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   14112篇
  免费   318篇
财政金融   2970篇
工业经济   1065篇
计划管理   2255篇
经济学   3019篇
综合类   152篇
运输经济   100篇
旅游经济   222篇
贸易经济   2250篇
农业经济   619篇
经济概况   1763篇
信息产业经济   3篇
邮电经济   12篇
  2023年   73篇
  2021年   84篇
  2020年   191篇
  2019年   252篇
  2018年   335篇
  2017年   332篇
  2016年   306篇
  2015年   203篇
  2014年   327篇
  2013年   1584篇
  2012年   383篇
  2011年   465篇
  2010年   423篇
  2009年   438篇
  2008年   403篇
  2007年   356篇
  2006年   331篇
  2005年   261篇
  2004年   269篇
  2003年   271篇
  2002年   271篇
  2001年   276篇
  2000年   290篇
  1999年   292篇
  1998年   299篇
  1997年   263篇
  1996年   221篇
  1995年   219篇
  1994年   235篇
  1993年   239篇
  1992年   262篇
  1991年   252篇
  1990年   200篇
  1989年   181篇
  1988年   165篇
  1987年   162篇
  1986年   167篇
  1985年   237篇
  1984年   253篇
  1983年   244篇
  1982年   211篇
  1981年   194篇
  1980年   168篇
  1979年   167篇
  1978年   156篇
  1977年   133篇
  1976年   123篇
  1975年   139篇
  1974年   99篇
  1973年   100篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
861.
862.
863.
Housing prices are largely determined by physical location. By applying the outsample prediction accuracy of rental prices as evaluation criteria, we examine whether the choice of the hedonic model additionally depends on the spatial structure of housing data, i.e. accounting for locational effects by either district fixed effects or spatial econometric modelling. Our results show that a generalised spatio-temporal model outperforms a district fixed effects model only if the spatial density – the weighted mean distance to nearest neighbours – is relatively small. Moreover, we use the required density thresholds to deduce a pseudo indifference curve, thereby showing that the ratio of the weighted spatial distance-to-the mean district diameter increases with the mean sample size per district. This emphasises the role of data structure and district choices for model selection. Differences in data can thereby serve as an explanation for contradictory findings in literature, whether spatial econometric methods or simple district fixed effects are used.  相似文献   
864.
This paper examines the discourses of authenticity and ethics employed by adventure tourists regarding the use of the natural environment. In one case, full-time traveling rock climbers use their dedication to the sport and annual visits to the Red River Gorge as evidence for their authoritative voice on ethical climbing practice. While they identify the growing numbers of leisure climbers as a problem for sustainability, many also take up temporary employment as guides and are directly involved in the introduction of new climbers to the area. In another case, two groups of wilderness enthusiasts – “ADK 46ers” and “Summit Stewards” – lament the environmental and social impacts of other recreational users in the Adirondack Park. Despite being visitors themselves, Summit Stewards and 46ers use their sense of place and knowledge of Adirondack history and ecology to substantiate their authority as purveyors of ethical practice. In both cases, senses of responsibility are inspired by senses of place, but are articulated through notions of authenticity and used as justification for ethical authority. While validating their presence in these outdoor spaces, the use of such rhetoric also minimizes their own impacts yielding further tensions among user groups.  相似文献   
865.
866.
This paper explores the unaddressed question of how the large, complex paddy‐rice market in Bangladesh is able to transform itself and evolve, in the face of changing risks and incentives, into a better‐functioning market system. It notes significant but opposing trends over two decades in different areas, particularly in terms of market structure, trade circuits and exchange relations. Evidence of a sharp decline in tied transactions points to the growing importance of impersonal exchange. The underlying causes of these changes are explored, with particular reference to microfinance, remittances, rural roads and mobile telephony.  相似文献   
867.
868.
869.
This paper reports the results of surveys of firms that were conducted both in India and Thailand. The surveys centred on a wide range of human resource management practices (staffing, training, compensation and evaluation). The sample consisted of both the subsidiaries of multinational corporations and locally owned companies. Statistical analysis suggests pronounced differences in employment practices between India and Thailand in some areas, while considerable similarities in other areas. The study controls for a variety of organizational factors (e.g., firm size, ownership (foreign versus domestic), union status).  相似文献   
870.
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