Molecular evidence of bitumen in the Mousterian lithic assemblage of Hummal (Central Syria)

Evidence for bitumen use in Middle Palaeolithic sites is an exception in Pleistocene archaeology. This paper presents the discovery of three tar-bearing Levallois artefacts found in the Mousterian sequence in Hummal (Central Syria). The organic residues were submitted to geochemical study. Gas chromatography–mass spectrometry analyses of saturated and aromatic hydrocarbons and isotopic data show the presence of bitumen. The most likely location of natural asphalt provisioning is the Shaaf outcrop in the Bichri desert. The bitumen-bearing stone tools add further important data to the growing knowledge about bitumen processing in the Middle Palaeolithic spring sites of El Kowm. Identification of the provisioning place for natural asphalt enables a more precise assumption about the site's catchment area. From a technological point of view, the tar-bearing specimens provide information on the range of tool forms selected for hafting. Ballistic features arguably indicate that the pointed Levallois blanks seem to be spear points that were fitted to a wooden handle. In at least one case, this technical procedure was seemingly executed during a brief episode of occupation and replacement of worn out implements. This small, bracketed window of detailed insight into Mousterian technology is linked with the more general relationship between Levallois technology and stone tool hafting.     

ON THE IMPACT OF LABOR MARKET MATCHING ON REGIONAL DISPARITIES*

ABSTRACT We propose a model where imperfect matching between firms and workers on local labor markets leads to incentives for spatial agglomeration. We show that the occurrence of spatial agglomeration depends on initial size differences in terms of both number of workers and firms. Allowing for dynamics of workers' and firms' location choices, we show that the spatial outcome depends crucially on different dimensions of agents' mobility. The effect of a higher level of human capital on regional disparities depends on whether it makes workers more mobile or more specialized on the labor market.     

SPATIAL MOBILITY AND RETURNS TO EDUCATION: SOME EVIDENCE FROM A SAMPLE OF FRENCH YOUTH*

ABSTRACT This study re‐evaluates the returns to geographic mobility and to the level of education taking into account the interaction between these two variables, and using the distance covered as a proxy for migration costs. We have at our disposal an original French database that permits precise calculation of the distance between the place of education and the location of first employment. For men, we find decreasing returns to spatial mobility as the distance covered rises and increasing returns to mobility with higher levels of education. The marginal returns to spatial mobility for women are lower across the board.     

Ethnic nationalism,evolutionary psychology and Genetic Similarity Theory*

Abstract. Genetic Similarity Theory extends Anthony D. Smith's theory of ethno‐symbolism by anchoring ethnic nepotism in the evolutionary psychology of altruism. Altruism toward kin and similar others evolved in order to help replicate shared genes. Since ethnic groups are repositories of shared genes, xenophobia is the ‘dark side’ of human altruism. A review of the literature demonstrates the pull of genetic similarity in dyads such as marriage partners and friendships, and even large groups, both national and international. The evidence that genes incline people to prefer others who are genetically similar to themselves comes from studies of social assortment, differential heritabilities, the comparison of identical and fraternal twins, blood tests, and family bereavements. DNA sequencing studies confirm some origin myths and disconfirm others; they also show that in comparison to the total genetic variance around the world, random co‐ethnics are related to each other on the order of first cousins.     

Relire un Essai Wébérien Méconnu Motifs et obstacles

Sans résumé Philippe Despoix enseigne la littérature comparée à l’université de Montréal où il dirige le Centre canadien d’études allemandes et européennes. Ses recherches portent sur la fonction des médias techniques dans les processus mémoriels et de transferts interculturels. Il a notamment publié éthiques du désenchantement (Paris, L’Harmattan, 1995) et Le Monde mesuré (Genève, Droz, 2005). Nicolas Donin est chercheur en musicologie à l’Ircam, où il dirige l’équipe ? Analyse des pratiques musicales ?. Ses travaux portent sur les œuvres, les pratiques et esthétiques musicales savantes. Il a notamment codirigé, avec Bernard Stiegler, Révolutions industrielles de la musique, numéro spécial des Cahiers de médiologie (n^o 18, 2004). L’Analyse musicale, une pratique et son histoire, ouvrage réalisé en collaboration avec Rémy Campos, est à para?tre (Genève, Conservatoire de Genève/Droz).     

Governing Paris—Planning and Political Conflict in Île-de-France

In this paper we examine some of the major planning challenges facing the Paris region and we locate these in the context of problems of institutional coordination and cooperation. Finding the right institutions for metropolitan governance is a challenge for most of Europe's large cities. Our approach to the Paris region emphasizes the need to understand the evolution of institutions of governance and the struggles between political actors around these institutional legacies. Political competition motivates key actors in the multi-level governance of the region. We examine the struggle to develop new social housing and conflicts around transport policy in Paris. Political conflict and different perspectives on regional planning stand in the way of solutions to current problems. In the final part of the paper we discuss how potential political and institutional solutions might develop.