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   14639篇
  免费   206篇
各国政治   533篇
工人农民   1226篇
世界政治   689篇
外交国际关系   503篇
法律   8495篇
中国政治   38篇
政治理论   3295篇
综合类   66篇
  2020年   74篇
  2019年   98篇
  2018年   1377篇
  2017年   1302篇
  2016年   1134篇
  2015年   155篇
  2014年   119篇
  2013年   727篇
  2012年   319篇
  2011年   1049篇
  2010年   1132篇
  2009年   707篇
  2008年   866篇
  2007年   824篇
  2006年   177篇
  2005年   210篇
  2004年   308篇
  2003年   294篇
  2002年   173篇
  2001年   215篇
  2000年   180篇
  1999年   158篇
  1998年   106篇
  1997年   102篇
  1996年   87篇
  1995年   101篇
  1994年   95篇
  1993年   82篇
  1992年   116篇
  1991年   149篇
  1990年   128篇
  1989年   143篇
  1988年   129篇
  1987年   150篇
  1986年   138篇
  1985年   146篇
  1984年   142篇
  1983年   144篇
  1982年   105篇
  1981年   94篇
  1980年   89篇
  1979年   97篇
  1978年   81篇
  1977年   67篇
  1976年   66篇
  1975年   61篇
  1974年   69篇
  1973年   67篇
  1972年   55篇
  1969年   56篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
911.
China's rapidly growing motor vehicle fleet is changing the makeup of its urban atmosphere. While the two major problem pollutants historically have been particulates and sulfur dioxide, the growth in the number of automobiles has generated substantially increased levels of nitrogen dioxide (NO2). This paper examines and values the mortality health effects (reduced premature deaths) from cleaning up these three pollutants. Findings indicate that valued gains from reduced air pollution mortality can average 3% of a city's GDP. Moreover, the growing auto fleet may generate a ten-fold increase in NO2-based mortality costs and offset other, ongoing cleanup efforts in many Chinese cities. Specifically, the paper explores how the increasing number of automobiles might diminish or offset environmental cleanup activities focused upon particulate and sulfur dioxide pollution.  相似文献   
912.
Many tout the benefits of collaborative environmental management as an alternative to centralized planning and command and control regulation, but the excitement over collaborative processes has not been matched by evidence that these processes actually improve the environment. The most crucial question in collaborative environmental management remains unanswered and often unasked: To what extent does collaboration lead to improved environmental outcomes? We know much about why collaboration is occurring and how collaborative processes and outputs vary. The primary goal of future research on collaborative environmental management should be to demonstrate whether collaboration improves environmental conditions more than traditional processes and newer market-based processes. Collaboration is not a panacea; it is a choice that policy makers and public managers should make based on evidence about expected outcomes.  相似文献   
913.
In 2006, the Public Choice Society chose a new president using approval voting. There were five candidates, and the election was extremely close. We indicate the sources of support of the different candidates, based in part on spectral analysis, by voters who cast between one and five votes. Using preference information that was also gathered, we show that two candidates different from the approval voting winner, including the apparent Condorcet winner, might have won under different voting systems. Because most voters did not indicate their complete preference rankings, however, these differences are hardly robust, especially since the outcome was essentially a dead heat.  相似文献   
914.
Networks of local government support organisations (LGSOs) are critical to successful intergovernmental relations and effective local governance in democratic societies. Bulgaria had no such network of municipal associations when it began the transition from communist rule in the early 1990s. Using US and other external technical assistance, Bulgaria over the next decade overcame the impediments to collective action and established what appears to be an effective and sustainable system to back up its cities and towns. Important factors in mobilising support included a long‐term focus on institutional development, non‐partisanship, flexibility in implementation and a pragmatic orientation that focused on learning by doing. Copyright © 2006 John Wiley & Sons, Ltd.  相似文献   
915.
Public management scholars often claim that agency competition provides an effective institutional check on monopoly authority, and hence, leads to improvement of administrative performance in public sector agencies. This logic was central for creating the Congressional Budget Office (CBO) in 1975 to challenge the policy information provided by the Office of Management and Budget (OMB). We challenge this conventional wisdom by demonstrating that CBO has failed to enhance the quality of U.S. fiscal policy analysis on its own terms; nor has it spurred improvements in OMB's performance. Our empirical results indicate that the quality of OMB's fiscal projections has often deteriorated since the establishment of CBO as a rival bureau. We also show that both public and private information is being shared by these agencies to produce a similar caliber of task outputs. The broader implications of our study indicate that although politicians face incentives to employ agency competition in governmental settings, this type of bureaucratic strategy does not necessarily enhance the quality of administrative performance. © 2006 by the Association for Public Policy Analysis and Management  相似文献   
916.
The article analyses the policy termination literature that originated during the 1970s in the USA. It discusses the value of the traditional termination concept and the (meagre) empirical results of now three decades of its application. The article argues that policy termination may still be a promising policy analytical tool ’ if appropriately revised and refocused. The final part of the article suggests possible ways of reviving the policy termination concept by concentrating seriously on policy content, ideology and the cohesion of potential losers of termination decisions.  相似文献   
917.
918.
919.
920.
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