The welfare economics of measuring sustainability: a new approach based on social choice theory and systems analysis

This paper presents a new measure of sustainability within a welfare economics framework. Gross domestic product (GDP) can be used as an indicator of sustainability if the GDP estimates are undertaken within a cost-benefit analysis framework based on social choice perspectives. Sustainability is dependent on a healthy and functioning socio-economic and environmental (SEE) system. Economic development can damage the SEE system through resource degradation, over-harvesting and pollution. This paper addresses the tensions between economic development and sustainability by undertaking a number of SEE-based adjustments to GDP based on social choice perspectives in order to measure sustainability. These adjustments include the environmental and social costs caused by economic development such as water pollution, the depletion of non-renewable resources, and deforestation. Thailand is used as a case study for a 25 year period (1975-1999). The results show a divergence in terms of GDP per capita and the SEE-adjusted GDP per capita figure. The paper concludes that, with increasing environmental and social costs of economic development, pursuing such extreme high growth objectives without due environmental and social considerations can threaten present social welfare and future sustainability. Copyright © 2005 John Wiley & Sons, Ltd and ERP Environment.

An alternative perspective on relationships, loyalty and future store choice

The purpose of this research was to provide an alternative perspective for retailers to develop relationships and loyalty. This study suggests that traditional trust and commitment theories are somewhat imperfect in predicting future store choice. Through path modelling, we introduce two additional constructs of store functional loyalty and relationship worth. These constructs together with commitment are powerful predictors of future store choice. Furthermore, the study examines the antecedents of relationships, loyalty and future store choice. We conclude with new insights and practical suggestions for retailers to build relationships, loyalty and influence customers' future store choice.

The health watch case - control study of leukemia and benzene:the story so far

A case–control study nested in the Health Watch cohort of petroleum industry workers, investigated whether the excess of lymphohematopoetic cancers, identified among male members of the Health Watch cohort, was associated with benzene exposure. Cases of non-Hodgkin’s lymphoma (n=31),multiple myeloma (n=15), and leukemia (n=33)were identified between 1981 and 1999. Cases were age-matched to five controls. Exposure was retrospectively estimated for each occupational history using an algorithm in a relational database. Benzene exposure measurements, supplied by Australian petroleum companies, were used to estimate exposure for specific tasks. The tasks carried out within the job, the products handled, and the technology used,were identified from interviews with contemporary colleagues. More than half of the subjects started work after 1965 and had an average exposure period of 20 years. Exposure was low, 85% of the cumulative exposure estimates were<10 ppm years. Matched analyses showed that non-Hodgkin’s lymphoma and multiple myeloma were not associated with benzene exposure. Leukemia risk, however, was significantly increased for the subjects with greater than 16 ppm years cumulative exposure, odds ratio (OR) 51.9 (5.6–477) or with greater than 0.8 ppm intensity of highest exposed job. Cumulative exposures were similar to those found in comparable studies.The inclusion of occasional high exposures, for example, as a result of spillages, reduced the ORs, when the exposure was treated as either a continuous or a categorical variable. Our data demonstrate a strong association between leukemia and modest benzene exposure. The choice of cut-point and reference group has a marked effect on the ORs, but does not change the overall conclusions.

A review of play and play assessment used in occupational therapy

In occupational therapy play is regarded as important in itself. This view has been influenced by occupational science and the assumption that play is a child's primary occupation. To reflect this change in the view of play, assessments of play are now being developed which focus on aspects of behaviour which are unique to play. As a result of this work on play, play training programs have been developed which focus on teaching children how to play.

Using choice modelling to investigate equity preferences

Benefit cost analysis (BCA) is a widely used method of assessing environmental policies. One of the limitations of BCA is the incorporation of equity considerations into an analysis. While this is theoretically possible through the application of distributional weights, this practice has not been generally adopted due to difficulties in determining appropriate weights. This paper suggests that one way of addressing the equity issue is through the application of a staged preference technique to the estimation of equity preferences. It is demonstrated that using choice modelling enables respondents' equity preferences to be elicited and distributional weights suitable for application in BCA to be estimated.