全文获取类型
收费全文 | 42105篇 |
免费 | 870篇 |
专业分类
财政金融 | 7986篇 |
工业经济 | 3116篇 |
计划管理 | 7004篇 |
经济学 | 9398篇 |
综合类 | 444篇 |
运输经济 | 262篇 |
旅游经济 | 704篇 |
贸易经济 | 6565篇 |
农业经济 | 1962篇 |
经济概况 | 5451篇 |
信息产业经济 | 2篇 |
邮电经济 | 81篇 |
出版年
2021年 | 247篇 |
2020年 | 461篇 |
2019年 | 611篇 |
2018年 | 841篇 |
2017年 | 851篇 |
2016年 | 796篇 |
2015年 | 575篇 |
2014年 | 880篇 |
2013年 | 4248篇 |
2012年 | 1149篇 |
2011年 | 1278篇 |
2010年 | 1084篇 |
2009年 | 1229篇 |
2008年 | 1219篇 |
2007年 | 1095篇 |
2006年 | 1021篇 |
2005年 | 897篇 |
2004年 | 908篇 |
2003年 | 891篇 |
2002年 | 865篇 |
2001年 | 866篇 |
2000年 | 867篇 |
1999年 | 784篇 |
1998年 | 801篇 |
1997年 | 743篇 |
1996年 | 719篇 |
1995年 | 648篇 |
1994年 | 701篇 |
1993年 | 720篇 |
1992年 | 699篇 |
1991年 | 721篇 |
1990年 | 627篇 |
1989年 | 535篇 |
1988年 | 521篇 |
1987年 | 528篇 |
1986年 | 545篇 |
1985年 | 785篇 |
1984年 | 754篇 |
1983年 | 739篇 |
1982年 | 699篇 |
1981年 | 617篇 |
1980年 | 587篇 |
1979年 | 597篇 |
1978年 | 523篇 |
1977年 | 453篇 |
1976年 | 381篇 |
1975年 | 394篇 |
1974年 | 334篇 |
1973年 | 331篇 |
1972年 | 256篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
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
82.
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
83.
84.
85.
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
86.
S. J. Ho 《Journal of Economics》2008,93(1):31-58
This paper addresses two very old issues in human society: espionage and double crossing. Our major conclusion points out that there will be a serious over rewarding problem in the direct mechanism due to double
crossing in espionage, and a competitive mechanism with a relative performance regime can possibly mitigate the over rewarding
problem and still extract the information.
相似文献
87.
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
88.
Background risk can influence the performance of insurance markets that must deal with adverse selection when applicants are risk vulnerable, since they are more averse to bearing the insurable risk as a result of their exposures to background risk. We show that background risk always results in a lower deductible for the incentive constrained contract, and that a broader range of markets attains the stable sequential equilibrium cross-subsidized pair of separating contracts. We conclude that background risk always improves the performance of markets for coverage against (insurable) foreground risks that must deal with adverse selection. We also find, however, that these improvements are never sufficient to offset the cost to insureds of bearing the background risk. 相似文献
89.
Antoine Bouët Yvan Decreux Lionel Fontagné Sébastien Jean David Laborde 《Review of International Economics》2008,16(5):850-863
This paper presents MAcMap–HS‐6, a database providing a consistent, ad valorem equivalent measure of tariff duties and tariff rate quotas for 163 countries and 208 partners, at the six‐digit level of the Harmonized System (5111 products), accounting for all preferential agreements. We describe the methodology used to compute and aggregate an ad valorem equivalent of applied protection. Emphasis is placed on minimizing the endogeneity bias in the aggregation procedure, while acknowledging structural differences in export specialization. The resulting quantitative assessment is illustrated by giving an overview of applied protection across the world in 2001, in terms of average as well as distribution. 相似文献
90.