全文获取类型
收费全文 | 46088篇 |
免费 | 965篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 8754篇 |
工业经济 | 3486篇 |
计划管理 | 7897篇 |
经济学 | 10646篇 |
综合类 | 518篇 |
运输经济 | 301篇 |
旅游经济 | 740篇 |
贸易经济 | 7523篇 |
农业经济 | 2240篇 |
经济概况 | 4794篇 |
信息产业经济 | 5篇 |
邮电经济 | 150篇 |
出版年
2021年 | 263篇 |
2020年 | 525篇 |
2019年 | 779篇 |
2018年 | 852篇 |
2017年 | 976篇 |
2016年 | 950篇 |
2015年 | 649篇 |
2014年 | 1028篇 |
2013年 | 4863篇 |
2012年 | 1375篇 |
2011年 | 1514篇 |
2010年 | 1249篇 |
2009年 | 1471篇 |
2008年 | 1336篇 |
2007年 | 1265篇 |
2006年 | 1197篇 |
2005年 | 1071篇 |
2004年 | 948篇 |
2003年 | 1022篇 |
2002年 | 939篇 |
2001年 | 1004篇 |
2000年 | 968篇 |
1999年 | 857篇 |
1998年 | 938篇 |
1997年 | 903篇 |
1996年 | 857篇 |
1995年 | 774篇 |
1994年 | 782篇 |
1993年 | 754篇 |
1992年 | 793篇 |
1991年 | 825篇 |
1990年 | 701篇 |
1989年 | 542篇 |
1988年 | 570篇 |
1987年 | 546篇 |
1986年 | 561篇 |
1985年 | 822篇 |
1984年 | 803篇 |
1983年 | 722篇 |
1982年 | 703篇 |
1981年 | 726篇 |
1980年 | 666篇 |
1979年 | 653篇 |
1978年 | 542篇 |
1977年 | 435篇 |
1976年 | 438篇 |
1975年 | 399篇 |
1974年 | 360篇 |
1973年 | 336篇 |
1972年 | 238篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
21.
Ian M. Dobbs† 《Journal of Business Finance & Accounting》2004,31(5-6):729-757
Replacement investment is essentially a regenerative optimal stopping problem; that is, the key decision concerns when to terminate the life of existing plant – and hence when to start over again. This paper examines this optimisation problem within a continuous time framework and studies the qualitative and quantitative impact of uncertainty on the timing of new investment (and the criteria that should be used for terminating the life of existing plant). 相似文献
22.
23.
This study examines the influence of day-of-the-week patterns in security returns on long-run IPO underperformance. Comparisons are made between the IPOs in Ritter's [20] database, and a constructed set of matching firms based on SIC code and size, using NYSE, AMEX, and NASDAQ securities. It is found that virtually all of the IPO underperformance occurs on Mondays and Tuesdays and that the degree of underperformance significantly differs from other days. Thus, a common explanation may exist for the general day-of-the-week pattern in security returns and IPO long-run underperformance. 相似文献
24.
25.
26.
In this paper the role of expenses in explaining closed-end fund discounts is re-examined. A present value model is developed to illustrate the relationship between expenses and discounts. Earlier studies find that discounts are not related to management fees. In this paper, using a larger sample over a longer and different period and a better specification of the expense variable consistent with the model developed, discounts are found to be significantly related to expenses. The relationship between expenses and discounts holds in the presence of other control variables. 相似文献
27.
M. Carole Macklin 《心理学和销售学》1994,11(3):291-311
Young children's memory for television advertising is important in order for children to recognize brands in stores and/or to recall the brand name in making a purchase request. Two experiments showed that the use of visual advertising retrieval cue (a green frog as the brand character) improved memory performance and brand evaluations. Study 1 (n = 40) showed promise in the cue's assistance in children's recalling the brand name (cued recall) from the ad memory trace. Study 2 (n = 40) contained multiple exposures to the ad, which resulted in greater free recall and in support for the cue's assistance in better access of the brand name from the ad memory trace (cued recall). Affected ad memory resulted in more favorable brand evaluations and intent to request the brand's purchase. © 1994 John Wiley & Sons, Inc. 相似文献
28.
29.
In this paper we offer a method for deciding how to aggregate a set of elementary industries. The method is then applied to the problem of estimating a wage equation that allows for industry-specific effects. Our method explicitly formalizes the trade-off between goodness-of-fit and parsimony implicit in an aggregation problem. By varying the parameter of the assumed loss function, one obtains a whole sequence of aggregation levels. Further, the resulting sequence is consistent; that is, groupings formed at one level of aggregation will never be undone when one aggregates further. 相似文献
30.
John Stittle 《公共资金与管理》2002,22(1):49-54
Railtrack plc, floated in 1996, was the private sector owner of Britain's railway track, signals and stations. Its major source of revenue came from track access charges, which individual train operating companies (TOCs) paid for use of the infrastructure. Since many of these TOCs received substantial subsidies to assist in paying their track access charges, Railtrack was in effect being heavily subsidised. In October 2001, the Government decided that these arrangements were no longer viable and placed Railtrack into administration. This article explains how the level of indirect subsidies to Railtrack had become excessive, and raises crucial questions that need to be addressed in settling the future shape of the railway industry. 相似文献