全文获取类型
收费全文 | 21588篇 |
免费 | 117篇 |
专业分类
财政金融 | 3863篇 |
工业经济 | 1670篇 |
计划管理 | 3824篇 |
经济学 | 4472篇 |
综合类 | 225篇 |
运输经济 | 154篇 |
旅游经济 | 330篇 |
贸易经济 | 3225篇 |
农业经济 | 958篇 |
经济概况 | 2977篇 |
信息产业经济 | 1篇 |
邮电经济 | 6篇 |
出版年
2021年 | 147篇 |
2020年 | 252篇 |
2019年 | 345篇 |
2018年 | 448篇 |
2017年 | 448篇 |
2016年 | 422篇 |
2015年 | 278篇 |
2014年 | 465篇 |
2013年 | 2139篇 |
2012年 | 602篇 |
2011年 | 662篇 |
2010年 | 606篇 |
2009年 | 674篇 |
2008年 | 597篇 |
2007年 | 516篇 |
2006年 | 486篇 |
2005年 | 400篇 |
2004年 | 412篇 |
2003年 | 404篇 |
2002年 | 401篇 |
2001年 | 440篇 |
2000年 | 456篇 |
1999年 | 402篇 |
1998年 | 380篇 |
1997年 | 373篇 |
1996年 | 342篇 |
1995年 | 344篇 |
1994年 | 305篇 |
1993年 | 374篇 |
1992年 | 324篇 |
1991年 | 348篇 |
1990年 | 327篇 |
1989年 | 308篇 |
1988年 | 280篇 |
1987年 | 269篇 |
1986年 | 298篇 |
1985年 | 381篇 |
1984年 | 396篇 |
1983年 | 339篇 |
1982年 | 313篇 |
1981年 | 291篇 |
1980年 | 330篇 |
1979年 | 281篇 |
1978年 | 230篇 |
1977年 | 223篇 |
1976年 | 200篇 |
1975年 | 182篇 |
1974年 | 149篇 |
1973年 | 156篇 |
1972年 | 123篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
This paper examines the common stock returns of three groups of bidders that purchased brokerage houses. Only in the cases of horizontal mergers, one brokerage house purchasing another, are there abnormal returns associated with the purchase. Neither bank holding company bidders nor non-financial bidders gain significantly when purchasing a brokerage house. Bank holding company bidders face considerable regulatory delays, and these economic disturbances may eliminate their gains. Bank holding company expansion into these non-bank activities does not appear, at the time of announcement, to either hurt or benefit them; hence, this expansion does not appear to further the loss exposure of the Federal Deposit Insurance Corporation. 相似文献
12.
13.
14.
15.
Steven C. Hall 《Journal of Business Finance & Accounting》1993,20(4):613-621
This study investigates whether economic consequences have an effect on the length of the period over which goodwill is amortized. It finds that there is a significant relationship between the size of the firm and the length of the amortization period. It also finds, when the only firms included in the sample are those reporting debt covenant restrictions dependent in part on goodwill accounting, evidence that the length of the amortization period for goodwill is related to the firm's leverage. 相似文献
16.
Martin C. Spechler 《Review of Industrial Organization》1991,6(3):189-198
Widely publicized reform programs for East Europe which emphasize rapid privatization are questioned on the grounds that structural changes to assure workable competition take precedence and will take years. A mix of deconcentrated state, cooperative, worker-owned, private, and foreignowned business can be workable. Import competition and antitrust legislation have auxiliary roles. 相似文献
17.
C. N. V. Krishnan 《The Journal of Financial Research》2004,27(4):461-479
I examine the aggregate expected profit generated by informed traders of diverse ability in a competitive market. I assume that efficient traders get perfect information on asset values whereas inefficient traders get noisy information. In the presence of order size restrictions, I show that the aggregate expected profit generated by efficient and inefficient traders together can be higher than that generated by efficient traders alone. Thus, inefficient traders can create value in a constrained trading environment. 相似文献
18.
Chiraphol N. Chiyachantana Christine X. Jiang Nareerat Taechapiroontong Robert A. Wood 《The Financial Review》2004,39(4):549-577
This study examines the impact of Regulation Fair Disclosure (FD) on liquidity, information asymmetry, and institutional and retail investors trading behavior. Our main findings suggest three conclusions. First, Regulation FD has been effective in improving liquidity and in decreasing the level of information asymmetry. Second, retail trading activity increases dramatically after earnings announcements but there is a significant decline in institutional trading surrounding earnings announcements, particularly in the pre‐announcement period. Last, the decline in information asymmetry around earnings announcements is closely associated with a lower participation rate in the pre‐announcement period and more active trading of retail investors after earnings releases. 相似文献
19.
Bayesian MCMC Mapping of Quantitative Trait Loci in a Half-sib Design: a Graphical Model Perspective
N.A. Sheehan B. Gulbrandtsen M.S. Lund D.A. Sorensen 《Revue internationale de statistique》2002,70(2):241-267
Graphical models provide a powerful and flexible approach to the analysis of complex problems in genetics. While task-specific software may be extremely efficient for any particular analysis, it is often difficult to adapt to new computational challenges. By viewing these genetic applications in a more general framework, many problems can be handled by essentially the same software. This is advantageous in an area where fast methodological development is essential. Once a method has been fully developed and tested, problem-specific software may then be required. The aim of this paper is to illustrate the potential use of a graphical model approach to genetic analyses by taking a very simple and well-understood problem by way of example. 相似文献
20.
We suggest that the medium-term note market provides an excellent laboratory for exploring the relationships between yield, liquidity, and the label affixed to a financial instrument. Crabbe and Turner (1995) examined the liquidity issue and uncovered the counter-intuitive result that issue size is unrelated to liquidity. Their study failed to examine a potential channel for a liquidity effect, however, in the form of multiple issues from a single, typically large, MTN registration filing. We find evidence that file size is significantly related to yield in a number of instances. Several other proxies for liquidity, such as frequency of issue, are also sometimes significantly related to yields. Contrary to Crabbe and Turner (1995) , we find that labeling a security an MTN can have an impact on its yield. The label "note" also appears to matter for yield in some instances. 相似文献