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   19319篇
  免费   1578篇
财政金融   3703篇
工业经济   1665篇
计划管理   3593篇
经济学   4234篇
综合类   159篇
运输经济   220篇
旅游经济   310篇
贸易经济   3470篇
农业经济   977篇
经济概况   2562篇
信息产业经济   1篇
邮电经济   3篇
  2021年   178篇
  2020年   346篇
  2019年   702篇
  2018年   546篇
  2017年   673篇
  2016年   639篇
  2015年   575篇
  2014年   691篇
  2013年   2146篇
  2012年   818篇
  2011年   793篇
  2010年   746篇
  2009年   707篇
  2008年   650篇
  2007年   534篇
  2006年   497篇
  2005年   409篇
  2004年   408篇
  2003年   395篇
  2002年   375篇
  2001年   367篇
  2000年   379篇
  1999年   297篇
  1998年   270篇
  1997年   277篇
  1996年   256篇
  1995年   238篇
  1994年   231篇
  1993年   271篇
  1992年   245篇
  1991年   252篇
  1990年   237篇
  1989年   220篇
  1988年   208篇
  1987年   190篇
  1986年   216篇
  1985年   294篇
  1984年   269篇
  1983年   270篇
  1982年   225篇
  1981年   222篇
  1980年   241篇
  1979年   201篇
  1978年   172篇
  1977年   165篇
  1976年   144篇
  1975年   131篇
  1974年   111篇
  1973年   111篇
  1972年   84篇
排序方式: 共有10000条查询结果,搜索用时 14 毫秒
771.
772.
The entrepreneurial ecosystems literature has increasingly explored network relationships between different stakeholders, as well as the role of context. This article addresses the challenge of including a sport context in the entrepreneurial ecosystem literature thereby contributing to the sport entrepreneurship literature by bringing insights from entrepreneurship ecosystem research. In‐depth interviews of football stakeholders in the sport entrepreneurship ecosystem are conducted in terms of understanding the emergence of digital sport start‐ups. The issues raised help explore the changing nature of digital entrepreneurial ecosystems to take into account new sport technological advances. Mixed embeddedness theory is used as the conceptual foundation to understand sport digital entrepreneurial ecosystems. Key management practices are identified in terms of sport start‐ups participating in entrepreneurial ecosystems. The article concludes by making suggestions for future research.  相似文献   
773.
This paper proposes the presence of a sacred/profane continuum along which marketing exchanges may be made. The functioning of this continuum is illustrated through the examination of novel reproductive markets, e.g. surrogate mothers, in vitro fertilization, that “mix” aspects of sacred and profane exchange, resulting in anxiety and confusion for market participants and society as a whole. Some ethical guidelines for governing such mixed markets are suggested.  相似文献   
774.
The workshop presented a semi-quantitative risk assessment technique that can be used to judge the total risk on all undesired consequences/events for a product manufacturing operation. The technique requires an experienced team to judge risk utilizing a numerical rating system that, although arbitrarily chosen, is self consistent and provides a relative assessment of product manufacturing risk. Once calculated, the risk is compared to the product's net income for making risk management and product planning decisions. The workshop included an exercise where all participants could try the technique.  相似文献   
775.
776.
The potential for dust explosion from electrostatic discharge in pneumatic Conveying systems has been reviewed. The importance of lab testing to determine electrostatic charging of powders in contact with materials of construction is illustrated. Correlation of predicted voltage fields (from lab testing) to full scale is good. With the voltage field information, ESD potential at various parts of the pneumatic conveying system can be determined (primarily in receivers, silo and separator).  相似文献   
777.
I document a strong correlation between paying the full listing price on homes and borrowing 100% loan‐to‐value. Homebuyers who do both overpay by 2.8% to 3.9% ($4,800 to $6,700) and are 22.7% more likely to have their properties foreclosed within one year. The correlation is not mechanical: there is a discontinuity in the average leverage around the full listing price. The correlation is stronger in areas with a high fraction of financially constrained and unsophisticated residents, and in areas of high past price growth (potentially indicative of buyer optimism).  相似文献   
778.
Many wildlife tourist attractions (WTAs) have negative impacts on animal welfare and species conservation. In the absence of regulation, raising standards requires tourists to create market pressure by choosing to attend WTAs with benefits for wildlife. We surveyed respondents from five countries – China, Australia, Canada, UK, and USA – to quantify how attitudes to captive animals, and towards WTAs’ outputs and standards, may vary with nationality. Our aim was to provide a firm basis for behaviour change interventions to alter current patterns of tourist consumption of WTAs. All respondents agreed on the importance of conservation and animal welfare, but Chinese respondents were twice as likely to believe that WTAs would not be allowed to exist if they were bad for animals, and that WTAs’ promotional materials were reliable indicators of welfare and conservation standards. These findings indicate Chinese respondents had fundamentally similar attitudes to those from the other countries, but differed in how those attitudes were likely to be applied. Chinese tourists may experience more barriers to aligning their actions with their values with respect to WTAs. Removing these barriers may require information campaigns to highlight the lack of regulation, and the unreliability of some WTAs’ promotional materials and tourists’ reviews.  相似文献   
779.
Great hopes have been placed in the sharing economy to provide a new business model based on peer-to-peer (P2P) exchanges of underutilized assets. As a model, the sharing economy has been expected to make significant contributions to sustainability, providing new opportunities for entrepreneurship, more sustainable use of resources, and consumer co-operation in tight economic networks. However, in recent years, digital platforms have turned into the most important actors in the global sharing economy, turning global corporations, such as AirBnB, Booking, or TripAdvisor into intermediaries controlling and profiting from most transactions. Focused on accommodation, this paper conceptualizes the sharing economy in comparison to the wider collaborative economy, and discusses its social, economic, environmental, and political impacts in comparison to the sustainable development goals. It concludes that the sharing economy has great potential to make very significant contributions to sustainability, though the model is increasingly being replaced by the collaborative economy, which performs as an extension and acceleration of neoliberal economic practices.  相似文献   
780.
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