Process versus product: which determines consumer demand for genetically modified apples?*

One debate in the literature regarding consumers' reactions to genetically modified food (GMF) centres on whether consumers react to the process of gene technology or to the specific GMF products. Results from a choice experiment survey in New Zealand indicate that consumers are heterogeneous with regard to GMF and that some modifications are viewed more positively than others. These findings suggest that for some consumers the process of gene technology is the decisive factor in evaluating GMF, while for others the different potential GMF products are valued according to their enhanced attributes.     

An Extreme Value Analysis Of Advanced Age Mortality Data

Abstract

Extreme value theory describes the behavior of random variables at extremely high or low levels. The application of extreme value theory to statistics allows us to fit models to data from the upper tail of a distribution. This paper presents a statistical analysis of advanced age mortality data, using extreme value models to quantify the upper tail of the distribution of human life spans.

Our analysis focuses on mortality data from two sources. Statistics Canada publishes the annual number of deaths in Canada, broken down by angender and age. We use the deaths data from 1949 to 1997 in our analysis. The Japanese Ministry of Health, Labor, and Welfare also publishes detailed annual mortality data, including the 10 oldest reported ages at death in each year. We analyze the Japanese data over the period from 1980 to 2000.

Using the r-largest and peaks-over-threshold approaches to extreme value modeling, we fit generalized extreme value and generalized Pareto distributions to the life span data. Changes in distribution by birth cohort or over time are modeled through the use of covariates. We then evaluate the appropriateness of the fitted models and discuss reasons for their shortcomings. Finally, we use our findings to address the existence of a finite upper bound on the life span distribution and the behavior of the force of mortality at advanced ages.     

Evaluation of psychosocial and organizational factors in offshore safety: a comparative study

This study compares UK and Norwegian offshore workers' evaluations of social and organizational factors that can have an impact upon safety on offshore installations. A total of 1138 Norwegian (87% response rate) and 622 UK workers (40% response rate) responded to a self-completion questionnaire, which was distributed to 18 installations in February/March 1994. The questionnaire contained six scales that were suitable and relevant for the purposes of comparison. These scales measured ‘risk perception’, ‘satisfaction with safety measures’, ‘perceptions of the job situation’, ‘attitudes to safety’, ‘perceptions of others' commitment to safety’ and ‘perceptions of social support’. The data show clear differences in how UK and Norwegian workers evaluate various social and organizational factors that can have an impact upon safety, however, eta² analysis indicated that for most of the scales ‘installation’ explained a greater percentage of the variance than sector. The exceptions to this were scales measuring ‘safety attitudes’ where both sector and installation contributed equally to the effects. Although the results from the ‘safety attitudes’ scales should be interpreted with caution (due to low internal reliability), it is possible that they are tapping into more deeply held beliefs about the nature of safety, e.g. ‘fatalism’ and the ‘causes of accidents’. In contrast, the other scales are measuring factors directly related to the working environment such as perceptions of risk and satisfaction with safety measures on the installation. These may reflect the prevailing ‘safety climate’ or ‘atmosphere’ on the installations surveyed, whereas constructs such as ‘fatalism’, etc. may be reflections of underlying ‘cultural’ values. Recognizing the existence of different ‘safety cultures’ and understanding the processes which lie behind them could have implications for safety management in an industry which is highly international in nature and in which workers' are often required to work in foreign countries for varying periods of time.     

Business Approaches to Combating Bribery: A Study of Codes of Conduct

The question of what firms do internally in the fight against bribery is probably as important to the successful outcome of that fight as formal anti-bribery law and enforcement. This paper looks at corporate approaches to anti-bribery commitment and compliance management using an inventory of 246 codes of conduct. It suggests that, while bribery is often mentioned in the codes of conduct, there is considerable diversity in the language and concepts adopted in anti-bribery commitments. This diversity is a feature of the language used in describing parties to bribery and in defining which activities are prohibited (e.g. promising bribes versus actually giving them, gifts and entertainment, and solicitation. This diversity of language and concepts suggests that it might be useful to extend and deepen efforts in business associations and international organisations to build consensus on the meaning of bribery and corruption. In contrast, the bribery codes show evidence of an emerging consensus on managerial approaches to combating bribery. This involves the deployment of a distinctive mix of management tools, including financial record keeping, statements by executive officers, internal monitoring, whistle-blowing facilities, creation of compliance offices and threats of disciplinary action.     

Which executive human resource management practices for the top management team are associated with higher firm performance?

There is growing awareness of the importance and role of the top management team (TMT). Little is known about how this group of executives should be treated from a human resource management (HRM) perspective since most research and writing on human resource management practices have focused on lower level personnel. A unique study of top management teams in specific firms affiliated with Fortune 500 companies is described which examined the relationship of 18 Executive Human Resource Management (EHRM) practices to a measure of organizational performance. A number of those were found to be associated with higher firm performance. © 1995 by John Wiley & Sons, Inc.     

Normal probability plots and the estimation of distribution tails

Quantiles used in normal probability plots can be estimated more accurately from the maximum entropy (ME) distribution than from the order statistics of the sample distribution. The symmetric ME distribution yields additional improvements.     

The International Health Futures Network (IHFN)

The International Health Futures Network (IHFN) provides an opportunity for those oriented towards health futures research, leadership and strategic policy-making to discuss the future of health and health care, share new ideas and visions and deepen their understanding of international health-care issues. IHFN members are committed to an ambitious vision of “improving health status worldwide by applying and advancing health futures”.     

Small firm networks: a successful approach to innovation?

This paper considers the increasing trend of inter–working among small firms. Networks of small firms co–operate in certain activities, such as marketing, purchasing, R&D, training or manufacturing. But does co–operation lead to innovation? To answer this question published evaluations of small firms co–operating for mutual benefit are reappraised. Inter–working among small firms is then investigated further by interviewing three network brokers. The brokers were funded by regional governments and they facilitated co–operation between small firms. These semi–structured discussions explored the key characteristics of successful networks, the responsibilities of the broker and the level of innovation occurring. Networking is primarily a competitive response. It needs to evolve into a mechanism to enable small firms to develop innovative products and processes jointly. Small firms may have to rethink their approach to co–operation, and their motives for initiating inter–working if they are to benefit fully from co–operation.