首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   5345篇
  免费   175篇
财政金融   1010篇
工业经济   466篇
计划管理   915篇
经济学   1156篇
综合类   62篇
运输经济   31篇
旅游经济   64篇
贸易经济   1146篇
农业经济   223篇
经济概况   398篇
邮电经济   49篇
  2023年   34篇
  2022年   26篇
  2021年   57篇
  2020年   89篇
  2019年   114篇
  2018年   136篇
  2017年   153篇
  2016年   187篇
  2015年   136篇
  2014年   159篇
  2013年   587篇
  2012年   230篇
  2011年   229篇
  2010年   198篇
  2009年   243篇
  2008年   188篇
  2007年   199篇
  2006年   161篇
  2005年   139篇
  2004年   140篇
  2003年   153篇
  2002年   123篇
  2001年   117篇
  2000年   100篇
  1999年   100篇
  1998年   104篇
  1997年   86篇
  1996年   82篇
  1995年   77篇
  1994年   75篇
  1993年   65篇
  1992年   71篇
  1991年   61篇
  1990年   60篇
  1989年   61篇
  1988年   48篇
  1987年   42篇
  1986年   54篇
  1985年   71篇
  1984年   66篇
  1983年   51篇
  1982年   74篇
  1981年   47篇
  1980年   44篇
  1979年   37篇
  1978年   36篇
  1977年   35篇
  1976年   32篇
  1975年   27篇
  1972年   19篇
排序方式: 共有5520条查询结果,搜索用时 503 毫秒
81.
In this paper we examine how the information processing of subjects who make an innovative choice (innovators) differs from that of subjects who make a noninnovative choice (noninnovators). The task involves selection of an alternative within a range of prerated product category innovativeness. We propose that subjects who seek 1) impersonal/uncontrollable sources, 2) higher levels of information, 3) more detailed (versus summary) data, and 4) noncomparative (versus comparative) data are more likely to make innovative choices. The research method is a computerized process tracing experiment utilizing Search Monitor (Brucks 1988).The authors wish to express their gratitude to Merrie Brucks for the use of and help with Search Monitor and to Eric Johnson, Dave Schmittlein, and Mita Sujan for helpful comments on an earlier version of this paper.  相似文献   
82.
Empirical research from various countries indicates that overindebtedness of consumers is, to a considerable extent, attributable to unexpected changes in the consumer's situation caused by illness, unemployment, and other such circumstances. It is therefore relevant to discuss whether and in what way such circumstances should be taken into account in the rules of private law. In Nordic (especially Finnish) legislation, mainly from the 1980s, there are several provisions which provide for mitigation of sanctions against a defaulting consumer if the delay is caused by illness, unemployment, etc. Such rules are contained, inter alia, in the legislation on consumer credit and on interest on delayed payments.On the basis of these provisions as well as some practices developed by the consumer authorities, a general principle of social force majeure is seen to be evolving. This doctrinal principle would enable the courts and other decision-makers to take into account unfavourable changes in the consumer's health, work, housing, and family situation in cases not regulated by specific legislation, e.g., by giving the consumer the right of withdrawal from burdensome contracts in such circumstances or to protect his right to retain electricity and telephone connections in spite of his temporary payment difficulties. The principle is expected to carry increasing weight in the future, especially in the practice of the consumer authorities. Strong arguments speak in favour of the general acceptance of such a principle.
Wirtschaftliche Unmöglichkeit aus sozialen Gründen — eine neue Rechtsfigur in den Nordischen Staaten
Zusammenfassung Empirisch-rechtssoziologische Untersuchungen aus verschiedenen Ländern kommen zu dem Ergebnis, daß Verschuldung und Zahlungsunfähigkeit von Verbrauchern zu einem großen Teil auf unerwartete Umweltänderungen zurückzuführen sind, etwa Krankheit, Arbeitslosigkeit und ähnliches. Es ist deshalb wichtig zu diskutieren, ob und in welcher Weise solche Umstände bei der Anwendung von Privatrechtsvorschriften berücksichtigt werden sollen. In den Nordischen Staaten, insbesondere in Finnland, gibt es seit den achtziger Jahren gesetzliche Vorschriften, die eine Abmilderung von Sanktionen gegen in Verzug geratene Schuldner vorsehen, wenn der Verzug auf Krankheit, Arbeitslosigkeit usw. zurückgeht. Diese Regeln finden sich im Recht des Konsumentenkredits und der Verzugszinsen. Auf der Basis dieser Vorschriften entwickelt sich eine neue Rechtsfigur der wirtschaftlichen Unmöglichkeit aus sozialen Gründen. Dieser Grundsatz würde es Gerichten und anderen Entscheidungsträgern ermöglichen, nachteilige Veränderungen der Gesundheit, Arbeitswelt, Haushalt und Familie des Verbrauchers auch in noch nicht gesetzlich geregelten Bereichen zu berücksichtigen, z.B. durch Gewährung eines Auflösungsrechts bei übermäßig belastenden Verträgen oder durch Schutz seines Rechts auf Versorgung mit Elektrizität und Telefon trotz zeitweiliger Zahlungsschwierigkeiten. Es wird erwartet, daß sich dieses Prinzip in Zukunft verstärkt durchsetzen wird, insbesondere in der Praxis von Verbraucherschutzbehörden. Wichtige Argumente sprechen für die allgemeine Anerkennung dieses Prinzips.


Thomas Wilhelmsson is Professor of Civil and Commercial Law at the Institute of Private Law, Faculty of Law, University of Helsinki, Vuorikatu 5, SF-00100 Helsinki, Finland, and a member of the Finnish Market Court.  相似文献   
83.
Conventional wisdom has it that the absolute (purely negative) veto is ineffective when overridable by a simple majority. That is flatly false. The examples that prove this surprising fact are themselves surprisingly ordinary yet oddly resistant to direct observation. They reveal virtues of a neglected institutional design.JEL classification: D71, D72  相似文献   
84.
In this paper we discuss the fundamental inconsistency that results from employing the two traditional concepts of rationality as the basis of selecting social goals. We then consider the possibility that the selection of social goals must be based on explicitly ethical criteria. To do so a third concept of rationality namely, ontological rationality, should be adopted. Moreover, we argue that J. M. Keynes in A Tract Monetary Reform based his public policy recommendations on a modified version of ontological rationality, thereby introducing ontological rationality into economics as the basis for selecting social goals.A previous version of this paper was presented at the Fifty-Eighth International Atlantic Economic Conference, October 7–10, 2004. The authors are grateful to session participants for their helpful suggestions, though the authors alone are responsible for the contents of the paper.  相似文献   
85.
The relationship between deregulation in the trucking industry and highway safety is an important economic and social issue. Analyses thus far have concentrated on the relationship between the downward pressure imposed on freight rates by deregulation and total safety investment by firms. Two issues which have been ignored are the effects that deregulation had on route carriage restrictions and total firm mileage. We show that the inclusion of these factors yields a model in which the relationship between motor carrier deregulation and highway safety is dependent upon the relative effects of all three factors. Estimation of the model using accident data implies that trucking deregulation did not deteriorate highway safety and may have actually improved it.  相似文献   
86.
Why would managers abandon pay‐for‐performance plans they initiated with great hopes? Why would employees celebrate this decision? This article explores why managers made their decisions in 12 of 13 pay‐for‐performance “experiments” at Hewlett‐Packard in the mid‐1990s. We find that managers thought the costs of these programs to be higher than the benefits. Alternative managerial practices such as effective leadership, clear objectives, coaching, or training were thought a better investment. Despite the undisputed instrumentality of pay‐for‐performance to motivate, little attention has been given to whether the benefits outweigh the costs or the “fit” of these programs with high‐commitment cultures like Hewlett‐Packard was at the time. © 2004 Wiley Periodicals, Inc.  相似文献   
87.
88.
The business cycle with nominal contracts   总被引:1,自引:0,他引:1  
Summary In this paper we study the quantitative implications of nominal wage contracts for business cycle fluctuations. We address this issue using a model economy based on the neoclassical growth model supplemented by the assumption that cash is needed to purchase goods. We consider a variation of the standard recursive competitive equilibrium concept that is intended to capture the important features of wage contracting. We use this equilibrium construct to address three issues. First, we consider whether monetary shocks, propagated by nominal contracts, constitute a viable alternative to technology shocks as a source of aggregate fluctuations. Our results suggest that, while monetary shocks and nominal rigidities succeed in causing output volatility of the required magnitude, the resulting data have properties that are inconsistent with several key features of U.S. data. Second, we consider how the behavior of the economy varies with contract length. We find that the volatility induced by both monetary and technology shocks increases sharply with contract length. Finally we consider how much rigidity would be necessary to match the volatility of U.S. output. We find that only a very small amount of rigidity would be necessary to cause output volatility of the magnitude observed.We have received helpful comments from David Chapman, Paul Gomme, Jeremy Greenwood, Gary Hansen, Michael Keane, Tim Kehoe, Lee Ohanian, Edward Prescott, and Warren Weber. The usual disclaimer applies. This research is supported in part by NSF Grant SES-8921346 and the John M. Olin Foundation.  相似文献   
89.
Conventional wisdom holds that when a firm gets into trouble due to lagging sales and rising costs, cutting the size of the organization to reduce fat and waste is a normal and effective response. In this study, evidence was found to suggest that just the opposite might be true. The financial performance of Fortune 100 companies was tracked over a five-year period—two years prior to the announced layoff, the year of the layoff announcement, and two years following it. Contrary to expectations, the results indicate that financial performance worsened, rather than improved, following announced layoffs. Strategic and human resource implications for the management of corporate downsizing are provided.  相似文献   
90.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号