全文获取类型
收费全文 | 4581篇 |
免费 | 78篇 |
专业分类
管理学 | 679篇 |
民族学 | 26篇 |
人才学 | 1篇 |
人口学 | 454篇 |
丛书文集 | 39篇 |
教育普及 | 1篇 |
理论方法论 | 539篇 |
综合类 | 51篇 |
社会学 | 2321篇 |
统计学 | 548篇 |
出版年
2021年 | 28篇 |
2020年 | 60篇 |
2019年 | 78篇 |
2018年 | 80篇 |
2017年 | 130篇 |
2016年 | 100篇 |
2015年 | 74篇 |
2014年 | 82篇 |
2013年 | 777篇 |
2012年 | 141篇 |
2011年 | 168篇 |
2010年 | 109篇 |
2009年 | 133篇 |
2008年 | 146篇 |
2007年 | 144篇 |
2006年 | 158篇 |
2005年 | 142篇 |
2004年 | 131篇 |
2003年 | 122篇 |
2002年 | 130篇 |
2001年 | 88篇 |
2000年 | 95篇 |
1999年 | 85篇 |
1998年 | 67篇 |
1997年 | 71篇 |
1996年 | 90篇 |
1995年 | 66篇 |
1994年 | 64篇 |
1993年 | 59篇 |
1992年 | 61篇 |
1991年 | 58篇 |
1990年 | 53篇 |
1989年 | 63篇 |
1988年 | 45篇 |
1987年 | 42篇 |
1986年 | 59篇 |
1985年 | 58篇 |
1984年 | 57篇 |
1983年 | 45篇 |
1982年 | 36篇 |
1981年 | 43篇 |
1980年 | 38篇 |
1979年 | 47篇 |
1978年 | 43篇 |
1977年 | 34篇 |
1976年 | 40篇 |
1975年 | 40篇 |
1974年 | 28篇 |
1972年 | 17篇 |
1971年 | 26篇 |
排序方式: 共有4659条查询结果,搜索用时 15 毫秒
131.
132.
Using confidential microdata from the US Census Bureau, we investigate the performance of Asian-owned businesses. Using regression
estimates and a special non-linear decomposition technique, we explore the role that class resources, such as financial capital
and human capital, play in contributing to the relative success of Asian businesses. We find that Asian-owned businesses are
more successful than white-owned businesses for two main reasons—Asian owners have high levels of human capital and their
businesses have substantial start-up capital. Using detailed information on both the owner and the firm, we estimate the explanatory
power of several additional factors.
相似文献
Robert W. Fairlie (Corresponding author)Email: |
133.
Robert D. Crutchfield Martie L. Skinner Kevin P. Haggerty Anne McGlynn Richard F. Catalano 《Race and social problems》2009,1(4):218-230
Criminologists have long reported the existence of racial disparity in the criminal justice system, but the important question
is why. While some argue that observed differences are a consequence of more criminal behavior among minorities, the weight
of the evidence indicates that this is but a partial explanation. In this paper, we study data from a sample of juveniles
to examine how racial differences in early police contact, and important social environments—family, school, and neighborhoods—affect
later contact and arrests, controlling for self-reported delinquency. We find that early (in middle school) contact with police
is an important predictor of later (high school) arrests. Also we found that, in addition to being male and living in a low-income
family, children who have parents who have a history of arrest, who have experienced school disciplinary actions, who have
delinquent peers, and who are in networks with deviant adults are more likely to have problems with law enforcement. These
factors help to explain racial differences in police contacts and arrests. 相似文献
134.
Family involvement in corporate governance through ownership, management, and board membership presents a unique dilemma for understanding the strategic impetus and costs of entrenchment decisions. The presence of shared family ties and the family-centered goals of firm principals call to question the applicability of extant agency arguments regarding the nature and antecedents of managerial entrenchment. Exploring this, we develop and test a model of family firm-specific determinants (i.e., family ownership and family's involvement in management and governance) of entrenchment in publicly traded firms by drawing upon principal-principal agency theory. Findings of the empirical analysis of family owned S&P 500 firms suggest family firms are motivated to entrench managers when doing so supports the pursuit of family-centric goals. However, the extent to which entrenchment supports such goals varies at different levels of family ownership. 相似文献
135.
Elizabeth Ackert Robert Ressler Robert Crosnoe 《Journal of marriage and the family》2018,80(5):1210-1224
Integrating family and child data from the Early Childhood Longitudinal Study–Birth Cohort with contextual data from the census, this study examined associations among maternal employment, aspects of communities related to child‐care supply and demand, and the early care and education arrangements of 4 year olds in Mexican‐origin, Black, and White families. Children with employed mothers were more likely to be in informal care arrangements than in early childhood education, regardless of racial/ethnic background. For children in Mexican‐origin families, selection into informal care over early childhood education was more likely in zip codes with greater demand for care as measured by higher female employment. Utilization of parent care versus early childhood education was also more likely for children in Mexican‐origin and Black families in zip codes with higher female employment. Constraints associated with maternal employment thus hindered children from enrolling in early childhood education, and community contexts posed challenges for some groups. 相似文献
136.
Robert Schoen Nancy S. Landale Kimberly Daniels Yen‐Hsin Alice Cheng 《Journal of marriage and the family》2009,71(2):384-395
Social background has historically been recognized as a major factor influencing family behavior, though recent work has largely emphasized racial/ethnic influences. Here we use 1994 – 1995 and 2001 – 2002 Add Health data to examine the cohabitation, first marriage, and first birth experience of young women. In a multistate life table context, hypothetical cohorts specified in terms of race and mother’s education are followed, from age 11 to age 24, as they move through 6 family‐related statuses. The results indicate that, for both Black and White women, a higher level of maternal education is generally associated with less cohabitation, less marriage, fewer first births, and a higher percentage of women who experience none of those transitions before age 24. Racial and social background differences are conceptually and empirically distinct. Because mother’s education is associated with substantially different trajectories of early family behavior for both Blacks and Whites, we argue that social background merits increased attention in research on contemporary American family patterns. 相似文献
137.
We consider the fraction of pairs of m distinct alternatives on which a social welfare function f may be nondictatorially independent and Pareto when the domain of f satisfies the free k-tuple property. When k = 4 we improve the existing upper bound to . When there are at least 26 alternatives and we obtain an original upper bound, . To obtain these results we define and analyze the graph formed from the nondictatorial independent and Pareto pairs and
combine the results of this analysis with known results from extremal graph theory.
The authors extend special thanks to the two reviewers and the editor for their comments. 相似文献
138.
Kevin R. Kelly Ae‐Jung Chang Gunsalus Robert Gunsalus 《The Career development quarterly》2009,58(1):14-28
Limited empirical study of the career development of Asian Americans in general and Korean Americans in particular has been conducted. The authors present the results of a theory‐based exploration of the career goals of Korean American university students in which ethnic identity, self‐efficacy, outcome expectations, and career interests were used to predict goal intentions for science and nonscience careers. Outcome expectations and career interests predicted a moderate amount of variance in science career goal intentions and a moderate to large amount of variance in nonscience career goal intentions. Korean American students' career goal development seems similar to that of American college students. 相似文献
139.
This study examined the ways in which cultural orientation (communalism and material well‐being) and empathy influence the moral reasoning of African American middle to late adolescents. Specifically, this study utilized path analysis to investigate Ward's (1995) hypothesis that a communal orientation would promote morality among African American adolescents, while a material well‐being orientation would mitigate against it. In addition, it was hypothesized that empathy would mediate the relationship between cultural orientation and moral reasoning. Thirty‐seven high school students and 35 college students participated in the study. Results revealed that communalism was a significant predictor of empathy. Despite prediction, communalism and material well‐being were not predictors of moral reasoning. The findings did not yield support for empathy functioning as a mediator between communalism and moral reasoning. These findings are discussed in terms of previous findings, methodological limitations, and implications for future research. 相似文献
140.