Breaking Carbon Lock-In: Path Dependencies in Large-Scale Transportation Infrastructure Projects

The central focus of this paper is to highlight the ways in which path dependencies and increasing returns (network effects) serve to reinforce carbon lock-in in large-scale road transportation infrastructure projects. Breaking carbon lock-in requires drastic changes in the way we plan future transportation infrastructure projects, and documentary evidence presented here from the metropolitan regions of Copenhagen, Denmark and Portland, USA, indicate that there may be a discontinuity in the system of automobility (Urry, 2004), thereby increasing the likelihood that such drastic measures may in fact be successfully realized.     

Disability Considerations for Measuring Poverty in Canada Using the Market Basket Measure

Social Indicators Research - Persons with disability (PWD) in Canada experience disproportionately high poverty rates. Poverty measures are often used to benchmark income assistance levels and...     

Wealth,Race, and Mortality*

Objective. We explore, first, whether wealth relates to mortality risk independent of income and education, and second, whether wealth closes the black‐white gap in U.S. adult mortality while controlling for other socioeconomic and sociodemographic factors. Methods. We employ the Cox proportional hazards models on data from the 1992 wave of the Health and Retirement Study linked to deaths through 1998, to analyze pre‐retirement adult mortality in the United States. Results. The findings suggest that broader measures of SES, including wealth, are significant for understanding adult mortality. Further, vastly lower asset holdings among blacks, compared to whites, not only affects their financial well‐being but also their survival prospects. Conclusions. Research and social policies that aim to understand and close health disparities in the United States may be poorly conceived if they ignore the impact of wealth on premature adult mortality.     

A stress process model of family caregiver service utilization: factors associated with respite and counseling service use

This study examines whether caregivers' differential utilization of respite and counseling support services is associated with different situational stress processes. A multinomial regression analysis was conducted to compare respite users, counseling users, and those who used neither service, using data collected on a statewide random sample of 1,643 California caregivers providing assistance to individuals aged 50 or older. Compared with caregivers who used neither service, respite service users were more likely to have demanding care situations giving rise to physical symptoms of stress, and were more likely to use community services for the care recipient to augment their care. In contrast, counseling service users were more likely to be managing the meaning of their care situation by seeking out information about services and talking with a confidant about their situation, while coping with both emotional and physical symptoms of stress. Tailoring caregiver interventions to meet the support needs and coping strategies stemming from diverse caregiving situations and caregiver characteristics may increase the likelihood that those interventions will be effective in alleviating or preventing deleterious secondary stress frequently experienced by family caregivers.     

The undecidability of the spatialized prisoner's dilemma

In the spatialized Prisoner's Dilemma, players compete against their immediate neighbors and adopt a neighbor's strategy should it prove locally superior. Fields of strategies evolve in the manner of cellular automata (Nowak and May, 1993; Mar and St. Denis, 1993a,b; Grim 1995, 1996). Often a question arises as to what the eventual outcome of an initial spatial configuration of strategies will be: Will a single strategy prove triumphant in the sense of progressively conquering more and more territory without opposition, or will an equilibrium of some small number of strategies emerge? Here it is shown, for finite configurations of Prisoner's Dilemma strategies embedded in a given infinite background, that such questions are formally undecidable: there is no algorithm or effective procedure which, given a specification of a finite configuration, will in all cases tell us whether that configuration will or will not result in progressive conquest by a single strategy when embedded in the given field. The proof introduces undecidability into decision theory in three steps: by (1) outlining a class of abstract machines with familiar undecidability results, by (2) modelling these machines within a particular family of cellular automata, carrying over undecidability results for these, and finally by (3) showing that spatial configurations of Prisoner's Dilemma strategies will take the form of such cellular automata.

     

Embedding effects: Stimulus representation and response mode

Thecontingent valuation (CV) methodology assigns prices to environmental amenities by asking people how much they would be willing to pay in order to preserve or acquire those amenities. If this measurement procedure is valid, then responses should be sensitive to relevant changes in the amenities being judged and insensitive to irrelevant changes. One apparent demonstration of inappropriate insensitivity is theembedding effect: the observation that people are apparently willing to pay the same amount of money for a good as for a minor subset of that good. This study examined the possibility that the source of this effect lies with each of two (potentially treatable) methodological problems: 1) subjects have difficulty using quantitative (dollar) response modes to express their values; and 2) subjects have difficulty absorbing the essential details of the CV scenarios describing those goods. The study found that 1) subjects showed considerable embedding both with a simple paired-comparison response mode and with a more demanding one requiring direct dollar estimates; 2) embedding was much reduced with the simpler response mode; 3) subjects' preferences with the two response modes were usually inconsistent; 4) when asked to describe the CV scenario that they had just heard, subjects often reported key task details inaccurately; and 5) there was less embedding when tasks were reinterpreted in terms of the questions subjects reported having answered (as opposed to what had actually been asked). These results are discussed in terms of the match between the questions that investigators would like to ask and the ones that subjects are capable of answering.     

GLOBALISATION AND REGIONAL RENEWAL REVISTED

The articles in this forum address how the epochal process of globalisation pertains to rural and regional Australia. Collectively, they demonstrate the complexity of globalisation in rural areas in three ways. First, globalisation is a multi‐faceted phenomenon involving more issues than the fluxion of economy and polity around “free” trade. It simultaneously effects and incites ethical and practical reactions concerning national boundaries, environment, community, health, wealth, language and essentially all other matters with social valence. Second, globalisation has diverse and differential impacts both between the developed and developing nations and within them. Third, globalisation has generated collective angst and organised protest. Taken as a whole, these papers simultaneously illustrate theoretically abstract and privately mundane aspects of globalisation.