全文获取类型
收费全文 | 3821篇 |
免费 | 76篇 |
专业分类
财政金融 | 453篇 |
工业经济 | 949篇 |
计划管理 | 633篇 |
经济学 | 994篇 |
综合类 | 47篇 |
运输经济 | 15篇 |
旅游经济 | 102篇 |
贸易经济 | 426篇 |
农业经济 | 83篇 |
经济概况 | 195篇 |
出版年
2023年 | 11篇 |
2021年 | 22篇 |
2020年 | 38篇 |
2019年 | 67篇 |
2018年 | 61篇 |
2017年 | 61篇 |
2016年 | 45篇 |
2015年 | 27篇 |
2014年 | 64篇 |
2013年 | 226篇 |
2012年 | 150篇 |
2011年 | 436篇 |
2010年 | 338篇 |
2009年 | 262篇 |
2008年 | 210篇 |
2007年 | 207篇 |
2006年 | 189篇 |
2005年 | 146篇 |
2004年 | 111篇 |
2003年 | 105篇 |
2002年 | 109篇 |
2001年 | 69篇 |
2000年 | 55篇 |
1999年 | 52篇 |
1998年 | 49篇 |
1997年 | 41篇 |
1996年 | 47篇 |
1995年 | 24篇 |
1994年 | 27篇 |
1993年 | 29篇 |
1992年 | 36篇 |
1991年 | 28篇 |
1990年 | 24篇 |
1989年 | 25篇 |
1988年 | 33篇 |
1987年 | 23篇 |
1986年 | 23篇 |
1985年 | 58篇 |
1984年 | 34篇 |
1983年 | 41篇 |
1982年 | 40篇 |
1981年 | 23篇 |
1980年 | 34篇 |
1979年 | 31篇 |
1978年 | 18篇 |
1977年 | 24篇 |
1976年 | 14篇 |
1975年 | 21篇 |
1974年 | 15篇 |
1973年 | 13篇 |
排序方式: 共有3897条查询结果,搜索用时 62 毫秒
11.
Pedro Conceição Author Vitae Giorgio Sirilli Author Vitae 《Technological Forecasting and Social Change》2004,71(6):553-578
The structure and financing of science and technology activities are undergoing a slow, but profound, change. This change can be briefly characterized as a shift from relying and supporting public science to a stronger emphasis on “market-based” incentives for science and technology. In this paper we analyze this shift in a historical perspective, discussing both the theoretical explanations and the empirical trends of the ongoing change. While we do not claim to provide a comprehensive and exhaustive identification of the causes of this shift, we argue that it is largely driven by the perception of a shift of the U.S. policy towards market-based, rather than publicly supported, incentives for science and technology. This, in turn—given the strong economic performance of the United States over the 1990s—has influenced policies in most OECD countries, especially in Europe.We conclude by analyzing the evolution of research in U.S. higher education and find two major trends: an increasing diversity in the number of institutions of different types other than universities and a steady and continuous public funding of the leading U.S. universities. This has allowed the construction of an infrastructure now used largely by the private sector, but it also noted that the United States has not compromised public support for core areas or in those fields in which there is a clear perception that market incentives are not sufficient for meeting the strategic targets of the U.S. policy. The implication is that there is a considerable policy diversity in the U.S. practice and that all aspects of this diversity should be considered when using the United States as a reference. 相似文献
12.
Much of the discussion about banking and commerce in America has failed to make several crucial distinctions and has not accounted for many arrangements that have promoted the mixing of these activities. We investigate the history of banking and commerce in the United States, looking both at bank control of commercial firms and commercial firms' control of banks. We trace how these controls have changed with shifting definitions of "bank" and changing methods of "control." Despite the regulations prohibiting some arrangements that promote financial control, we find evidence of extensive linkages between banking and commerce in the United States. These linkages usually build on devices that are very close substitutes to the arrangements prohibited by law. Altogether, our findings question the often made claim that traditionally banking in the United States has been separated from commerce. Furthermore, given that research on Japan and Germany has shown that the mixing of banking and commerce matters for a variety of issues, our evidence also raises some questions on similar research in the United States which makes the simplifying assumption that these industries are separated. 相似文献
13.
14.
Joseph Golec 《The Journal of Financial Research》2003,26(1):19-30
In this article I explain why asset‐based fees are common for mutual fund management companies and why the average fee has increased recently. I argue that Securities and Exchange Commission fee regulations make alternative fee types illegal or unattractive. Management companies can maintain higher fees because regulations and brand‐name capital partly insulate them from competition and because investors cannot easily distinguish between performance‐oriented and marketing‐oriented fund companies. Index funds and unit investment trusts may offer competition to mutual funds in the future because they are designed to minimize management fees. 相似文献
15.
Chris Holmes Author Vitae Mike Ferrill Author Vitae 《Technological Forecasting and Social Change》2005,72(3):349-357
In order to aid Singaporean SMEs identify and select emerging technologies for business benefit, a modified process of the Cambridge T-Plan methodology has been introduced and applied to a pilot sample of 30 companies in a variety of manufacturing sectors. This fast and simple process takes the company through five key steps to enable them to create their first Operation and Technology Roadmap (OTR). The paper explains the background to the approach and focuses on the initial benefits identified by a survey of the pilot companies. 相似文献
16.
Murray J. Côté Author Vitae 《Socio》2005,39(2):183-192
Capacity planning and resource allocation are crucial to the cost-effective delivery of health care services. In this paper, we present an analytic approach based on a modified version of the Holt-Winters multiplicative seasonality forecasting model to determine the frequency distribution associated with a hospital care unit's census. This paper is a follow-up to the census frequency distribution simulation model described in Lapierre et al. (Socio Econ. Plan. Sci. 33 (1999) 25). We demonstrate that our model can provide census frequency distributions equivalent to the simulation model of Lapierre et al. [1], but without the computational effort common to simulation models. 相似文献
17.
Joseph A. Russo Jr. 《International Advances in Economic Research》1997,3(4):409-422
Learning during performance of auditing tasks in the field is modeled as a change in the state of an auditor's knowledge base that results from experience during performance of a task. Several hypotheses are proposed and, along with data obtained by means of behavior observation and concurrent verbal protocols, used to interpret the problem-solving behaviors of four first-year auditors who performed an unfamiliar but audit-related task in simulated auditing environments. Significant findings of learning during performance of the experimental task are reported. While the data show that the auditor-subjects continuously encountered new learning situations throughout the task, they are inconclusive regarding learning through improved knowledge content. On the other hand, significant evidence is found that the learning that did occur was manifest by a greater availability of the auditor-subjects' knowledge. The implications of these findings in terms of the nature of audit tasks and the development of more expert-like task behavior are discussed. 相似文献
18.
19.
This study uses data on intra-day transactions to analyze whether real estate investment (REIT) liquidity as measured by the bid-ask spread changed from 1990 to 1994, a period during which the industry's market capitalization increased from $8.7 billion to $45 billion. REIT percentage spreads (spread as percentage of share price) narrowed significantly, primarily attributable to higher share prices rather than narrower dollar-value spreads. An empirical model is used to analyze the determinants of percentage spreads. Return variance and share price, not market capitalization are found to be the primary determinants of percentage spreads in both periods. This suggests that the liquidity of REIT securities is similar to that of non-REIT securities with similar prices and return variance. In addition, percentage spreads are wider for REITs trading on the NASDAQ. 相似文献
20.