全文获取类型
收费全文 | 10769篇 |
免费 | 260篇 |
专业分类
财政金融 | 1900篇 |
工业经济 | 820篇 |
计划管理 | 1840篇 |
经济学 | 2584篇 |
综合类 | 136篇 |
运输经济 | 72篇 |
旅游经济 | 126篇 |
贸易经济 | 1520篇 |
农业经济 | 499篇 |
经济概况 | 1476篇 |
邮电经济 | 56篇 |
出版年
2020年 | 105篇 |
2019年 | 168篇 |
2018年 | 186篇 |
2017年 | 234篇 |
2016年 | 216篇 |
2015年 | 127篇 |
2014年 | 237篇 |
2013年 | 997篇 |
2012年 | 285篇 |
2011年 | 319篇 |
2010年 | 249篇 |
2009年 | 349篇 |
2008年 | 269篇 |
2007年 | 245篇 |
2006年 | 219篇 |
2005年 | 226篇 |
2004年 | 199篇 |
2003年 | 236篇 |
2002年 | 196篇 |
2001年 | 210篇 |
2000年 | 225篇 |
1999年 | 223篇 |
1998年 | 197篇 |
1997年 | 211篇 |
1996年 | 192篇 |
1995年 | 163篇 |
1994年 | 170篇 |
1993年 | 192篇 |
1992年 | 198篇 |
1991年 | 190篇 |
1990年 | 194篇 |
1989年 | 167篇 |
1988年 | 161篇 |
1987年 | 158篇 |
1986年 | 172篇 |
1985年 | 200篇 |
1984年 | 187篇 |
1983年 | 179篇 |
1982年 | 164篇 |
1981年 | 180篇 |
1980年 | 163篇 |
1979年 | 184篇 |
1978年 | 146篇 |
1977年 | 138篇 |
1976年 | 125篇 |
1975年 | 91篇 |
1974年 | 97篇 |
1973年 | 100篇 |
1972年 | 76篇 |
1971年 | 60篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
Swamy P.A.V.B. Tavlas George S. Lutton Thomas J. 《Journal of Productivity Analysis》2003,20(1):97-114
This paper introduces a simple, yet rich, measure of efficiency changes based on the revenue-generating-ability (RGA) principle. Using this principle, we explain the connections between efficiency changes and the variables, such as pretax profits, interest expense, non-interest expense, profit margins, loan loss provision, and asset quality. These connections are used to explain earnings differences between small and large commercial banks. 相似文献
72.
Statistical inference based on the Weibull distribution, a distribution widely used in reliability and survival analysis,
is usually difficult as it often involves numerical computation and approximation. However, this distribution can be transformed
to near-normality by a simple power transformation. Based on this transformation, a prediction interval (PI) for its median
can be easily constructed through an inverse transformation. The procedure for selecting the best power transformation through
minimizing Kullback-Leibler information is described. The property of this transformation-based PI is investigated. Simple
correction factors are also proposed. It is shown that the transformation-based PI with corrections performs well, irrespective
of the sample size and parameter values. Simulation results show that the new PI generally outperforms the existing PI. Numerical
examples are given for illustration. 相似文献
73.
The conceptual model presented in this article argues that corporations exhibit specific behaviors that signal their true level of moral development. Accordingly, the authors identify five levels of moral development and discuss the dynamics that move corporations from one level to another. Examples of corporate behavior which are indicative of specific stages of moral development are offered.R. Eric Reidenbach is Professor of Marketing and Director of the Center for Business Development and Research at the University of Southern Mississippi. He has written extensively on business and marketing ethics.Donald P. Robin, Professor of Business Ethics and Professor of Marketing at the University of Southern Mississippi, is coauthor with R. Eric Reidenbach of two recent books on business ethics with Prentice-Hall. He is a frequent lecturer on business ethics and is the author of several articles on the subject. 相似文献
74.
An Erratum for this article has been published in Journal of Applied Econometrics 18(2) 2003, 249 Previous empirical work on corporate growth rates using cross‐section or short‐panel econometric techniques suggests that growth rates are random but that some degree of mean reversion exists. This means that size differences between firms are transitory. Another, more natural way to explore the long‐run distribution of firm sizes is to examine data on the growth of particular firms over long periods of time. Using a sample of 147 UK firms observed continually for more than 30 years, our conclusions are that growth rates are highly variable over time and that differences in growth rates between firms do not persist for very long. Further, firms show no tendency to converge to either a common size or to a pattern of stable size differences over time. These results are compared and contrasted with standard approaches that suggest that firms reach and maintain stable positions in a skewed size distribution. Copyright © 2002 John Wiley & Sons, Ltd. 相似文献
75.
Financial flows between center and region are analyzed on the example of the Republic of Buryatia. Significant changes are shown to have occurred in the interbudgetary relations between the federal center and the region, which are associated with a revised delineation of authorities between different levels of authority. It has been the key factor in changing the sources and volumes of financial flows. The analysis is largely focused on the relations between the region and its municipalities. 相似文献
76.
Richard P. O’Neill Emily Bartholomew Fisher Benjamin F. Hobbs Ross Baldick 《Journal of Regulatory Economics》2008,34(3):220-250
The general design for the real-time electricity market presented in this paper optimizes and prices both real and reactive
power simultaneously in an AC setting, where all assets—generation, load and transmission—are allowed to bid and are financially
settled at the locational price times energy consumed or produced. The result is that transmission lines are compensated for
both capacity and admittance, providing incentives for efficient operation of transmission-related assets such as FACTS devices,
if price-taking behavior is assumed. Losses are incorporated into the design and become an operating cost for transmission.
The market design is shown to be revenue neutral and, under some assumptions, nonconfiscatory.
相似文献
77.
78.
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
79.
Andrew Prevost Ramesh P. Rao & John D. Wagster 《Journal of Business Finance & Accounting》2002,29(7&8):1079-1104
On April 1, 1988, New Zealand stopped the double taxation of dividends by implementing a full dividend imputation program. Because many believed that the tax advantage of debt had led to more highly leveraged firms subject to greater financial risk than was socially optimal, it was hoped the removal of incentives to finance with debt would result in a more efficient allocation of capital. The empirical results suggest that the shareholder wealth gain from dividend imputation was more than offset in firms with large debt levels. Moreover, an examination of debt ratios indicates debt levels declined in the post–imputation period. 相似文献
80.
Random urinalysis strategies stratified by time since the last test are characterized with a set of Markov chain models. The probability of a person being tested depends on the amount of time since the person's last test. The Nuclear Regulatory Commission (NRC) has proposed a two strata drug testing strategy based on time since last test. The proposal included a high testing rate for people not yet tested in a given time period and a low testing rate for people testing negative in a given time period. Southern California Edison has implemented a variation of the NRC proposal. These strategies can be modeled within a Markov chain framework. Time to detection is calculated as a function of testing probabilities and drug usage levels. Drug user gaming strategies are discussed with illustrations. These models are implemented as part of a U.S. Navy drug policy analysis system. 相似文献