全文获取类型
收费全文 | 68874篇 |
免费 | 1104篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 12455篇 |
工业经济 | 4631篇 |
计划管理 | 11016篇 |
经济学 | 15519篇 |
综合类 | 1038篇 |
运输经济 | 372篇 |
旅游经济 | 932篇 |
贸易经济 | 12377篇 |
农业经济 | 2563篇 |
经济概况 | 8359篇 |
信息产业经济 | 45篇 |
邮电经济 | 672篇 |
出版年
2021年 | 321篇 |
2020年 | 566篇 |
2019年 | 828篇 |
2018年 | 3114篇 |
2017年 | 2939篇 |
2016年 | 2147篇 |
2015年 | 790篇 |
2014年 | 1226篇 |
2013年 | 5497篇 |
2012年 | 1917篇 |
2011年 | 3419篇 |
2010年 | 3048篇 |
2009年 | 2994篇 |
2008年 | 2968篇 |
2007年 | 3115篇 |
2006年 | 1394篇 |
2005年 | 1551篇 |
2004年 | 1639篇 |
2003年 | 1659篇 |
2002年 | 1378篇 |
2001年 | 1134篇 |
2000年 | 1112篇 |
1999年 | 993篇 |
1998年 | 974篇 |
1997年 | 943篇 |
1996年 | 943篇 |
1995年 | 815篇 |
1994年 | 859篇 |
1993年 | 897篇 |
1992年 | 870篇 |
1991年 | 893篇 |
1990年 | 778篇 |
1989年 | 664篇 |
1988年 | 659篇 |
1987年 | 666篇 |
1986年 | 701篇 |
1985年 | 1017篇 |
1984年 | 948篇 |
1983年 | 907篇 |
1982年 | 858篇 |
1981年 | 772篇 |
1980年 | 811篇 |
1979年 | 752篇 |
1978年 | 627篇 |
1977年 | 584篇 |
1976年 | 458篇 |
1975年 | 477篇 |
1974年 | 432篇 |
1973年 | 402篇 |
1972年 | 301篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
101.
KENNETH J. KLASSEN JEFFREY A. PITTMAN MARGARET P. REED STEVE FORTIN 《Contemporary Accounting Research》2004,21(3):639-680
We provide evidence on the impact of tax incentives and financial constraints on corporate R&D expenditure decisions. We contribute to extant research by comparing R&D expenditures in the United States and Canada, thereby exploiting the differences in the two countries' R&D tax credit mechanisms and generally accepted accounting principles. The two tax incentive mechanism designs are consistent with differing views of the degree of financial constraints faced by firms in these economies. Our sample also allows us to explore the effects of capitalizing R&D on Canadian firms. Employing a matched design, we document relations between tax credit incentives and R&D spending consistent with both Canadian and U.S. public companies responding as though they are not financially constrained. We estimate that the Canadian credit system induces, on average, $1.30 of additional R&D spending per dollar of taxes forgone while the U.S. system induces, on average, $2.96 of additional spending. We also find that firms that capitalize R&D costs in Canada spend, on average, 18 percent more on R&D. Collectively, this evidence is important to the ongoing debates in both countries concerning the appropriate design of incentives for R&D and is consistent with the assumptions found in the U.S. tax credit system, but not those found in the Canadian system. 相似文献
102.
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
103.
This paper examines the long-run relationship between short-term and long-term interest rates (both nominal and real) in 19
countries, and explores the possibility that the relationship is statistically stable using Lc, MeanF, and SupF statistics
suggested by Hansen [1992]. Empirical results obtained from various cointegration techniques (Johansen, Phillips and Hansen,
Stock and Watson, and Park) and quarterly data (1973–1998) show considerable support for the expectations hypothesis in all
countries (except the United Kingdom). In a majority of cases, it is also found that a stable relationship exists between
the short-term and long-term interest rates. 相似文献
104.
Recent research has shown that, although still on a limited scale, the teaching of business ethics in UK higher education has been increasing in recent years. This paper reports on a postal questionnaire survey conducted to investigate the extent to which ethical issues are covered in the teaching of management accounting in higher education. The principal findings are that the majority of management accounting lecturers in the British Isles do not incorporate ethics. About a third of the respondents to the survey do address ethical issues, although about half of those say they do so only implicitly. Various factors underlying the findings and prospects for the future are discussed. 相似文献
105.
106.
107.
Lindon J. Robison Robert J. Myers & Marcelo E. Siles 《Review of Agricultural Economics》2002,24(1):44-58
Social capital is a person or group's sympathy for or sense of obligation to another person or group. This article introduces social capital into a neoclassical model of farmland exchange and shows how relationships alter the terms of trade. Empirical evidence from a survey of farmers shows that the type of relationship farmland sellers have with farmland buyers has a statistically significant and economically important effect on the minimum-sell price for farmland. Compared to the minimum-sell price when selling to a total stranger in an arm's-length transaction, farmland sellers discount prices to friendly neighbors and relatives and require a premium from unfriendly neighbors and influential people in the community. 相似文献
108.
Traditional methods of estimating market volatility use daily return observations from a stock index to calculate monthly variance. We break with tradition and estimate stock market volatility using the daily, cross-sectional standard deviation of returns for all firms trading on the New York Stock Exchange and the American Stock Exchange. We find a significantly positive relation between risk and return. Market volatility is estimated to be about half the volatility level previously reported. The intraday, cross-sectional market volatility measure provides findings consistent with risk-return theory. 相似文献
109.
Abstract State sponsored employment agencies are an important source of job matching in Britain. This study tracks Jobcentre use in Britain over the previous decade and the effectiveness of Jobcentre use in securing entry into employment for those who utilise its services. Amongst the unemployed, use of Jobcentres is highly counter-cyclical. This can be attributed principally to the changing composition of the stock over the economic cycle. In good times, there are relatively more short duration, voluntary quits in the stock, who tend to rely on Jobcentres least. Jobcentres are found to have a significant positive effect on the job entry rates of its clients. The greatest beneficial impact is amongst those, the low skilled and the long term unemployed with the lowest exit rates from unemployment. 相似文献
110.