Applying financial portfolio and multiple criteria approaches to product line decisions

This article describes the application of decision rules from financial portfolio theory to the evaluation of product lines. The focus is on the risk/return implications of an “add” decision to the total portfolio versus the individual product. Multiple criteria approaches that aid product line evaluations are also presented.     

商业决策的场景化

授人以渔,非授人以鱼早在哈佛商学院刚刚创建初期,还是一个很小的学院时,我们就开始在商学院里采用法学院所用的案例教学的方法,也是从那时候开始,案例教学慢慢发展成为商学院教育的主流方法。在哈佛商学院的案例课程里,教授们都要求学生在课前认真研读布置的案例,并进行分     

Interest and reaction time analysis of credit card offers: Managerial implications of high level research procedures

This paper presents a new approach to the optimisation of direct mail offers. Conjoint measurement will be used to identify two aspects of an offer: the degree of interest; and the speed at which an individual processes the information. The approach allows the marketer to create offers that are simultaneously attractive to customers and easy to understand. The approach is illustrated by a credit card case study.     

How Africa can benefit from knowledge

Africa's poverty partly stems from the lack of strong scientific, technological and knowledge bases. The abundance of natural resources on the continent has been of limited value to the African people because they do not have the tools with which to turn their resources into consumable wealth. To rectify this situation, African policy makers would have to undertake various measures. First, they need to define the type of knowledge their countries require. Second, they ought to establish conditions for nurturing strategic leaders who will, in turn, seek the right forms of knowledge to tackle Africa's problems. Third, policy makers need to build the political and legal frameworks that encourage the absorption and application of scientific innovations. Fourth, African leaders ought to revamp the universities, establish regional research centres, and take capacity building more seriously. It is these measures that will facilitate Africa's meaningful participation in global knowledge flows. Above all, knowledge creation should aim at attaining human welfare, participatory democracy, peace building and socio-economic justice.     

Work experiences,work adjustment and psychological well-being of expatriate employees in Hong Kong

This study replicated and extended research on expatriate work adjustment by examining the antecedents of work adjustment and its outcomes in terms of psychological well-being. Data were obtained from a nationally heterogeneous sample (N = 184) of expatriate employees in Hong Kong using a structured questionnaire. Results of regression analysis revealed role conflict to be significantly negatively related to work adjustment, while role discretion, co-worker support and work-method ambiguity (clarity) were significantly positively related to work adjustment. Of the three hypothesized outcomes, work adjustment was significantly positively related only to job satisfaction but not to quality of life and marital adjustment. Though not the focus of this study, interaction adjustment was found to be significantly positively related to quality of life. Limitations of the study and implications of the findings are discussed.     

Racial Earnings Disparities and Family Structure

One explanation for the widening of racial earnings gaps among family heads during the 1980s is that black families were increasingly headed by females during that period. This explanation is tested using data on black and white family heads in 1976 and 1985 from the Institute for Research on Poverty's Current Population Survey. Log-earnings equations, corrected for selection bias and for the endogeneity of labor force participation, are estimated for blacks and whites in 1976 and 1985. If the impact of rising female-family headship on labor force participation is ignored, one finds support for the family structure explanation. But support for alternative explanations is also found. There are substantial impacts of within-race gender discrimination and of market racial discrimination. When the endogeneity of family structure is taken into account, further support is found for the view that endowment differences only explain a modest portion of the rising gap in earnings between black and white family heads.     

Impacts in Uganda of rising global food prices: the role of diversified staples and limited price transmission

This study assesses the potential impact of rising world food prices on the welfare of Ugandan households. While Uganda experienced sharply higher food prices in 2008, as a landlocked, food‐exporting country the causes of those price changes were mainly regional and indirect rather than directly transmitted from global markets. Using trade volumes, food prices, and household survey data we describe how Uganda, unlike some other countries, is partially shielded from direct impacts of global food price movements. Although the majority of Ugandans are net food buyers, the adverse impact at household‐level of rising global prices is moderated by the relatively large quantity and range of staples consumed that come from home production. Moreover, several of these are not widely traded. Some population groups in Uganda are vulnerable to rising food prices, however, primarily those for whom maize is an important staple, including those dependent upon humanitarian relief and the urban poor. Only a relatively small group of Ugandan households will benefit directly and immediately from rising food prices—the significant net sellers of food crops constituting between 12% and 27% of the population. In this assessment we do not estimate the level and extent of wider second round effects from these higher prices.