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   429篇
  免费   28篇
各国政治   41篇
工人农民   19篇
世界政治   33篇
外交国际关系   43篇
法律   199篇
政治理论   120篇
综合类   2篇
  2023年   2篇
  2022年   2篇
  2021年   4篇
  2020年   11篇
  2019年   13篇
  2018年   19篇
  2017年   23篇
  2016年   17篇
  2015年   17篇
  2014年   13篇
  2013年   61篇
  2012年   19篇
  2011年   9篇
  2010年   7篇
  2009年   14篇
  2008年   15篇
  2007年   14篇
  2006年   24篇
  2005年   14篇
  2004年   21篇
  2003年   13篇
  2002年   11篇
  2001年   12篇
  2000年   9篇
  1999年   8篇
  1998年   5篇
  1997年   10篇
  1996年   6篇
  1995年   3篇
  1994年   5篇
  1993年   2篇
  1992年   4篇
  1991年   6篇
  1989年   2篇
  1988年   4篇
  1987年   5篇
  1984年   3篇
  1983年   4篇
  1982年   2篇
  1981年   2篇
  1979年   1篇
  1978年   1篇
  1976年   1篇
  1974年   2篇
  1973年   5篇
  1972年   1篇
  1970年   2篇
  1969年   2篇
  1968年   1篇
  1967年   2篇
排序方式: 共有457条查询结果,搜索用时 0 毫秒
391.
ABSTRACT

Despite the increasing acknowledgment of scholars and practitioners that many large-scale agricultural land acquisitions in developing countries fail or never materialize, empirical evidence about how and why they fail to date is still scarce. Too often, land deals are portrayed as straightforward investments and their success is taken for granted. Looking at the coffee sector in Laos, the authors of this article explore dimensions of the land grab debate that have not yet been sufficiently examined. Coffee concessionaires in southern Laos often fail to use all of the land granted them and fail to produce high yields on the land they do use. Thus, the authors challenge the often-assumed superiority and effectiveness of large-scale versus small-scale production, specifically the argument that they modernize agricultural production and optimize land use. They argue that examining failed investments is as important as studying successful ones for understanding the implications of the land grabbing phenomenon for social, economic, and environmental outcomes. Knowledge about the scale of “failed land deals” provides important motivation for national governments to close the gap between intentions and actual outcomes. This article engages with the current debate on quality of investment and challenges the approach of employing land concessions as a vehicle for economic development in the Lao coffee sector and in other sectors and countries.  相似文献   
392.
393.
394.
395.
Public Choice - How much regulation exists? Can short- and long-term growth trends in regulation be identified? Which agencies produce the most regulation? Are some sectors of the economy more...  相似文献   
396.
397.
This article considers the following question: given sex workers' barriers to participation, how do they engage in political life, if at all? To answer this, I draw on semi-structured open-ended interviews with forty adults who have supported themselves with sex work in the San Francisco Bay Area. While these individuals do not represent all sex workers in the United States, they exhibit a variety of capacities and methods for expressing their voices in the polity. Even as they faced multiple disadvantages and barriers to participation, they engaged in civic and political life through voting and community-based advocacy work, and they indicated that nonprofit agencies provide spaces that potentially support and encourage these activities. Although my results are from a small sample, they provide an important contribution to political science by shedding light on a population that is rarely studied in the discipline, especially regarding their formal and informal political involvement. In so doing, this article adds to broader scholarship on participation among marginalized and often under-studied groups.  相似文献   
398.
399.
400.
Abstract: For the last 30 years, railway transport has been in steep decline within the Community. It is argued that such a decline is not inevitable, but it is partly due to regulatory distortions that favour other transport modes. As a result of the delay in liberalisation, railways lose out in comparison to air and road transport where market opening triggered a restructuring process of the industry much earlier. An important step towards more competition has been taken with a new ‘railway package’, which liberalises rail freight transport from 2003 on. This article gives an overview of recent developments in the sector, including the status quo of liberalisation and the recently adopted legislation. Taking into account recent jurisprudence, it then analyses competition policy issues with a focus on obligations that arise for dominant railway companies under Article 82 EC. The article lastly discusses what structural changes are required to deal with structural obstacles to a competitive European railway market. It is argued that a complete separation of infrastructure operation and transport services would be the solution most compatible with the railway directives and Article 86 EC.  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