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   1093篇
  免费   55篇
财政金融   182篇
工业经济   97篇
计划管理   197篇
经济学   181篇
综合类   18篇
运输经济   15篇
旅游经济   42篇
贸易经济   234篇
农业经济   58篇
经济概况   122篇
邮电经济   2篇
  2022年   6篇
  2021年   11篇
  2020年   25篇
  2019年   53篇
  2018年   28篇
  2017年   34篇
  2016年   42篇
  2015年   41篇
  2014年   36篇
  2013年   135篇
  2012年   43篇
  2011年   66篇
  2010年   59篇
  2009年   50篇
  2008年   35篇
  2007年   30篇
  2006年   36篇
  2005年   31篇
  2004年   16篇
  2003年   42篇
  2002年   36篇
  2001年   25篇
  2000年   28篇
  1999年   19篇
  1998年   17篇
  1997年   14篇
  1996年   9篇
  1995年   10篇
  1994年   15篇
  1993年   12篇
  1992年   8篇
  1991年   7篇
  1990年   12篇
  1989年   6篇
  1988年   7篇
  1987年   7篇
  1986年   4篇
  1985年   8篇
  1984年   8篇
  1983年   12篇
  1982年   4篇
  1980年   9篇
  1979年   11篇
  1978年   6篇
  1975年   3篇
  1974年   3篇
  1973年   3篇
  1971年   3篇
  1969年   3篇
  1968年   3篇
排序方式: 共有1148条查询结果,搜索用时 234 毫秒
1.
Objective: This study was to determine if calcium fortification yields a higher price per serving in grocery store products. Researchers compared store brand to national brand grocery products in relation to cost in order to examine if calcium values were similar between store brand and national brand products. Methods: A total of 112 store brand and 211 national brand grocery products were collected from three low (national chain store), middle and high priced (Virginia and North Carolina regional store) grocery venues. Products were compared using price and calcium percentage per serving. ANOVA was used to determine between store brand and national brand for price per serving and calcium content, and between grocery venues. Results: National brand fortified products had a significantly lower mean price per serving when compared to national brand non-fortified products (p = 0.0002). There was no statistical difference between store brand fortified and non-fortified products (p = 0.9256). Low priced store brand products had the lowest mean price per serving ($0.34 ±0.24). Conclusions: This study found store brand products have similar calcium content as national brand products. Product cost was lower at low priced store compared to middle and high priced stores.  相似文献   
2.
3.
Private equity performance, both for buyouts and venture capital, has been highly cyclical: periods of high fundraising have been followed by periods of low performance. Despite this seemingly predictable variation, we find modest gains, at best, to pursuing realistic, investable strategies that time capital commitments to private equity. This occurs, in part, because investors can only time their commitments to funds; they cannot time when commitments are called or when investments are exited. There is a high degree of time-series correlation in net cash flows even across commitment strategies that allocate capital in a very different manner over time.  相似文献   
4.
Two decades ago, the rules governing the provision of piped municipal water supply in Mumbai became linked to the policy frameworks governing eligibility for a property titling scheme. This article outlines the ideological basis and practical implications of the shift, as well as the contradictions of the new regulatory regime. The article demonstrates how these contradictions have been mediated by the material and practical knowledge, embodied expertise, local authority and wide‐ranging socio‐political work of two sets of actors: municipal water engineers and a cast of characters known locally as ‘plumbers’. The social, political and hydraulic imaginaries animating the work of ‘plumbing’ are bound up with a temporal and spatial imaginary distinctly at odds with the network‐flow conception of hydraulic engineering within which the work of water supply planning and distribution in Mumbai is conceptualized, materialized and institutionalized. The hydraulic and legal contradictions of these clashing infrastructural idioms––of flow and event––have rendered the regulatory framework highly unstable. These contradictions eventually erupted in Mumbai's waterscape, leaving the city's water infrastructures suspended in a highly politicized state of limbo between dueling infrastructural imaginaries.  相似文献   
5.
Lisa 《走向世界》2006,(5):38-45
他们为什么出去?又为什么回来?他们都在哪儿?过着什么样的日子?上个世纪90年代出国的“海归”中,他们学历普遍是博士以上,现在更多的人是在做研究;而新世纪出国的“海归”,外面闯荡的经历则更多的给了他们创业的动力和激情。相同的是,他们都被济南特有的文化所吸引。  相似文献   
6.
Australian sugar-producing regions have differed in terms of the extent and rate of incorporation of new technology into harvesting systems. The Mackay sugar industry has lagged behind most other sugar-producing regions in this regard. The reasons for this are addressed by invoking an evolutionary economics perspective. The development of harvesting systems, and the role of technology in shaping them, is mapped and interpreted using the concept of path dependency. Key events in the evolution of harvesting systems are identified, which show how the past has shaped the regional development of harvesting systems. From an evolutionary economics perspective, the outcomes observed are the end result of a specific history.  相似文献   
7.
This commentary is a revised version of a speech that was delivered by the Honorable Thomas Harris to the Thunderbird community at the Glendale campus on February 6, 2001. Although the speech was delivered in 2001, its attendant concerns and arguments endure and are germane in today's global business considerations. Ambassador Harris is presently Her Majesty's Consul General and Director General of British Trade and Investment in the United States. Following his graduation from Cambridge University, Ambassador Harris joined the Board of Trade in 1966, and subsequently the British Diplomatic Service. His diplomatic career included stints in Tokyo, Washington, and Lagos. He has also held various appointments in the Foreign and Commonwealth Office. His most recent overseas posting was as British Ambassador to Korea between 1993 and 1997. He was later appointed Director General for Export Promotion in the Department of Trade and Investments (now known as British Trade International), before taking on his present assignments in New York. As Director General of British Trade and Investment, he has overall responsibility for the promotion of British trade throughout the U.S. and for securing investment by U.S. firms in the United Kingdom. In 1995, Ambassador Harris was appointed by Her Majesty, the Queen of England, to be a Companion of the Order of St. Michael and St. George (CMG). © 2002 Wiley Periodicals, Inc.  相似文献   
8.
9.
10.
This paper demonstrates that applications of existing approaches to measuring market orientation are myopic, non-comparative and over-reliant on the views of single respondents. Consequently, a multi-perspective, multi-informant approach for measuring market orientation is generated which focuses on gauging customers', competitors' and intra-organizational members' perceptions of the market orientation of an organization. To evaluate the psychometric properties of this approach an application of this design in a survey of manufacturing industry is subjected to tests for inter-rater reliability, scale reliability, content validity, criterion-related validity and construct validity. The conclusion of this evaluation is that the developed measure is both a reliable and valid means of gauging market orientation. The paper concludes with a series of implications for both theorists and practitioners.  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