全文获取类型
收费全文 | 18876篇 |
免费 | 364篇 |
国内免费 | 15篇 |
专业分类
管理学 | 2433篇 |
民族学 | 109篇 |
人才学 | 3篇 |
人口学 | 1676篇 |
丛书文集 | 179篇 |
理论方法论 | 1895篇 |
综合类 | 744篇 |
社会学 | 9875篇 |
统计学 | 2341篇 |
出版年
2023年 | 92篇 |
2021年 | 124篇 |
2020年 | 291篇 |
2019年 | 357篇 |
2018年 | 419篇 |
2017年 | 612篇 |
2016年 | 464篇 |
2015年 | 363篇 |
2014年 | 457篇 |
2013年 | 2978篇 |
2012年 | 651篇 |
2011年 | 623篇 |
2010年 | 524篇 |
2009年 | 475篇 |
2008年 | 561篇 |
2007年 | 575篇 |
2006年 | 570篇 |
2005年 | 554篇 |
2004年 | 491篇 |
2003年 | 436篇 |
2002年 | 452篇 |
2001年 | 485篇 |
2000年 | 402篇 |
1999年 | 403篇 |
1998年 | 308篇 |
1997年 | 264篇 |
1996年 | 245篇 |
1995年 | 263篇 |
1994年 | 239篇 |
1993年 | 257篇 |
1992年 | 260篇 |
1991年 | 270篇 |
1990年 | 244篇 |
1989年 | 220篇 |
1988年 | 238篇 |
1987年 | 244篇 |
1986年 | 197篇 |
1985年 | 219篇 |
1984年 | 232篇 |
1983年 | 205篇 |
1982年 | 210篇 |
1981年 | 171篇 |
1980年 | 157篇 |
1979年 | 167篇 |
1978年 | 133篇 |
1977年 | 125篇 |
1976年 | 136篇 |
1975年 | 150篇 |
1974年 | 115篇 |
1973年 | 85篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
71.
We analyze the wealth ejfects of the Texaco racial discrimination lawsuit both on the shareholders of Texaco and its major
U.S. competitors. Employing a comprehensive data set which included every case docket entry and every Wall Street Journal
article on the case as an experimental stimulus, our findings suggest that the overall cost of the case to Texaco shareholders
exceeded $500 million, that Texaco's tribulations had little, if any, impact on the share prices of its major competitors,
and that Wall Street Journal coverage of the case was highly correlated with significant changes in Texaco stock prices. This
last finding provides significant support for Hite 's suppostion that newspaper editors “key ” on ex post stock price changes
in selecting the events to be covered in the next day's edition.
The authors are grateful to Kee Chung for helpful comments on earlier drafts and also acknowlege the help-ful assistance of
the staff of the law library at the Cecil C. Humphreys School of Law at The University of Memphis. 相似文献
72.
Schervish Paul G. Havens John J. 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2002,13(1):47-71
This paper describes the theoretical foundations, empirical findings, and practical and philosophical implications of the Boston Area Diary Study (BADS), a study of the caring behavior of 44 participants over one calendar year. In particular, the paper presents an identification theory of care and discusses how it shaped the conceptualization, collection, and analysis of the data in a year-long diary study of daily voluntary assistance. The findings from the BADS (1) theoretically confirm the identification theory of care; (2) methodologically capture how individuals perceive and carry out caring behavior as a unity; and (3rpar; empirically document the existence of a moral citizenship in America that is substantially more vigorous than is implied by the usual indicators of civic and political citizenship. 相似文献
73.
John DeFrain 《Journal of marital and family therapy》1991,17(3):215-232
Family therapists can learn a great deal that would be of utility to them in their clinical work from normal families grieving over the death of an infant. When a baby dies, families begin a long and difficult journey, a search for security and meaning in a world that for them has gone insane. The researcher discusses 10 probing, extremely difficult questions family members commonly pose in the aftermath of an infant death and offers guidelines that could be helpful to family therapists hoping to be of service to families in the process of healing and growing through this tragedy. 相似文献
74.
John A. Eccleston Deborah J. Street 《Australian & New Zealand Journal of Statistics》1994,36(3):371-378
This paper presents an algorithm for the construction of optimal or near optimal change-over designs for arbitrary numbers of treatments, periods and units. Previous research on optimality has been either theoretical or has resulted in limited tabulations of small optimal designs. The algorithm consists of a number of steps:first find an optimal direct treatment effects design, ignoring residual effects, and then optimise this class of designs with respect to residual effects. Poor designs are avoided by judicious application of the (M, S)-optimality criterion, and modifications of it, to appropriate matrices. The performance of the algorithm is illustrated by examples. 相似文献
75.
This article compares in regression models the effects of occupational status of both fathers and mothers simultaneously upon the attainment of men and women in the Irish Republic. The sample matches male respondents from the 1973/1974 Irish Mobility Study with the labour active female sibling next closest in age. Since the analysis compares working siblings and each 'matched pair' shares the same family origin characteristics, the problems attendant upon using a sample originally of men only are partially avoided. The results advance beyond previous research since, rather than separate models by gender, models include parents and children of both genders, allowing direct rather than indirect evaluation of gender-based determinants of occupational attainment. Both fathers and mothers significantly affect children's attainment, in ways that vary by the child's gender. The results highlight the salience of mothers' attainment for their children and question the 'mainstream' model of equivalent mechanisms of occupational attainment for both genders. Models of social mobility that consider men and women as special instances of a general perspective provide the most fruitful approach for further development. 相似文献
76.
77.
78.
UNDERSTANDING MAIL SURVEY RESPONSE BEHAVIOR A META-ANALYSIS 总被引:5,自引:0,他引:5
YAMMARINO FRANCIS J.; SKINNER STEVEN J.; CHILDERS TERRY L. 《Public opinion quarterly》1991,55(4):613-639
A meta-analysis of prior studies of techniques designed to inducemail survey response rates was conducted. Research encompassing184 effects (study outcomes) in 115 studies (articles) for 17predictors of response rate was examined. The average effectsize across all manipulations was r=.065, indicating an averageincrease of about 6.5 percent in response rates for manipulations.Effect sizes for specific predictors and two potential moderatorsof effects were examined. Results indicated that repeated contactsin the form of preliminary notification and follow-ups, appeals,inclusion of a return envelope, postage, and monetary incentives,were effective in increasing survey response rates. Significanteffect sizes for the predictors ranged from an increase in responseof 2 percent to 31 percent. Implications of the results forthe conduct of mail surveys and future research on mail surveyresponse behavior are discussed. 相似文献
79.
The importance of client beliefs in career counseling depends on their ability to add unique information about the client over and above that contributed by aptitudes and interests. The Career Beliefs Inventory was administered to 200 Australian students in grade 10 together with measures of Holland's RIASEC interest themes and scholastic aptitudes. The correlations between scales from the three domains showed clearly that beliefs made a contribution distinct from that provided by aptitudes and interests. Even though the results may reflect possible sampling or method variance, career beliefs in this sample added unique information to that traditionally used in career counseling. 相似文献
80.
John E. Roemer 《Social Choice and Welfare》1994,11(4):355-380
Voter preferences are characterized by a parameter s (say, income) distributed on a set S according to a probability measure F. There is a single issue (say, a tax rate) whose level, b, is to be politically decided. There are two parties, each of which is a perfect agent of some constituency of voters, voters with a given value of s. An equilibrium of the electoral game is a pair of policies, b 1 and b 2, proposed by the two parties, such that b i maximizes the expected utility of the voters whom party i represents, given the policy proposed by the opposition. Under reasonable assumptions, the unique electoral equilibrium consists in both parties proposing the favorite policy of the median voter. What theory can explain why, historically, we observe electoral equilibria where the ‘right’ and ‘left’ parties propose different policies? Uncertainty concerning the distribution of voters is introduced. Let {F(t)} t ε T be a class of probability measures on S; all voters and parties share a common prior that the distribution of t is described by a probability measure H on T. If H has finite support, there is in general no electoral equilibrium. However, if H is continuous, then electoral equilibrium generally exists, and in equilibrium the parties propose different policies. Convergence of equilibrium to median voter politics is proved as uncertainty about the distribution of voter traits becomes small. 相似文献