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   2150篇
  免费   89篇
  国内免费   1篇
财政金融   417篇
工业经济   196篇
计划管理   344篇
经济学   451篇
综合类   17篇
运输经济   10篇
旅游经济   24篇
贸易经济   394篇
农业经济   106篇
经济概况   163篇
水利工程   114篇
邮电经济   4篇
  2023年   15篇
  2022年   12篇
  2021年   33篇
  2020年   52篇
  2019年   70篇
  2018年   75篇
  2017年   85篇
  2016年   71篇
  2015年   56篇
  2014年   79篇
  2013年   294篇
  2012年   85篇
  2011年   93篇
  2010年   100篇
  2009年   88篇
  2008年   94篇
  2007年   73篇
  2006年   93篇
  2005年   67篇
  2004年   47篇
  2003年   76篇
  2002年   75篇
  2001年   44篇
  2000年   40篇
  1999年   43篇
  1998年   40篇
  1997年   35篇
  1996年   18篇
  1995年   17篇
  1994年   13篇
  1993年   18篇
  1992年   19篇
  1991年   12篇
  1990年   13篇
  1989年   11篇
  1988年   20篇
  1987年   8篇
  1986年   15篇
  1985年   25篇
  1984年   15篇
  1983年   14篇
  1982年   8篇
  1981年   9篇
  1980年   7篇
  1979年   9篇
  1978年   11篇
  1977年   6篇
  1975年   5篇
  1974年   5篇
  1973年   6篇
排序方式: 共有2240条查询结果,搜索用时 15 毫秒
31.
In 1972, the US and Canada committed to restore the chemical, physical, and biological integrity of the Great Lakes Ecosystem under the first Great Lakes Water Quality Agreement. During subsequent amendments, part of the St. Lawrence River at Massena NY, and segments of three tributaries, were designated as one Area of Concern (AOC) due to various beneficial use impairments (BUIs). Plankton beneficial use was designated impaired within this AOC because phytoplankton and zooplankton population data were unavailable or needed “further assessment”. Contaminated sediments from industrial waste disposal have been largely remediated, thus, the plankton BUI may currently be obsolete. The St. Lawrence River at Massena AOC remedial action plan established two criteria which may be used to assess the plankton BUI; the second states that, “in the absence of community structure data, plankton bioassays confirm no toxicity impact in ambient waters”. This study was implemented during 2011 to determine whether this criterion was achieved. Acute toxicity and chronic toxicity of local waters were quantified seasonally using standardized bioassays with green alga Selenastrum capricornutum and water flea Ceriodaphnia dubia to test the hypothesis that waters from sites within the AOC were no more toxic than were waters from adjacent reference sites. The results of univariate and multivariate analyses confirm that ambient waters from most AOC sites (and seasons) were not toxic to both species. Assuming both test species represent natural plankton assemblages, the quality of surface waters throughout most of this AOC should not seriously impair the health of resident plankton communities.  相似文献   
32.
While historians have for a long time recognized the importance of the First World War to the general flow of history, business economists do not fully appreciate the impact of the war on commercial relationships. The First World War transformed the political, economic, and social context, in which business was done, forcing companies to develop new strategies and activities, some of which were almost unimaginable before August 1914. This article focuses on one aspect of doing business: foreign exchange management. It argues that Schering AG and its parent, like many German companies after the First World War, were obliged to refocus their activities around their foreign exchange exposures and that the management of foreign exchange issues contributed to a much tighter relationship between businesses, government, and business associations than had existed before the war and for which some aspects of Germany's system of corporate control were not well adapted to handle.  相似文献   
33.
34.
This study examines the association between activity-based costing and manufacturing performance. Results using a cross-sectional sample of manufacturing plants indicates that extensive ABC use is associated with higher quality levels and greater improvements in cycle time and quality, and is indirectly associated with manufacturing cost reductions through quality and cycle time improvements. However, on average, extensive ABC use has no significant association with return on assets. Instead, we find weak evidence that the association between ABC and accounting profitability is contingent on the plant's operational characteristics.  相似文献   
35.
This study sought to measure the economic consequences of reduced expenditure on specific sections of the UK National Measurement System (NMS), part of the state-funded technological infrastructure. A method was developed which can be adapted to any publicly or privately financed R&D of which the benefits and cost-effectiveness are unclear or contested.
The recent interactions between the NMS and industry were investigated empirically. Five mechanisms were found to account for the majority of instances of successful value creation. Several case studies of each mechanism were collected, illustrating their existence beyond reasonable doubt.
Each of the cut projects would have been expected to have encouraged growth and profitability in identified sectors of the economy through one or more of these five mechanisms. The effects of the cuts were modelled over 30 years. Compared to the costs of the cut projects projected over the same period, the benefits to the economy were predicted to exceed the costs.  相似文献   
36.
The last thirty years have witnessed the appearance and rapid expansion of Islamic banking both inside and outside the Islamic world. Islamic banks provide financial products that do not violate Sharia , the Islamic law of human conduct. The Islamic principles upon which the banks claim to operate give an important role to social issues. Applying these principles, we develop a benchmark set of social disclosures appropriate to Islamic banks. These are then compared, using a disclosure index approach, the actual social disclosures contained in the annual reports of twenty-nine Islamic banks (located in sixteen countries) to this benchmark. In addition, content analysis is undertaken to measure the volume of social disclosures. Our analysis suggests that social reporting by Islamic banks falls significantly short of our expectations. The results of the analysis also suggest that banks required to pay the Islamic religious tax Zakah provide more social disclosures than banks not subject to Zakah .  相似文献   
37.
On July 13, 2006, the Min istry of Information Indus try of the People's Repub lic of China ("MII") issued a new notice concerning foreign-invested telecom and internet companies in China. MII's "Notice on Strengthening Regulation of Foreign Investment in and Operations of Value-Added Telecom Services" (the "MII Circular"), further clarifies the existing regulatory framework governing foreign investment in internet and other value-added telecommunications (" VATS ") businesses in China.  相似文献   
38.
This article examines the cointegration level, changes in the existence and directions of causality of the foreign exchange (FX) rates in the Asian and emerging markets during the 1990s financial crises. Engle and Granger's simple bivariate and Johansen's multivariate cointegrations are applied to the FX rates for the 1994 Mexican, 1997 Asian, 1998 Russian, and 1999 Brazilian crises. In addition, the article conducts the Granger causality test and impulse response analysis to examine the causality pattern in all the FX rates. The analysis shows most of the pre-Mexican causality disappears and significant numbers of new causality emerge in the 1994 Mexican crisis while the 1997 Asian crisis generates significant spillover effects into the later part of the 1998 Russian and 1999 Brazilian crises.  相似文献   
39.
This study examines the contribution of Raymond J. Chambers to the British inflation accounting debate in the early‐to‐mid 1970s, from the perspective of the reception of his book, Securities and Obscurities: A Case for Reform of the Law of Company Accounts, published in 1973. To structure the empirical narrative, drawing on previously unpublished documents from the R. J. Chambers Archives, we employ Czarniawska and Joerges’ ( 1996 ) notion of the ‘travel of ideas’, and Mumford’s ( 1979 ) observation of the existence of ‘inflation accounting debate cycles’. The result is a narrative that traces the environmental and material circumstances that led to Chambers’ book having a lesser impact on the British inflation debate than one would expect based on the international exposure of his ideas, his influence at the time, and the empirical rigour of his proposal. The purpose of this exercise is to assess how contextual factors, such as the choice of publisher, use of promotional material, and distribution methods, can be as (or more) important than the substance of the proposed ideas, arguments, and solutions.  相似文献   
40.
ABSTRACT

Fraud is a growing challenge for English local government, yet the resources and support local authorities (LAs) have available to prevent, detect and investigate it are limited. Forensic accounting services (FAS) provided by external specialist private sector firms, particularly those undertaking mandatory external audit, might be one solution. Research reported in this paper suggests, however, that existing English LA users are not all convinced. Nevertheless, better awareness and understanding of what FAS have to offer, perhaps through case studies of successful implementation, would be a valuable contribution to helping local government enhance its counter-fraud capabilities and make informed decisions about how best to meet the increasingly complex fraud challenge.  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