全文获取类型
收费全文 | 2002篇 |
免费 | 64篇 |
专业分类
财政金融 | 384篇 |
工业经济 | 149篇 |
计划管理 | 339篇 |
经济学 | 439篇 |
综合类 | 23篇 |
运输经济 | 19篇 |
旅游经济 | 32篇 |
贸易经济 | 438篇 |
农业经济 | 79篇 |
经济概况 | 114篇 |
邮电经济 | 50篇 |
出版年
2023年 | 13篇 |
2022年 | 8篇 |
2021年 | 30篇 |
2020年 | 36篇 |
2019年 | 44篇 |
2018年 | 67篇 |
2017年 | 73篇 |
2016年 | 69篇 |
2015年 | 38篇 |
2014年 | 93篇 |
2013年 | 209篇 |
2012年 | 90篇 |
2011年 | 97篇 |
2010年 | 90篇 |
2009年 | 82篇 |
2008年 | 75篇 |
2007年 | 75篇 |
2006年 | 65篇 |
2005年 | 82篇 |
2004年 | 55篇 |
2003年 | 55篇 |
2002年 | 45篇 |
2001年 | 37篇 |
2000年 | 32篇 |
1999年 | 34篇 |
1998年 | 21篇 |
1997年 | 27篇 |
1996年 | 19篇 |
1995年 | 25篇 |
1994年 | 17篇 |
1993年 | 21篇 |
1992年 | 16篇 |
1991年 | 23篇 |
1990年 | 14篇 |
1989年 | 15篇 |
1987年 | 15篇 |
1986年 | 19篇 |
1985年 | 22篇 |
1984年 | 19篇 |
1983年 | 23篇 |
1982年 | 14篇 |
1981年 | 21篇 |
1980年 | 15篇 |
1979年 | 19篇 |
1978年 | 18篇 |
1977年 | 12篇 |
1976年 | 10篇 |
1974年 | 11篇 |
1973年 | 7篇 |
1971年 | 7篇 |
排序方式: 共有2066条查询结果,搜索用时 18 毫秒
21.
European Union banana policies do not make economic sense, and hence criticism of these policies is justified. Some facts should, though, be remembered. If the EU had chosen free trade in bananas when the Single Market was established, certain producers both inside and outside the EU would have lost income, and it proved politically impossible to choose direct financial compensation. Also, the quantitative implications of the new EU banana regime may be less than sometimes assumed, as trade has not been reduced very much. The WTO's role is not to judge the economic merits of these policies, but their legal justification. 相似文献
22.
Cross-sectional and time-series tests using mimicking portfolios are used to assess the exactness of the APT with(out) a residual market factor. The first factor seems to be sufficient to span the efficient set, whether the model is estimated using (un)conditional variance-covariance matrices that are (un)adjusted for nonsynchronous trading. Although the conditional standard deviations of the mimicking portfolios significantly explain the time-variability of security volatilities, the residuals of the mean equation still exhibit heteroskedasticity. Similar results are obtained for portfolios of CAPM-betaranked securities, and for randomly selected individual securities. 相似文献
23.
24.
Cash settlement of derivative contracts makes them susceptible to manipulation by traders who expect to close large positions upon final settlement. Cash settlement also increases underlying volatility when hedgers unwind their hedges if they have no incentives to control their trading costs. Limits on the positions that traders can carry into final settlement can be used to mitigate associated economic inefficiencies when surveillance is insufficient. This article develops a model that regulators can use to set these limits that is based upon microstructure theory. The empirical findings indicate that existing position limits are largely inconsistent with those suggested by the model. © 2005 Wiley Periodicals, Inc. Jrl Fut Mark 25:945–965, 2005 相似文献
25.
Die Notwendigkeit zur wertorientierten Führung und Steuerung von Unternehmungen gewinnt durch die zunehmende Professionalisierung
der Kapitalmarktteilnehmer, die Basel-II-Richtlinien für Banken sowie die Neuregelung zum Goodwill Impairment weiter an Dynamik.
Innerhalb der Wertkonzepte nehmen Kapitalkosten als zentraler „value driver“ eine herausragende Bedeutung ein. Vor diesem
Hintergrund werden die unterschiedlichen Verfahren zur Ermittlung von Kapitalkosten, darunter auch das erst kürzlich vorgestellte
Market-derived Capital Pricing Model, diskutiert und mittels eines zu entwickelnden Kriterienrasters systematisch miteinander
verglichen. Schlie?lich entwickelt der Beitrag aus den Erkenntnissen des Verfahrensvergleichs sowie einer Expertenbefragung
praktische Anwendungsempfehlungen. 相似文献
26.
汽车制造商和零件供应商可以节省巨大开支,但前提是双方要更为紧密地合作在一起麦肯锡的研究表明,北美汽车业每年在产品开发和组装过程中由于汽车生产商与供应商缺乏良好的计划和协调不当,造成了超过100亿美元的浪费。事实上.这只是较为保守的估算。因为我们的研究仅涵盖了供应商发生的成本,如:附加设计、生产工具最后改型和零件自身的附加成本。这还不包括因设计问题生产商需额外支付的改型费用、生产问题引发的车辆最终成本的增加或质保支出。这几项每年给汽车行业带来的浪费约为120亿美元。 相似文献
27.
R&D externalities can imply ranges of aggregate increasing returns to scale in R&D. As a consequence several equilibria can exist involving different numbers of firms and different R&D investment levels. In a theoretical model the equilibrium dynamics are analyzed, showing that cyclical fluctuations of the number of firms and R&D investment may be expected, and that the long-run equilibrium is highly sensitive to investors' initial beliefs. The model is tested empirically using a unique database comprising competing firms in various R&D races. 相似文献
28.
Rosa M. Barriga Eugenia P. Vanek Katherine H. Mann Arnold Reisman Lawrence T. Kent 《Socio》1990,24(4):273-283
The simulation problem is one of the most commonly used formats in computer-assisted instruction (CAI). In medical education, a patient simulation problem is known as a patient management problem (PMP). A number of computerized PMP systems are currently available. However, to date, there is no record of PMP systems having been developed using artificial intelligence. This is noteworthy since artificial intelligence techniques could help in the generation of more effective and intelligent instructional systems.
This paper analyzes and evaluates existing instructional simulation software in clinical medicine in terms of effective educational design attributes. Components of effective PMP systems thus identified are incorporated into a computerized instructional system which uses artificial intelligence techniques for teaching problem-solving and diagnostic skills to undergraduate medical students. 相似文献
29.
Robin A. Coulter Linda L. Price Lawrence Feick Camelia Micu 《Journal of the Academy of Marketing Science》2005,33(4):604-619
The authors’ research in Hungary during the period of transition to a market economy provides an opportunity to examine the
evolving relationships between consumer product knowledge and its antecedents, including advertising, personal search, interpersonal
sources, and brand experience. Their findings, based on survey data collected in Budapest in 1992 and 1998, indicate that
the market information variables explain more variance in consumer knowledge later rather than earlier in the transition.
Advertising is an important predictor of consumer knowledge later but not earlier in the transition, personal search is important
at both times, and interpersonal sources are not important in either time period; brand experience is negatively related to
knowledge earlier in the transition and positively related later in the transition. This study allows one to begin to understand
the boundary conditions associated with studies conducted in developed economies. Managerial implications for firms investing
in transitional economies are presented.
Robin A. Coulter (robin.coulter@business.uconn.edu) is Ackerman Scholar and an associate professor of marketing in the School of Business
at the University of Connecticut. She received her Ph.D. from the University of Pittsburgh. Her research interests include
branding, cross-cultural consumer behavior, advertising, and research methods. Her work has appeared in theJournal of Consumer Research, the Journal of Consumer Psychology, theJournal of Applied Psychology, and theInternational Journal of Research in Marketing.
Linda L. Price (llprice@email.arizona.edu) is Soldwedel Professor of Marketing in the Eller School of Management at the University of Arizona.
She received her Ph.D. from the University of Texas at Austin. Her research combines qualitative and quantitative methodologies
to examine the active, emotional, imaginative aspects of consumers’ decisions and activities, and the social and cultural
context of marketplace behaviors. Her work has appeared in theJournal of Consumer Research, Journal of Marketing, and other leading marketing, management, and social science journals.
Lawrence Feick (feick@katz.pitt.edu) is a professor of business administration in the Katz Graduate School of Business at the University
of Pittsburgh. He received his Ph.D. from Pennsylvania State University. His current research focuses on cross-cultural consumer
behavior, consumer word-of-mouth, and referrals. His work has appeared in the Journal of Marketing, theJournal of Marketing Research, the Journal of Consumer Research, Psychological Bulletin, andPublic Opinion Quarterly.
Camelia Micu (camelia.micu@business.uconn.edu) is a marketing doctoral candidate at the University of Connecticut. Her research interests
include advertising and product trial and cross-cultural consumer behavior. 相似文献
30.
Richard C. Becherer D.B.A. Fred W. Morgan Ph.D. Lawrence M. Richard Ph.D. 《Journal of the Academy of Marketing Science》1982,10(3):269-280
Consumer susceptibility to reference group influence has been demonstrated for certain products and buying situations. This
article reports a study designed to determine if reference group influence varies between consumers classified as situationally-oriented
and dispositionally-oriented. Results indicate a considerable difference between the two groups.
Independence Health Plan 相似文献