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   27762篇
  免费   648篇
  国内免费   623篇
财政金融   2038篇
工业经济   803篇
计划管理   5785篇
经济学   4480篇
综合类   6210篇
运输经济   75篇
旅游经济   212篇
贸易经济   2921篇
农业经济   1635篇
经济概况   4874篇
  2024年   26篇
  2023年   179篇
  2022年   263篇
  2021年   404篇
  2020年   476篇
  2019年   262篇
  2018年   229篇
  2017年   285篇
  2016年   370篇
  2015年   663篇
  2014年   1888篇
  2013年   1589篇
  2012年   2443篇
  2011年   3222篇
  2010年   2526篇
  2009年   2249篇
  2008年   2420篇
  2007年   2253篇
  2006年   2076篇
  2005年   1476篇
  2004年   1106篇
  2003年   911篇
  2002年   529篇
  2001年   491篇
  2000年   304篇
  1999年   136篇
  1998年   60篇
  1997年   56篇
  1996年   45篇
  1995年   15篇
  1994年   11篇
  1993年   18篇
  1992年   3篇
  1991年   3篇
  1990年   4篇
  1989年   3篇
  1988年   2篇
  1986年   1篇
  1985年   6篇
  1984年   9篇
  1983年   5篇
  1982年   3篇
  1981年   2篇
  1979年   3篇
  1978年   6篇
  1977年   1篇
  1973年   1篇
排序方式: 共有10000条查询结果,搜索用时 250 毫秒
991.
灰色收入即为非法收入及其他来源不明的收入,具有参与范围扩大化、标的形式多样化、实地操作隐蔽化、实现标准奢侈化、实现手段智能化等趋势特点。产生原因有法律缺失、教育缺位、监管失严、权力信息不明等,对应的防控措施有严格法律界定、加强生活圈管理、加强多方监管、推进收入和财产公示等。  相似文献   
992.
In the literature on Olympic legacies and impacts, there is a dearth of materials that specifically address the issue of Olympic impact for non-hosting regions. The literature tends to deal with impacts at a national level, or at a hosting-city region level, neglecting in large part the degree to which benefits can be leveraged by non-hosting regions. A further limitation identified in the literature is a failure to engage in detailed formal evaluation of policy implementation where assertions of potential policy impact are based on untested assumptions. This study is intended to address both of these concerns. It presents an empirical, ‘bottom-up’ application of a Realist Evaluation framework to assess the impact of a policy initiative – Workplace Challenge – aimed at leveraging enhanced sports participation in a non-hosting region – Leicestershire – in the period leading up to the 2012 Games. In doing so, it seeks to identify which causal mechanisms worked within this particular context to produce the observed outcomes. The evaluation results demonstrate that the programme represented a positive approach to fostering regular engagement with sport and physical activities for some groups in some types of organisations, and that awareness and motivational factors associated with the London 2012 Games are, in this case, linked (albeit weakly) to an increase in sport and physical activity participation for specific groups taking part in the programme in particular organisational contexts.  相似文献   
993.
This paper discusses an optimal investment, consumption, and life insurance purchase problem for a wage earner in a complete market with Brownian information. Specifically, we assume that the parameters governing the market model and the wage earner, including the interest rate, appreciation rate, volatility, force of mortality, premium-insurance ratio, income and discount rate, are all random processes adapted to the Brownian motion filtration. Our modeling framework is very general, which allows these random parameters to be unbounded, non-Markovian functionals of the underlying Brownian motion. Suppose that the wage earner’s preference is described by a power utility. The wage earner’s problem is then to choose an optimal investment-consumption-insurance strategy so as to maximize the expected, discounted utilities from intertemporal consumption, legacy and terminal wealth over an uncertain lifetime horizon. We use a novel approach, which combines the Hamilton–Jacobi–Bellman equation and backward stochastic differential equation (BSDE) to solve this problem. In general, we give explicit expressions for the optimal investment-consumption-insurance strategy and the value function in terms of the solutions to two BSDEs. To illustrate our results, we provide closed-form solutions to the problem with stochastic income, stochastic mortality, and stochastic appreciation rate, respectively.  相似文献   
994.
以往学术界都把美国心理学家马斯洛奉为需求层次理论的鼻祖;但最新的研究成果,彻底推翻了这一陈见,认为中国明朝的科学家朱载堉才是需求层次理论的鼻祖,比美国人马斯洛还要早约三百六十多年,且朱载堉对需求层次的认知,要比马斯洛更独特,更显棋高一着。  相似文献   
995.
我国的新型农村金融机构自成立和运行以来,取得了一定的成绩,但也存在着若干问题亟待解决。本文分析了新型农村金融机构运行中存在的问题,并提出改进现状的相关建议,以更好地发挥新型农村金融机构在新农村建设中的作用。  相似文献   
996.
通过讨论主要货币起源与演化理论的矛盾与不足,从货币取得人们信任的角度,尝试整合了货币起源与演化的事实与逻辑,由此可以认为货币的本质是信用,(商品、金属)货币和纸币一样都是信用货币,货币演化是货币内涵的威权因素和物的因素相互竞争的结果;且货币制度的核心是信用。维持人们对货币的信心与币值稳定应当是任何货币调控的出发点和归宿。  相似文献   
997.
分析了港口与腹地的关系,对辽宁沿海港口与东北腹地互动发展的现状、在在问题进行了分析,在此基础上,从明确互动层次及港口布局分工、建立内陆干港、提升口岸服务水平、优化腹地产业结构等方面提出了推动辽宁沿海港口与东北腹地互动的对策建议。  相似文献   
998.
The paper investigates the factors influencing the internationalization of mining firms into Africa and the strategies employed. We find that the three most important factors identified by mining houses as influencing their decisions to invest are all related to institutional voids particular to developing countries—security of tenure, political stability and poor infrastructure. South African firms have shown themselves to be adept to doing business in volatile political and institutional environments because of their experience within their home base with relatively weaker institutions. They have therefore developed advantages over multinational enterprises from industrialized countries to doing business in these new frontiers.  相似文献   
999.
Visitors are impressed by specific destination attributes, which are sometimes the main motivating reasons for the travel selection or sometimes they are just one of the elements of a whole destination experience. This is because tourism and travel products are generally a combination of several different supplier offerings or they are a combination of the natural and artificial attributes of a destination that cannot be fully known before the experience of travel. Moreover, the importance and influence of these attributes on overall visitor satisfaction may differ considerably, depending on the market segments. In recent years, some studies have shown that the influences of destination attributes on overall visitor satisfaction are not symmetric in every case. For the purposes of this study, the symmetric and asymmetric influences of destination attributes are investigated for three major market segments of the Side-Manavgat area, Antalya, Turkey. The results show that the importance and influences of destination attributes may change according to the analysis technique employed and the market segment examined.  相似文献   
1000.
党的十八届四中全会通过的《中共中央关于全面推进依法治国若干重大问题的决定》为全面推进依法治国作出重大部署.我们不仅要从历史和全局的高度学习贯彻十八届四中全会精神和《决定》内涵,以实事求是的精神全面推进依法治国,同时又要以依法治国方针为指导,全面推进高职教育事业健康快速发展.  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