test the Fuess and van den Berg [I9921 hypothesis on the influence of the increasing transactions sector's costs on the total factor productivity growth rate, the authors perform calculations and estimates of the Solow'S residual for both the total GNP and the non-transactions GNP on Italian data covering the period 1951-89. The results suggest that, as regards the Italian economy, the difference between total and non-transactions productivity growth rate (effect of institutions on material production), rather than having a constant positive sign, as in the findings of Fuess and van den Berg, alternates between negative and positive sign.     

管理教练、权变奖励、组织公民行为与B2B顾客满意

本文构建了一个有关主管行为、组织公民行为和B2B顾客满意的概念模型并加以检验。研究发现（1）销售人员的组织公民行为对于B2B顾客满意具有显著正向影响；（2）销售人员组织公民行为对B2B顾客满意的影响受环境不确定性的正向调节；（3）感知的管理教练行为和权变奖励均对销售人员的情感性组织承诺和组织公民行为具有正效应；（4）情感性组织承诺是主管行为对员工组织公民行为影响的中介变量；论文最后阐述了研究的管理内涵以及未来的研究方向。     

Market Segment Response Through Field Experimentation

A key assumption underlying segmentation studies is that marketing efforts have differential effects on market segments. This question was investigated in the context of a field experiment involving enlistment in the armed forces. Approximately 8000 completed questionnaires administered at various stages in the US Navy enlistment recruiting process were collected at two points in time, corresponding to a pre- and post-experimental intervention. Attitudinal data were analysed to identify meaningful segments. Differential responses of market segments to advertising and recruiter changes were found, providing direction for evaluation of, and changes in, the creative component of advertising.     

Developing a Learning Community Approach to Business Ethics Education

In this paper we discuss a project, still in progress, that moves away from a traditional lecture based educational pedagogy. We present a team taught approach to ethics teaching that embraces a progressive philosophy of education and is focused on the development of a discussion based learning community. We describe our primary pedagogical tools of case discussion and the development of student expert role assignments as a locus, and how they relate to the learning community, course content and course objectives. Finally, we provide our preliminary review of outcomes and emerging issues.     

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Ohne Zusammenfassung     

How do trust and property security influence household contributions to public goods?: The case of the sloping land conversion program in China

Trust and property rights are generally considered to influence farmers' behavior regarding resource use and environmental management. Previous studies show that higher trust levels may enhance contributions to public goods. This paper investigates how trust and (land) property rights security influence the provision of one concrete public good: land protection through the Sloping Land Conservation Program in China. The analysis is based on household survey data from Ningxia Autonomous Region in China. From our questionnaire two trust factors are derived and distinguished, using factor analysis: general trust and kinship trust. Farm households are less likely to contribute to public goods when they perceive more secure land rights, but trust has mixed effects on public goods. The results show that general trust and kinship trust may rely on two opposite effects for influencing public goods provision. On the one hand, high levels of general trust may directly enhance people's willingness to provide contributions to public goods (by reduced likelihood to reconvert forest land) when farmers are aware of the positive environmental effects of the program, that's the public goods effect. On the other hand, general trust may also make it more likely that people invest more in their own private goods to pursue their own welfare (a more likely reconversion of forest land to arable land), that's the private goods effect. The final outcome depends on the size and direction of both effects. Compared to general trust, kinship trust is more inward-looking and self- or group-interested compared to more reciprocal general trust. Thus, unlike general trust, kinship trust may have no significant public goods effect on the provisioning of public goods.