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Susan Larson 《Romance Quarterly》2013,60(3):111-113
This introduction to this special issue of the Romance Quarterly reflects on the work of Aníbal Biglieri as he steps down as Executive Editor of the journal, as well as his research achievements and many contributions to the lives of his students. 相似文献
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Bartik's (1991, 1993) approach to identifying shocks in demand to regional economies has been used extensively for nearly 30 years. We chronicle the development of Bartik-type shift-share instruments and examine the empirical performance of alternative versions that use different combinations of national shift and local share variables in their construction. We offer three main findings. First, instruments constructed from shares that omit employment in nontraded sectors empirically dominate versions that include total employment. Second, industrial sectors with high average shares and low variation across areas are more likely to be nontraded and endogenous. This suggests placing large weights on nontraded sector shares worsens both relevance and potential endogeneity. Finally, we demonstrate national shifters other than employment, such as prices and wages, can be used to construct instruments with unique and relevant explanatory power. 相似文献
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James Haile Greger Larson Kimberley Owens Keith Dobney Beth Shapiro 《Journal of archaeological science》2010
The recent increase in both the abundance and taxonomic range of DNA sequence data in public repositories makes it possible to determine the maternal origin of lineages of faunal archaeological material by characterizing its mitochondrial DNA. Among the most commonly represented taxa are domesticated animals, for which extensive genetic characterization has revealed high levels of genetic diversity and (in at least some cases) strong phylogeographic clustering. Such information has significant implications not only for characterizing important aspects of the occupation history of archaeological sites, but also in providing novel insights into colonisation history and the scale and scope of trade and exchange networks. This can be done through studying the origins and dispersal of proxy organisms such as commensal and domesticated animals, as well as economically important wild fauna. To illustrate this approach, we compare historical records of maritime movement of people and pigs from two sites on Lord Howe Island, Australia, to phylogeographic results of DNA extracted from pig bones. 相似文献
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This study adapts Timothy Cook's 1986 analysis of news coverage of members of Congress to women legislators. The relative impact of independent variables on the amount of television news coverage received by women in the House from 1987 to 1998 was determined using Poisson regression. These included structural variables (leadership, seniority, party control of the chamber, and membership on a prestigious committee), member characteristics (racial minority status, media market size, party and attractiveness), and member activities (legislative activity, ideology, scandal, authorship of women's bills, and running for higher office). Factors that were significantly related to the amount of coverage received by a congresswoman were: authorship of women's bills, running for higher office, media market size, political party, and seniority. Leadership did not have the same payoff for women's visibility that it did for the largely male group of legislators in Cook's study. Authoring a large number of pieces of legislation did not enhance women's coverage, but authoring bills on women's issues did. 相似文献