The Politics of Air Bag Safety: A Competition Among Problem Definitions

In light of 121 deaths attributed to air bag deployments, mainly to children and adults of small stature, recent policy debate has focused on modifying current Federal automotive air bag regulations. A problem definition perspective is employed to understand the nature of this debate. Utilizing a content analysis of the official record of one U.S. House and two U. S. Senate hearings, it is argued that four problem definitions characterize the debate over air bag safety: behavioral, regulatory, technological, and corporate greed. Furthermore, it is argued that a problem definition perspective offers a better explanation of recent changes to Federal air bag regulations than do pluralist, elitist, and principal-agent models.     

Animal Disease Challenges to the Emergence of Pastoralism in Sub-Saharan Africa

Despite the antiquity of domestic cattle in the Sahara-Sahel, archaeological evidence from two sub-Saharan regions indicates that the first pastoralist colonization of sub-Saharan Africa may not have proceeded so smoothly as modern appearances suggest. The first appearance of cattle-based economies seems to have been delayed by as much as a thousand years after the first appearance of small stock, in both eastern and southern Africa. This article reviews the relevant archaeological evidence and argues that the lag in successful introduction of cattle stems from new animal diseases encountered by pastoral colonists entering biogeographic zones south of the Sahel. Diseases that are often fatal to cattle, including wildebeest-derived malignant catarrhal fever (WD-MCF), East Coast fever (ECF), foot-and-mouth disease (FMD), and Rift Valley fever (RVF), as well as trypanosomiasis, are described as probable barriers to the early entry of cattle-based economies into these regions.Malgré l'antiquité des animaux domestiques dans le Sahara-Sahel, les données archéologique de deux régions subsahariennes indiquent que les premières colonisations pastoraux des zones au sud du Sahel ne se propagèrent pas aussi promptement que suggèrent les apparences actuelles. En l'Afrique orientale et en l'Afrique du sud, l'apparition d'économies basées sur l'élevage des gros bovins paraît être retardée de quelque mille ans par rapport à l'apparition des petits ruminants domestiques dans ces mêmes régions. L'article recense les données archéologiques pertinentes et propose que le délai de l'introduction effective des gros bovins fût causée par des nouvelles maladies vétérinaires rencontrées par les premiers colonisateurs pastoraux entrant dans les zones biogéographiques au sud du Sahel. Des maladies fréquemment fatales aux gros bovins, telle que le coryza gangreneux, la thèleriose, la fièvre aphteuse, l'arbovirus des Bunyaviridae, aussi bien que la trypanosomiase, sont proposées comme des obstacles probables à la diffusion des économies à gros bovins dans ces régions.     

Integrating Transportation Network and Regional Economic Models to Estimate the Costs of a Large Urban Earthquake

In this paper we summarize an integrated, operational model of losses due to earthquake impacts on transportation and industrial capacity, and how these losses affect the metropolitan economy. The procedure advances the information provided by transportation and activity system analysis techniques in ways that help capture the most important ecomonic implications of earthquakes. Network costs and origin-destination requirements are modeled endogenously and consistently. Indirect and induced losses associated with direct impacts on transportation and industrial capacity are distributed across zones and ecomonic sectors. Preliminary results are summarized for a magnitude 7.1 earthquake on the Elysian Park blind thrust fault in Los Angeles.     

Whose Ethics? Which Cultural Contract? Imagining Arrernte Traditions Today

The paper uses an account of ‘tradition’ by the philosopher, Alisdair MacIntyre, to argue for the view that local Aboriginal culture that has been through extensive change is nonetheless still specifying for the Aboriginal people involved. Therefore these local traditions must be taken into account in discussions about ‘contracts’ or ‘policies’ concerning Aboriginal people today. An example is drawn from the Lutheran tradition of Western Arrernte people in Central Australia.     

Intervention publique sur le développement de grappes industrielles au Québec

This article describes the conditions for the development of four industrial clusters and the mechanisms of their integration in the regional economy. The case studies are the aerospace and apparel clusters in Montreal, and the agri‐food and marine science and technology clusters in the Lower St. Lawrence region. Clusters are defined as arrangements of businesses, government actors, public authorities, and local intermediary organizations in a local area. However, the study shows that clusters are based on actors and processes operating at different scales, from the local to the global. It also shows the importance of the sectoral leadership acknowledged by the different stakeholders.