首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   30445篇
  免费   1519篇
  国内免费   5篇
各国政治   1296篇
工人农民   1367篇
世界政治   2090篇
外交国际关系   1025篇
法律   20075篇
中国共产党   8篇
中国政治   230篇
政治理论   5625篇
综合类   253篇
  2021年   157篇
  2020年   565篇
  2019年   623篇
  2018年   795篇
  2017年   870篇
  2016年   944篇
  2015年   700篇
  2014年   755篇
  2013年   3042篇
  2012年   828篇
  2011年   882篇
  2010年   807篇
  2009年   853篇
  2008年   898篇
  2007年   929篇
  2006年   922篇
  2005年   821篇
  2004年   801篇
  2003年   767篇
  2002年   745篇
  2001年   1157篇
  2000年   1015篇
  1999年   835篇
  1998年   443篇
  1997年   317篇
  1996年   365篇
  1995年   336篇
  1994年   339篇
  1993年   341篇
  1992年   550篇
  1991年   589篇
  1990年   566篇
  1989年   506篇
  1988年   558篇
  1987年   490篇
  1986年   577篇
  1985年   542篇
  1984年   428篇
  1983年   405篇
  1982年   332篇
  1981年   316篇
  1980年   249篇
  1979年   358篇
  1978年   221篇
  1977年   180篇
  1976年   163篇
  1975年   208篇
  1974年   233篇
  1973年   175篇
  1972年   170篇
排序方式: 共有10000条查询结果,搜索用时 21 毫秒
991.
992.
Responding to recent articles in Governance highlighting the need for improved measurement of bureaucratic characteristics, this article describes efforts to map Brazil's federal agencies on three dimensions—capacity, autonomy, and partisan dominance—derived from data on more than 326,000 civil servants. The article provides a “proof of concept” about the utility of agency‐level measures of these variables, demonstrating how they relate to an output common to all agencies: corruption. The article provides a first step in the direction of building a comparative research program that offers objective evaluation of bureaucracies within nation‐states, with the intent of better disentangling their impact on governance outcomes.  相似文献   
993.
The Economic Stimulus Act of 2008 dramatically but temporarily increased the mortgage loan amount eligible for insurance through the Federal Housing Administration (FHA). We use the implementation and expiration of these loan limits as a source of exogenous variation in the availability of FHA insurance to measure the impact on the overall mortgage market and conventional lending. We find that the introduction of higher loan limits increased the number of loan originations, but that the expiration of those loan limits roughly 6 years later did not significantly decrease affected loan originations. The substitution between loan products and small net impact on the overall mortgage market when the ESA loan limits expired may be explained by the return of a stronger conventional lending industry than existed during the housing crisis.  相似文献   
994.
After the 2008 global financial crisis, both the United States and the United Kingdom introduced austerity policies targeted at particular elements of their national budgets. The purpose of this article is to compare the nature of this retrenchment; the similarities and differences in how it was implemented; and its initial impacts on one of the expenditure areas particularly affected: affordable rental housing programs and housing support for low-income households. Using a wide range of data sources, we find evidence of political and fiscal policy analogies in the timing and forms of the initial policy choices and how these were modified in the face of economic and political pressures. There are considerable similarities both in the instruments used to reduce housing expenditures and in the early impacts on support mechanisms and recipients. However, we find different histories and trajectories of support between the two countries that suggest that the longer term differences in outcomes may be more important.  相似文献   
995.
996.
997.
Drawing on institutional theory, this article articulates qualitative insights from a program of research on Canadian health technology‐based ventures to examine the rules that characterize economic policy, capital investment, and regulatory approval as well as the way these institutions enable and constrain the development of ventures at an early stage. Our findings clarify how economic policy integrates these ventures into the entrepreneurial domain, how capital investment configures them for economic value extraction, and how regulatory approval fully releases their market value. These findings help to revisit current policy modernization initiatives by calling attention to the convergence among the three institutions. Rather than operating solely as a source of constraints, these institutions provide a highly integrated market‐oriented space for health technology‐based entrepreneurial activities to unfold.  相似文献   
998.
Many core graduate-level seminars claim to expose students to their discipline’s “canon.” The contents of this canon, however, can and do differ across departments and instructors. This project employs a survey of core American politics PhD seminar syllabi at highly ranked universities to construct a systematic account of the American politics canon. Our results offer valuable insights into the topics and literature that political scientists consider important and on which future scholars base their work. Our article breaks down the literature into a comprehensive list of topics and subtopics, which allows us to identify both an overall field canon and one for each topic, to assess whether some topics receive more attention than others, and to identify which topics are most clearly defined. We explore the extent to which diverse perspectives and methods are (or are not) taught to young scholars, and, although we identify sets of frequently assigned readings and authors within each topic, we also find considerable variation between seminars.  相似文献   
999.
The hostile media effect (HME) has generally been tested in terms of in-groups and out-groups, with a “neutral” story in between. This ignores the nature of many social groups as comprising subgroups, often but not always sharing feelings of connectedness and purpose. In cases when bounded subgroups are at odds with one another, HME provides little guidance. A contested partisan primary provides such a case. This study takes identity centrality, candidate favorability, and perceived social network homogeneity as measures of partisanship and involvement, hypothesizing relationships between each and perceived bias against one’s candidate and party. Findings show that markers of candidate-focused social identity predict greater perceived bias against one’s candidate during the 2016 primary season, while party-focused identity fails to predict perceived bias against one’s party. This suggests that candidate support identity overrides plain partisanship during primaries, supporting concern that a heated primary might damage general election party unity. Subsequent postconvention findings suggest that the salience of candidate-focused identity fades, while homogeneity of one’s network regarding party support helps to make perceived hostility toward one’s party identity more salient. However, as campaigns become more candidate-centered, the contestation between nested candidate and party identities may grow fiercer.  相似文献   
1000.
Classic studies on hegemonic stability and power transition suggest that concentration of capabilities favoring a single state can promote economic cooperation and discourage militarized conflict. However, tests of these arguments have been primarily limited to examining temporal variation in global capability distributions and corresponding levels of system-wide cooperation; few have examined the impact of capability concentration at the region level. In this article, we contend that concentration of regional military capabilities corresponds to lower trade costs for states throughout a region and to an incentive for weaker states to de-prioritize expenditure on the military, freeing resources that can be used to promote trade. As a result, this condition promotes higher levels of trade, particularly within the region. We also argue that democratic regional powers are better able to foster confidence in the sustainability of cooperation; thus, the trade-enhancing impact of concentrated regional capabilities is stronger when the predominant state is more democratic. We find evidence in support of our expectations in statistical models examining state trade between 1960 and 2007.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号