全文获取类型
收费全文 | 247篇 |
免费 | 2篇 |
专业分类
管理学 | 22篇 |
理论方法论 | 21篇 |
综合类 | 4篇 |
社会学 | 195篇 |
统计学 | 7篇 |
出版年
2016年 | 1篇 |
2015年 | 1篇 |
2014年 | 4篇 |
2013年 | 8篇 |
2012年 | 6篇 |
2011年 | 2篇 |
2010年 | 6篇 |
2009年 | 5篇 |
2008年 | 10篇 |
2007年 | 7篇 |
2006年 | 8篇 |
2005年 | 4篇 |
2004年 | 1篇 |
2003年 | 3篇 |
2002年 | 3篇 |
2001年 | 2篇 |
1998年 | 6篇 |
1997年 | 5篇 |
1996年 | 1篇 |
1995年 | 5篇 |
1994年 | 2篇 |
1993年 | 5篇 |
1992年 | 10篇 |
1991年 | 2篇 |
1990年 | 5篇 |
1989年 | 3篇 |
1988年 | 3篇 |
1987年 | 10篇 |
1986年 | 9篇 |
1985年 | 7篇 |
1984年 | 11篇 |
1983年 | 6篇 |
1982年 | 6篇 |
1981年 | 5篇 |
1980年 | 11篇 |
1979年 | 10篇 |
1978年 | 8篇 |
1977年 | 9篇 |
1976年 | 6篇 |
1975年 | 6篇 |
1974年 | 4篇 |
1973年 | 4篇 |
1972年 | 1篇 |
1971年 | 5篇 |
1970年 | 1篇 |
1968年 | 4篇 |
1967年 | 6篇 |
1966年 | 1篇 |
1961年 | 1篇 |
排序方式: 共有249条查询结果,搜索用时 687 毫秒
151.
This paper describes a heuristic which produces efficient makespans for resource-constrained scheduling problems with parallel processing capabilities. This heuristic was initially developed for the scheduling of army battalion training exercises. The original heuristic has also been successfully applied to solve problems in project scheduling with limited resources, generalized job shop scheduling, and resource-constrained scheduling. The exchange heuristic requires an initial feasible solution upon which it improves the makespan by efficiently and systematically shuffling activities while maintaining feasibility. The method has recently been modified twice, termed the intelligent version and naive version, respectively, such that its ability to reduce the initial makespan is enhanced. In this study 相似文献
152.
ON THE NATURE OF RECIPROCAL MOTIVES 总被引:8,自引:0,他引:8
Data from 692 subjects in 11 experimental treatments provide a systematic exploration of the existence and nature of reciprocal behavior in two-person games. The experimental design discriminates between motivations of reciprocity and (nonreciprocal) other-regarding preferences. The existence of positive reciprocity is found to be dependent on the level of social distance but not the level of monetary payoff. The larger context in which a decision is made is found to have a significant effect on negative reciprocity. These findings on payoff levels, social distance, decision context, and reciprocity have implications for both theoretical modeling and experimental design. (JEL C70 , C91 , D63 , D64 ) 相似文献
153.
Conjugacy as a Distinctive Feature of the Dirichlet Process 总被引:1,自引:1,他引:0
LANCELOT F. JAMES ANTONIO LIJOI IGOR PRÜNSTER 《Scandinavian Journal of Statistics》2006,33(1):105-120
Abstract. Recently the class of normalized random measures with independent increments, which contains the Dirichlet process as a particular case, has been introduced. Here a new technique for deriving moments of these random probability measures is proposed. It is shown that, a priori , most of the appealing properties featured by the Dirichlet process are preserved. When passing to posterior computations, we obtain a characterization of the Dirichlet process as the only conjugate member of the whole class of normalized random measures with independent increments. 相似文献
154.
WHEN ARE WOMEN MORE GENEROUS THAN MEN? 总被引:4,自引:0,他引:4
Previous research on gender differences in behavior has led to seemingly contradictory findings about generosity. From data generated by 290 subject pairs, we find that women are more sensitive than men to the costs of generous actions when deciding whether to be generous. The factors that affect the level of generosity observed in our experiments are reciprocal motivation, the level of money payoffs, and the level of social distance in the experimental protocol. The relatively greater sensitivity of women to the costs of generous behavior can explain most of the apparent inconsistencies in previously reported findings. (JEL C70 , C91 , D63 , D64 ) 相似文献
155.
156.
This article exploits a natural experiment initiated by Oregon and Washington voter referendums to show that the minimum wage is a blunt instrument that differentially affects low-wage workers within and across industries. Specifically, employment growth specifications indicate that the minimum wage generates consistently negative employment effects for eating and drinking workers where the minimum is shown to be relatively binding, but not for hotel and lodging workers where the minimum is less binding. Regressions using job-specific want-ad data from Portland and Seattle newspapers also indicate a reduction in hiring solicitation relating to the extent that the minimum wage binds. ( JEL J31, J38) 相似文献
157.
158.
Ceci est le compte rendu d'une analyse de données déjà recueillies résultant d'une étude nationale sur la qualité de la vie (Quality of life study, 1977) qui compare les attitudes des Canadiens anglais et des Québécois face au multiculturalisme. Nous avons mis à l'épreuve 5 prédictions basées sur l'hypothèse de la classe ethnique; 4 se sont avérées sans fondement. La question du revenu par exemple, avail les mêmes types de rapports avec les attitudes multiculturelles chez les groupes des deux langues; et ces rapports n'étaient pas moins marqués parmi les Québécois, tel que prédit par l'hypothèse de la classe ethnique. Cependant l'attitude des Québécois a été plus négative envers les cultures minoritaires et la valeur de la contribution qu'apportent les immigrants à la société canadienne. Ils ont étéégalement plus enclins à l'idée de limiter l'immigration en général, et en particulier l'immigration des pays de langue anglaise et de l'Italie. D'autre part, les résultats ont démontré une plus grande opposition parmi les Canadiens anglophones aux immigrants venant de l'Inde, du Pakistan, et des Antilles. Nous terminons avec quelques observations sur les orientations différentielles face au multiculturalisme dans les deux communautés. We report on a secondary analysis of national survey data (Quality of Life Study, 1977) comparing the multicultural attitudes of English-Canadians (N = 1593) and Québécois (N = 674). We tested five predictions based on the ethnic-class hypothesis and found no support for four of them. For example, income had similar types of relationships with multicultural attitudes in each language group; these relationships were not less marked among the Québécois, as predicted by the ethnic-class hypothesis. The Québécois were, however, more negative toward minority cultures and the value of immigrants' contributions to Canadian society. They were also more disposed to limit immigration in general, and more specifically, immigration from English-speaking nations and Italy. Set against these results were the findings of greater opposition among English-speaking Canadians to immigrants from India, Pakistan and the West Indies. We conclude with some observations on the alternative orientations to multiculturalism in the two communities. 相似文献
159.
Lenders are assumed to use formal credit scoring schemes in order to evaluate borrower credit worthiness. Variables used in these schemes may be measured with error resulting in credit scores which include the effects of biased parameter estimates, and in lending decisions that appear to be discriminatory although lenders are not prejudiced. Regulations which restrict the information used in credit scoring schemes may produce undesirable credit supply results. Theoretical models are supplemented with illustrative empirical analysis of mortgage lending in which use of information on property location is prohibited. The empirical results indicate that the quantitative impact of such regulations is modest. 相似文献
160.
Recent discussions of antitrust based on the private interest theory of government conclude that the real, as opposed to the stated, purpose of antitrust legislation is to protect politically influential industries against competition. Yet several prominent antitrust scholars who accept the private interest theory of government in general see antitrust legislation serving the public interest by increasing competition. We argue that the private interest theory of government is consistent with the view that antitrust legislation promotes competition. Indeed antitrust legislation may be supported by organized interest groups because such legislation increases the competition they face. 相似文献