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Data from the US Census of Agriculture suggest important changes since 1978 in regional patterns of farmland values. This study examines these patterns with the aid of county-level maps showing average values per hectare for the Census years 1978, 1982, 1987 and 1992 and changes between these years. Farmland price increases are geographically associated with general proximity to major population centers and the presence of aesthetically attractive natural landscapes, while these two attributes in combination are generally absent in areas not experiencing price increases. The widespread phenomenon of non-commercial farming as a factor in farmland price increases is examined. It is hypothesized that such site factors as climate and soils which traditionally have helped explain higher farmland prices in some regions are of diminishing importance, while situational factors such as proximity to major population centers are in the ascendancy. The changing importance of site versus situational factors is assessed using analysis of variance tests comparing the influence on farmland values of the predominately situational differences between metropolitan, nonmetropolitan-adjacent and nonmetropolitan-nonadjacent settings, versus the predominately site differences between major agricultural regions.  相似文献   

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Previous studies of stratification in science have found a consistent positive correlation between the prestige of the departments where scientists received their degrees and the prestige of the departments where they obtained jobs, especially their first jobs. This correlation held regardless of previous research performance. Two limitations associated with these studies are (1) their almost exclusive focus on the hard sciences, and (2) their inability to inform a theoretical comparison between the hard and soft sciences. This study uses data on new sociology Ph.D.s who obtained their first job in Ph.D.-granting departments between 1985 and 1992 in order to assess whether the stratifying mechanisms in the hiring of sociologists are similar to those in the hard sciences. The results are generally consistent with previous findings for the hard sciences and suggest that job placement in sociology values academic origins over performance. The two strongest determinants of the prestige of a first job are the prestige of the Ph.D.-granting department and the selectivity of the undergraduate institution. In contrast, the effects of predoctorate single- or first-authored publications and of mentor's recognition are weak, though significant.  相似文献   

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The growth and proliferation of sociological immigration research has garnered sufficient attention to warrant a review and evaluation of the development of the field. This study took the first step by collecting detailed information about work published in the area of immigration research from major journals between 1990 and 2004. We explored three major areas: research topics addressed, theoretical frameworks employed, and population groups studied in the published literature. We compared the development of the field in the United States and Canada. The studies reveal several important patterns in the sociological publications of the United States and Canada. First, the topics studied and population groups included in the sociological publications on immigration are closely associated with the demographic and immigrant integration context of the country. Second, the publications as a whole show that in the development of immigration literature, researchers in the field are engaging in the general sociological theoretical discussion.  相似文献   

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The two dominant labor market turnover hypotheses, the firm-specific human capital model (FSHCM) and the job-matching model, suggest different patterns of player mobility in major league baseball. The matching hypothesis predicts greater mobility of players in positions that require substantial team production. A better match may offer large productivity gains. Alternately, the FSHCM predicts players in positions requiring the greatest amount of teamwork will benefit from specific knowledge, making them less likely to change teams. We examine the frequency distribution of trades by player position from 1900–1992 and find the FSHCM provides the best explanation for turnover in this industry.  相似文献   

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The standardization of measurements of length, mass, temperature, etc is a central part of the process of modernization and rationalization described by Weber. However, attempts by businessmen, scientists and bureaucrats to reform the calendar, as a rationalizing measure and to improve economic efficiency, have been thwarted by religious minorities. Curiously, the religious opposition is rooted in material interests, in contrast to the ideal interests of the calendar reformers. The argument that calendar reform is contrary to religious liberty is shown to be confused. Durkheim's concepts of mechanical and organic solidarity are then used to clarify the nature of the issues involved.  相似文献   

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