全文获取类型
收费全文 | 407篇 |
免费 | 14篇 |
专业分类
财政金融 | 60篇 |
工业经济 | 27篇 |
计划管理 | 69篇 |
经济学 | 78篇 |
综合类 | 3篇 |
运输经济 | 4篇 |
旅游经济 | 3篇 |
贸易经济 | 109篇 |
农业经济 | 28篇 |
经济概况 | 30篇 |
邮电经济 | 10篇 |
出版年
2024年 | 1篇 |
2023年 | 1篇 |
2022年 | 5篇 |
2021年 | 3篇 |
2020年 | 9篇 |
2019年 | 19篇 |
2018年 | 15篇 |
2017年 | 15篇 |
2016年 | 22篇 |
2015年 | 13篇 |
2014年 | 25篇 |
2013年 | 34篇 |
2012年 | 27篇 |
2011年 | 35篇 |
2010年 | 25篇 |
2009年 | 27篇 |
2008年 | 24篇 |
2007年 | 20篇 |
2006年 | 19篇 |
2005年 | 8篇 |
2004年 | 9篇 |
2003年 | 9篇 |
2002年 | 3篇 |
2001年 | 9篇 |
2000年 | 5篇 |
1999年 | 6篇 |
1998年 | 4篇 |
1997年 | 2篇 |
1996年 | 1篇 |
1995年 | 3篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1992年 | 2篇 |
1991年 | 1篇 |
1989年 | 1篇 |
1988年 | 1篇 |
1987年 | 2篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1984年 | 2篇 |
1983年 | 1篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1980年 | 1篇 |
1979年 | 1篇 |
1977年 | 2篇 |
1973年 | 1篇 |
1970年 | 2篇 |
排序方式: 共有421条查询结果,搜索用时 15 毫秒
151.
152.
Wenn Produkte und Services immer vergleichbarer werden, wird die Marke zu einem immer wichtigeren Differenzierungsfaktor.
Diese Entwicklung trifft viele Branchen — Telekommunikation, Energieversorgung, Automobilindustrie — insbesondere aber die
Banken. Um die Angebote und Preise optimal zu strukturieren, ist eine genaue Kenntnis der kundenindividuellen Markenmehrwerte
unerl?sslich. Das im Folgenden beschriebene Vorgehen erl?utert, wie durch eine am individuellen Kunden ausgerichtete, computerbasierte
Trade-Off-Analyse der Mehrwert einer Marke und dessen Treiber exakt bestimmt werden k?nnen. Basierend auf diesen Informationen
liefern die Autoren Vorschl?ge zur Bildung von Kundensegmenten und zur Implementierung der gewonnenen Erkenntnisse in der
Front-Organisation. 相似文献
153.
154.
Tine Buch-Kromann Martin Englund Jim Gustafsson Jens Perch Nielsen Fredrik Thuring 《Scandinavian actuarial journal》2013,2013(4):293-304
Not all claims are reported when a database for financial operational risk is created. The probability of reporting increases with the size of the operational risk loss, and converges towards one for big losses. Losses in operational risk have different causes, and usually follow a wide variety of distributional shapes. Therefore, a method for modelling operational risk based on one or two parametric models is deemed to fail. In this paper, we introduce a semi-parametric method for modelling operational risk that is capable of taking under-reporting into account and being guided by prior knowledge of the distributional shape. 相似文献
155.
The establishment of the European (Financial) Supervisory Authorities (ESA) represents a new peak in the process of agencification of the administration of the European Union. The European legislator has granted the newly founded European Insurance and Occupational Pensions Authority (EIOPA) numerous far-reaching powers in relation to national supervisory authorities and market participants. In this regard the question arises if the European Union was duly empowered by primary law to found this supervisory authority. It has, hitherto, also remained unclear if the extent of the powers entrusted to EIOPA is in conformity with other founding principles of European primary law and the case law of the ECJ. 相似文献
156.
Framing Effects in Stock Market Forecasts: The Difference Between Asking for Prices and Asking for Returns 总被引:2,自引:0,他引:2
Studies analyzing return expectations of financial market participantslike fund managers, CFOs or individual investors are highlyinfluential in academia and practice. We argue and show thatthe results in these surveys above are easily influenced bythe elicitation mode of return expectations. Surveys that askfor future stock price levels are more likely to produce meanreverting expectations than surveys that directly ask for futurereturns. Furthermore, we conduct a questionnaire study thatexplicitly analyzes whether the specific elicitation mode affectsreturn expectations in the above direction. In our study, subjectswere asked to state mean forecasts for seven time series. Usinga between subject design, one half of the subjects was askedto state future price levels, the other group was directly askedfor returns. We observe a highly significant framing effect.For upward sloping time series, the return forecasts statedby investors in the return forecast mode are significantly higherthan those derived for investors in the price forecast mode.For downward sloping time series, the return forecasts givenby investors in the return forecast mode are significantly lowerthan those derived for investors in the price forecast mode.We argue that this finding is consistent with behavioral theoriesof investor expectation formation based on the representativenessheuristic. 相似文献
157.
Martin Koderisch Georg Wuebker Jens Baumgarten Jonathan Baillie 《Journal of Financial Services Marketing》2007,11(3):268-276
Banks can learn valuable lessons from the bundling models developed successfully in other industries. Bundling core banking products with additional services allows banks to differentiate themselves in a generally homogenous sector. Bundling also increases sales across product areas and aids customer lock-in. This paper provides an overview of how to create attractive and profitable bundles through a systematic, multi-stage approach to customer segmentation, targeting and product positioning. 相似文献
158.
Asger Hobolth Qianyun Guo Astrid Kousholt Jens Ledet Jensen 《Revue internationale de statistique》2020,88(1):29-53
Non-negative matrix factorisation (NMF) is an increasingly popular unsupervised learning method. However, parameter estimation in the NMF model is a difficult high-dimensional optimisation problem. We consider algorithms of the alternating least squares type. Solutions to the least squares problem fall in two categories. The first category is iterative algorithms, which include algorithms such as the majorise–minimise (MM) algorithm, coordinate descent, gradient descent and the Févotte-Cemgil expectation–maximisation (FC-EM) algorithm. We introduce a new family of iterative updates based on a generalisation of the FC-EM algorithm. The coordinate descent, gradient descent and FC-EM algorithms are special cases of this new EM family of iterative procedures. Curiously, we show that the MM algorithm is never a member of our general EM algorithm. The second category is based on cone projection. We describe and prove a cone projection algorithm tailored to the non-negative least square problem. We compare the algorithms on a test case and on the problem of identifying mutational signatures in human cancer. We generally find that cone projection is an attractive choice. Furthermore, in the cancer application, we find that a mix-and-match strategy performs better than running each algorithm in isolation. 相似文献
159.
Jens Großer 《Experimental Economics》2007,10(2):191-192
Almost every week national elections are held somewhere in the world. Many more elections take place at federal and local
levels of government. Surely, these are important events to many of us. This thesis aims at providing a better understanding
of why and how people vote in elections.
Three original modifications of Palfrey and Rosenthal’s (1983) participation game are used to study voter turnout theoretically
and experimentally.1 In the basic game, each voter supports (i.e., prefers) one of two exogenous candidates and privately decides between voting
at a cost and abstaining (without costs). The candidate who receives more votes wins the election (ties are broken randomly)
and each supporter of this candidate receives an equal reward, independent of whether or not she voted.
The first study (published in the American Political Science Review 100, pp. 235–248) analyzes the effects of social embeddedness on turnout, assuming that voters may be influenced by observing
the decisions of other voters around them (e.g., a family or working place). Our experimental results show that the social
context matters: this information increases turnout by more than 50%. The increase is greater when neighbors support the same
candidate rather than when they support opponents.
The second study investigates the effects of public opinion polls on voter turnout and welfare. Poll releases resolve uncertainty
about the level of support for each candidate caused by `floating’ voters, whose preferences change across elections. This
information increases turnout in the laboratory by 28–34%, depending on the fraction of floating voters in the electorate.
If polls indicate equal levels of support for both candidates—in which case aggregate benefits for society are not affected
by the outcome—welfare decreases substantially due to costs from excessive turnout.
In the final study, elections are preceded by the competition between two candidates: they simultaneously announce binding
policy offers in which some voters can be favored at the expense of others through inclusion and exclusion in budget expenditure
(Myerson 1993).2 We observe that policy offers include 33% more voters—yielding a smaller budget share for each—when voting is compulsory
rather than voluntary. Moreover, we find evidence of political bonds between voters and long-lived parties.
Overall, in all three experiments many subjects strongly react to economic incentives (i.e., benefits, costs, and informational
clues), often in line with what is observed outside of the laboratory.
JEL Classification C72, C92, D72
Dissertation Committee:
Arthur Schram, University of Amsterdam (advisor)
Axel Ockenfels, University of Cologne
Thomas Palfrey, California Institute of Technology
Cees van der Eijk, University of Nottingham
Frans van Winden, University of Amsterdam
1Palfrey, T.R., & Rosenthal, H. (1983). A strategic calculus of voting. Public Choice, 41, 7–53.
2Myerson, R.B. (1993). Incentives to cultivate favored minorities under alternative electoral systems. American Political Science Review, 87, 856–869. 相似文献
160.