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   16560篇
  免费   358篇
  国内免费   234篇
财政金融   921篇
工业经济   328篇
计划管理   1729篇
经济学   2586篇
综合类   2607篇
运输经济   947篇
旅游经济   3258篇
贸易经济   1416篇
农业经济   1445篇
经济概况   1915篇
  2024年   81篇
  2023年   229篇
  2022年   304篇
  2021年   419篇
  2020年   458篇
  2019年   479篇
  2018年   458篇
  2017年   638篇
  2016年   565篇
  2015年   452篇
  2014年   962篇
  2013年   2053篇
  2012年   1238篇
  2011年   1319篇
  2010年   1030篇
  2009年   942篇
  2008年   1084篇
  2007年   915篇
  2006年   893篇
  2005年   560篇
  2004年   407篇
  2003年   388篇
  2002年   291篇
  2001年   249篇
  2000年   188篇
  1999年   148篇
  1998年   57篇
  1997年   43篇
  1996年   34篇
  1995年   17篇
  1994年   19篇
  1993年   11篇
  1992年   11篇
  1991年   11篇
  1990年   6篇
  1989年   8篇
  1988年   5篇
  1987年   8篇
  1986年   7篇
  1985年   28篇
  1984年   32篇
  1983年   29篇
  1982年   38篇
  1981年   12篇
  1980年   10篇
  1979年   12篇
  1978年   4篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
Abstract

Through a case study of conservation voluntourism this article brings together critical political ecology, multispecies ethnography, and studies of humanitarian tourism to advance a political ecology of multispecies conservation voluntourism. The article presents multispecies conservation voluntourism as a field that produces and is produced by an “affect economy”, or an economy based on the exchange or trade in the relational. Since the mid-1990s, life on Utila, Honduras, a popular discount backpacker scuba destination located along the Mesoamerican Barrier Reef, has been deeply transformed by the growth of dive tourism, the ecological destruction it has produced, and now the conservation voluntourism industry emerging in its wake. Seventy percent of Utila is comprised of mangroves and associated wetlands, home to several endangered and endemic species. Using examples of whale shark tourism, lionfish hunts, and iguana tracking, this article shows how conservation organizations operate as affect generators, enabling the privilege of engaging in multispecies encounters. Engaging in multispecies conservation voluntourism produces value in the form of cultural capital which is then exchanged for material outcomes by volunteers in the global economy; at the same time, this form of voluntourism obscures local relationships to nature and alters multispecies assemblages from past configurations.  相似文献   
2.
ABSTRACT

This article recounts three stories from TEFI’s walking workshop in Nepal: the construction of a road through what was once a trekking path; a dance-floor encounter at a Himalayan party; and the arrival of one participant, fatigued by jet lag and disoriented by the new surroundings. These stories of confusion, discomfort and fear are linked by one common theme: the potential of uncertainty to foster deep reflection and nuanced conclusions. The premise that uncertainty is to be valued and even cultivated has been explored in educational theory, spiritual traditions, and research on transformative learning. These sources affirm the role of uncertainty in the process of knowledge creation. However, accepting this role can be challenging for educators because it requires they assume a new identity, one which they may perceive as being at odds with their status as “teacher” the identity of learner. One way for the educator to address this challenge may be through recounting their own stories of uncertainty. Stories of being immersed in unfamiliar situations that challenge, confuse and even frighten – stories, in other words of being a tourist – can foster reflection on an intellectual, emotional and spiritual level, engaging the “whole” person, and thus initiating the educator/learner’s transformative journey.  相似文献   
3.
The random-walk version of the efficient market hypothesis is tested for the Istanbul Stock Exchange (ISE) using its composite, industrial, and financial index weekly closing prices. The results obtained from three of the tests indicate that all three series are a random walk, but a nonparametic test provides some evidence against a random walk.  相似文献   
4.
Within the UK there has been a lack of studies of technical efficiency at the Scottish level. This note compares the results obtained using Scottish data with a recent study by Hadley [Journal of Agricultural Economics (2006) Vol. 57, pp. 81–100] for English and Welsh farms. Four major sectors are investigated, namely: (i) cereals, (ii) dairy, (iii) sheep and (iv) beef over the period 1989 to 2004. Some distinct differences in efficiencies, returns to scale and causes of efficiency are found.  相似文献   
5.
The Indian and Pakistani banking industry is said to have an excessive use of labour due to the significant market share of government owned banks. Both countries have undertaken a process of regulatory reform to bring about market discipline in the usage of inputs and to increase the labour use efficiency and productivity. The focus of this paper is the estimation of productivity and efficiency of labour use in the banking sectors of the Indian sub-continent. The results show that the efficiency of labour use across the Indian sub-continent is improving over time and that foreign banks are more efficient compared to domestically owned banks in their usage of labour.  相似文献   
6.
陕西旅游商品市场问题探析与对策研究   总被引:1,自引:0,他引:1  
宋咏梅 《特区经济》2008,235(8):151-152
发展旅游商品对提高区域旅游经济效益具有重要作用。但在陕西旅游产业体系中,购物始终是一个明显的弱项,这制约了陕西旅游经济的持续增长。在系统分析陕西旅游商品市场现存问题的基础上,提出发展陕西旅游商品市场的若干对策。  相似文献   
7.
In the present paper a comprehensive assessment of existing mutual fund performance models is presented. Using a survivor‐bias free database of all US mutual funds, we explore the added value of introducing extra variables such as size, book‐to‐market, momentum and a bond index. In addition to that we evaluate the use of introducing time‐variation in betas and alpha. The search for the most suitable model to measure mutual fund performance will be addressed along two lines. First, we are interested in the statistical significance of adding more factors to the single factor model. Second, we focus on the economic importance of more elaborate model specifications. The added value of the present study lies both in the step‐wise process of identifying relevant factors, and the use of a rich US mutual fund database that was recently released by the Center for Research in Security Prices.  相似文献   
8.
Three denim jeans products from the same manufacturer with differentiated pricing and labels (antiqued, sandblasted, and stonewashed) were used to determine the relationship between price and quality. Both qualitative and quantitative procedures were used to analyse the garments. All three jeans were made of twill weave with 3 × 1 repeat. Both structural and performance characteristics were compared using standardized tests. Analysis of variance was used to compare the selected structural and performance characteristics among the three jeans products. Tukey’s HSD tests were used for post hoc multiple comparisons for three jeans. The findings revealed that despite the fact that all three jeans products were from the same store, and that the fabrics used the same weave, degree and direction of twist, the jeans differed significantly for several structural and performance characteristics. Several possibilities for future research were explored.  相似文献   
9.
Biosecurity and wine tourism   总被引:1,自引:0,他引:1  
  相似文献   
10.
广州旅游文化资源开发总体构想框架   总被引:18,自引:0,他引:18  
梁明珠 《经济地理》2002,22(5):628-632
城市现代化过程中的趋同化问题,引好了广州市政府推动旅游与城市文化结合的思路和政策导向。文中分析了广州市开发此类资源的潜力和优势,提出了广州市旅游文化资源开发构想框架,并由微观、中观到宏观的探讨,提出了近期操作切入点的选择、旅游线网片开发的思考、整合城市优势和凸现岭南文化特色等方面的建议。  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