全文获取类型
收费全文 | 41121篇 |
免费 | 539篇 |
专业分类
财政金融 | 6975篇 |
工业经济 | 2520篇 |
计划管理 | 6734篇 |
经济学 | 9589篇 |
综合类 | 704篇 |
运输经济 | 192篇 |
旅游经济 | 394篇 |
贸易经济 | 8366篇 |
农业经济 | 1199篇 |
经济概况 | 4303篇 |
信息产业经济 | 47篇 |
邮电经济 | 637篇 |
出版年
2023年 | 118篇 |
2021年 | 170篇 |
2020年 | 321篇 |
2019年 | 509篇 |
2018年 | 2807篇 |
2017年 | 2595篇 |
2016年 | 1789篇 |
2015年 | 459篇 |
2014年 | 697篇 |
2013年 | 2650篇 |
2012年 | 1270篇 |
2011年 | 2771篇 |
2010年 | 2493篇 |
2009年 | 2292篇 |
2008年 | 2228篇 |
2007年 | 2479篇 |
2006年 | 733篇 |
2005年 | 956篇 |
2004年 | 972篇 |
2003年 | 1105篇 |
2002年 | 725篇 |
2001年 | 597篇 |
2000年 | 537篇 |
1999年 | 456篇 |
1998年 | 524篇 |
1997年 | 461篇 |
1996年 | 474篇 |
1995年 | 381篇 |
1994年 | 393篇 |
1993年 | 381篇 |
1992年 | 396篇 |
1991年 | 404篇 |
1990年 | 368篇 |
1989年 | 276篇 |
1988年 | 294篇 |
1987年 | 288篇 |
1986年 | 283篇 |
1985年 | 409篇 |
1984年 | 381篇 |
1983年 | 369篇 |
1982年 | 321篇 |
1981年 | 304篇 |
1980年 | 314篇 |
1979年 | 306篇 |
1978年 | 240篇 |
1977年 | 205篇 |
1976年 | 196篇 |
1975年 | 182篇 |
1974年 | 163篇 |
1973年 | 159篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
2.
Marketing online banking services: The voice of the customer 总被引:1,自引:1,他引:0
US banks have invested heavily in developing online capabilities, with the expectation of migrating customers to the new cheaper delivery system. Results in the USA thus far have been mixed at best; market penetration is low and customer usage is sporadic, focusing mainly on simple tasks. This paper reports on the first of two studies conducted to investigate the reasons for the mediocre performance. A qualitative consumer study revealed significant differences in attitudes and opinions between early users and those that banks hope will adopt next. Most importantly, future prospects could be characterised as indifferent about online banking; many were not convinced about its benefits and the value it provides. While the potential to expand the market for online banking services exists, banks need to re-examine their marketing approach. 相似文献
3.
Differences between bank employees' perceptions towards implications of electronic banking in Greece
Konstantinos Lymberopoulos Ioannis E Chaniotakis 《Journal of Financial Services Marketing》2003,8(1):35-47
This paper aims to identify both the Greek branch and the central division employees' perceptions towards implications of electronic banking adoption and explore whether there are any differences between them. To this end, based on 14 potential implications recognised in the literature review, a questionnaire was designed and completed by 613 bank employees. The analysis showed that perceptions vary in relation to respondents' working position. Additionally, there are indications that the identified differences are greater if they are linked with the respondents' working experience and educational qualifications, as well as the size of the financial institution. In conclusion, the paper discusses the strategic implications of the findings. 相似文献
4.
The paper argues that although considerations such as industry consolidation, the role of lending and the effects of technology are still important in shaping the future of investment banking, sustainable competitive advantage necessitates that emphasis is also placed on thought leadership. This entails quite a radical change in terms of the way in which the industry approaches the problem of competition and requires emphasis on value creation for all the constituent parts of the industry: corporations, investors, the banks themselves and research departments. Accordingly, the paper provides a rationale for this change and provides inter alia a range of examples to illustrate how thought leadership could lead to a fundamental change in the future of the investment banking industry. 相似文献
5.
We argue that charismatic leadership can influence external support for the organization, particularly in making the company more attractive to outside investors. Two studies were conducted to test this general hypothesis. First, an archival study demonstrated that the stock of companies headed by charismatic leaders appreciated more than the stock of comparable companies, even after differences in corporate performance were controlled. It was also found that the effect of charismatic leadership was heightened under more difficult economic conditions. Second, an experiment was conducted in which the salience of charismatic leadership was manipulated, along with information about the prospects for an organization's turnaround. Results showed that appeals from a charismatic leader led to increased investment in the firm, and the leader's influence was greater when the prospects for an organizational turnaround were more difficult. It was also found that an endowment of stock enhanced the influence of charismatic appeals and that charismatic leadership may have affected the general risk propensities of followers. These findings were interpreted in terms of an external perspective on leadership, illustrating how leaders can manage the firm's economic and social environment. Copyright © 2004 John Wiley & Sons, Ltd. 相似文献
6.
A play-the-winner-type urn design with reduced variability 总被引:1,自引:0,他引:1
Anastasia Ivanova 《Metrika》2003,58(1):1-13
We propose a new adaptive allocation rule, the drop-the-loser, that randomizes subjects in the course of a trial comparing
treatments with dichotomous outcomes. The rule tends to assign more patients to better treatments with the same limiting proportion
as the randomized play-the-winner rule. The new design has significantly less variable allocation proportion than the randomized
play-the-winner rule. Decrease in variability translates into a gain in statistical power. For some values of success probabilities
the drop-the-loser rule has a double advantage over conventional equal allocation in that it has better power and assigns
more subjects to the better treatment.
Acknowledgments. I thank Stephen Durham, the associate editor, and the referees for their helpful suggestions. 相似文献
7.
8.
The Local Whittle Estimator of Long-Memory Stochastic Volatility 总被引:1,自引:0,他引:1
We propose a new semiparametric estimator of the degree of persistencein volatility for long memory stochastic volatility (LMSV) models.The estimator uses the periodogram of the log squared returnsin a local Whittle criterion which explicitly accounts for thenoise term in the LMSV model. Finite-sample and asymptotic standarderrors for the estimator are provided. An extensive simulationstudy reveals that the local Whittle estimator is much lessbiased and that the finite-sample standard errors yield moreaccurate confidence intervals than the widely-used GPH estimator.The estimator is also found to be robust against possible leverageeffects. In an empirical analysis of the daily Deutsche Mark/USDollar exchange rate, the new estimator indicates stronger persistencein volatility than the GPH estimator, provided that a largenumber of frequencies is used. 相似文献
9.
10.