全文获取类型
收费全文 | 2793篇 |
免费 | 131篇 |
专业分类
各国政治 | 162篇 |
工人农民 | 213篇 |
世界政治 | 213篇 |
外交国际关系 | 160篇 |
法律 | 1348篇 |
中国政治 | 55篇 |
政治理论 | 764篇 |
综合类 | 9篇 |
出版年
2023年 | 20篇 |
2022年 | 15篇 |
2021年 | 28篇 |
2020年 | 56篇 |
2019年 | 82篇 |
2018年 | 110篇 |
2017年 | 105篇 |
2016年 | 116篇 |
2015年 | 77篇 |
2014年 | 89篇 |
2013年 | 436篇 |
2012年 | 92篇 |
2011年 | 98篇 |
2010年 | 83篇 |
2009年 | 96篇 |
2008年 | 101篇 |
2007年 | 104篇 |
2006年 | 96篇 |
2005年 | 85篇 |
2004年 | 68篇 |
2003年 | 80篇 |
2002年 | 66篇 |
2001年 | 61篇 |
2000年 | 53篇 |
1999年 | 52篇 |
1998年 | 33篇 |
1997年 | 41篇 |
1996年 | 32篇 |
1995年 | 34篇 |
1994年 | 33篇 |
1993年 | 26篇 |
1992年 | 41篇 |
1991年 | 42篇 |
1990年 | 36篇 |
1989年 | 27篇 |
1988年 | 20篇 |
1987年 | 24篇 |
1986年 | 30篇 |
1985年 | 29篇 |
1984年 | 28篇 |
1983年 | 26篇 |
1982年 | 30篇 |
1981年 | 20篇 |
1980年 | 13篇 |
1979年 | 12篇 |
1978年 | 13篇 |
1977年 | 9篇 |
1974年 | 8篇 |
1967年 | 5篇 |
1965年 | 5篇 |
排序方式: 共有2924条查询结果,搜索用时 15 毫秒
141.
142.
Privatization and cost reduction 总被引:1,自引:0,他引:1
Janet Rothenberg Pack 《Policy Sciences》1989,22(1):1-25
In this paper several examples of government contracts with private firms are examined to see how experience conforms to a principal-agent model of cost minimization via competitive bidding and how important are the many qualifications to the model. Fifteen cases of local government contracting are examined.The course of private contracting is not always smooth — as judged by the many contract disruptions observed and by the number of cities that believe they are no longer saving money by contracting and those which have resumed public production. It also seems to be the case, however, that competition generally reduces initial costs, that in many cases cost savings persist, that it is possible to stimulte competition, and that providing for continual interaction, as contrasted with simply monitoring performance, can prevent disruption. 相似文献
143.
C G Scott 《Social security bulletin》1989,52(8):2-9
In order to receive payments under the Supplemental Security Income (SSI) program, an aged, blind, or disabled person's countable resources must fall below specified limits. The current limits are +2,000 for an individual and +3,000 for a couple. In 1987, when the data were collected for this study, these limits were +1,800 for an individual and +2,700 for a couple. This study found that the resource levels of most SSI recipients were well below the 1987 limits. A majority of SSI recipients had less than +100 in countable resources, and only about 12 percent of SSI recipients had more than +1,000 of resources. These low levels of resources ensure that relatively few recipients become ineligible for SSI payments because of resource accumulation. The most common forms of countable resources held by SSI recipients were cash, checking accounts, and savings accounts. 相似文献
144.
C G Scott 《Social security bulletin》1989,52(2):2-13
Since its enactment in 1974, the Supplemental Security Income (SSI) program has had a stable caseload of about 4 million recipients. Hidden by this unchanging total is the fact that nearly 9 million persons were served by the program from 1974 to 1986. This study explores some SSI program dynamics by following a group of SSI awardees for a period of 4 years from the initial receipt of award in 1981. Many of these awardees had previous contact with the program either through a previous award or a denial. About 60 percent of the awardees were eligible at the end of the 4-year period. Most persons who became ineligible did so within the first 6 months after the award. 相似文献
145.
In principle, reporting by state and local governments to thefederal government is essential to the design and implementationof national policy. In practice, reporting often engenders resentmentof federal intrusion and is often dismissed as a waste of stateand local resources. Is reporting useless? Does it strengthenthe federal government at the expense of state and local governments?We asked federal, state, local, and site officials about thevalue and burden of five specific reporting systems in elementaryand secondary education. Common assumptions about reportingdid not correspond to respondent reactions. Both value and burdencascade through the intergovernmental system, reaching policymakersin all governments. Although critics seldom discriminate betweentypes of reporting, we found that reporting designed to improvecompliance with federal standards evoked different judgmentsof value and burden than reporting designed for assistance.These results suggest some new approaches to federal policygoverning the collection of information and to the design ofindividual reporting systems. 相似文献
146.
Janet K. Boles 《政策研究评论》1989,8(3):638-647
This article examines the ways in which a feminist family policy agenda has led to significant political action and change within American cities. Feminist groups, during the past fifteen years, became a part of emerging local women's rights policy networks that effected changes in several services for women and children: libraries (programming for women and non-sexist children's literature acquisitions policies); public education (gender equit under Title IX); social welfare (child care and displaced homemaker services); and criminal justice and health (the treatment of the victims of rape and domestic violence). This policy success stems not only from the workings of traditional interest group politics and policy networks but also from the astute use of political symbols, bureaucratic norms, and the federal system. 相似文献
147.
We examine whether nations, faced with the threat of terrorism, will be motivated to engage in the efficient amount of retaliation against terrorists. We demonstrate that the problem confronting the efforts of nations to achieve an optimal retaliation against terrorists is understated by the traditional free-rider analysis. In particular, nations have the option of actually selling or reducing the public good of retaliation, provided through the efforts of others, by offering safe havens to terrorists in return for the terrorists' pledge to attack elsewhere. This paid-rider behavior is also shown to apply to other public good scenarios.The authors gratefully acknowledge the helpful comments of Gordon Tullock on an earlier draft. Sole responsibility for the paper's content rests with the authors. Todd Sandler's research was supported by a Science and Humanities Research Institute Summer Grant at Iowa State University. 相似文献
148.
149.
Scott B. Hamilton Thomas A. Knox William G. Keilin 《Journal of youth and adolescence》1986,15(2):133-145
In order to assess the relationship between family members' cognitive and affective responses to nuclear war issues, 317 college students and their parents (n=559) independently completed a multifaceted questionnaire that included items concerning personal reactions, predictions, opinions, and attitudes about nuclear war. Results revealed a negligible relationship between the responses of college students and their parents, although the level of concordance between mothers and fathers was somewhat greater. Moreover, parents and students were relatively poor at predicting each others' nuclear threat attitudes, and the strength with which an attitude was endorsed did not enhance its predictability. Results are discussed with regard to heterogeneity in attitudinal and affective reactions within families, and with regard to the idea that infrequent communication concerning nuclear war issues may be occurring.Portions of this article were presented at the meeting of the American Psychological Association, Los Angeles, California, August 25, 1985.Interested in clinical and counseling psychology, the psychological effects of the threat of nuclear war, and parent training.Interested in counseling psychology, nuclear war issues, and the concept-specific measurement of emotionality.Interested in counseling psychology, nuclear war issues, and factors influencing custody decisions. 相似文献
150.