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   22662篇
  免费   608篇
财政金融   4030篇
工业经济   1609篇
计划管理   3922篇
经济学   5381篇
综合类   244篇
运输经济   176篇
旅游经济   341篇
贸易经济   3758篇
农业经济   1140篇
经济概况   2592篇
信息产业经济   3篇
邮电经济   74篇
  2023年   108篇
  2021年   149篇
  2020年   283篇
  2019年   453篇
  2018年   497篇
  2017年   525篇
  2016年   514篇
  2015年   351篇
  2014年   562篇
  2013年   2397篇
  2012年   776篇
  2011年   809篇
  2010年   700篇
  2009年   794篇
  2008年   727篇
  2007年   634篇
  2006年   608篇
  2005年   530篇
  2004年   462篇
  2003年   474篇
  2002年   420篇
  2001年   501篇
  2000年   457篇
  1999年   414篇
  1998年   471篇
  1997年   423篇
  1996年   421篇
  1995年   359篇
  1994年   369篇
  1993年   353篇
  1992年   362篇
  1991年   379篇
  1990年   345篇
  1989年   254篇
  1988年   263篇
  1987年   267篇
  1986年   248篇
  1985年   358篇
  1984年   354篇
  1983年   331篇
  1982年   284篇
  1981年   285篇
  1980年   283篇
  1979年   276篇
  1978年   225篇
  1977年   183篇
  1976年   182篇
  1975年   162篇
  1974年   149篇
  1973年   148篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
911.
Logistic and power law methodologies for both retrospective and prospective analyses of extended time series describing evolutionary growth processes, in environments with finite resources, are confronted. While power laws may eventually apply only to the early stages of said growth process, the Allee logistic model seems applicable over the entire span of a long range process. On applying the Allee logistic model to both the world population and the world gross domestic product time series, from 1 to 2008 AD, a projection was obtained that along the next few decades the world should experience a new economic boom phase with the world GDP peaking around the year 2020 and proceeding from then on towards a saturation value of about 142 trillion international dollars, while the world population should reach 8.9 billion people by 2050. These results were then used to forecast the behavior of the supply and consumption of energy and food, two of the main commodities that drive the world system. Our findings suggest that unless the currently prevailing focus on economic growth is changed into that of sustainable prosperity, human society may run into a period of serious economical and social struggles with unpredictable political consequences.  相似文献   
912.
This paper investigates people's preferences for live theatre, and heterogeneity in willingness‐to‐pay (WTP). A stated preference discrete choice model estimates utility and WTP for different attributes of theatre productions. Previous studies assumed fixed coefficients across all theatre‐goers. This study allows coefficients of attributes to vary across individuals in the population, providing information on the heterogeneity of tastes. Theatre‐goers' choices are used to estimate individual‐based parameters for a person's tastes in theatre productions. The analysis reveals the heterogeneity of tastes for different types of plays and ticket price; and the significance of ‘reviews’ by critics and ‘word of mouth’ opinions as important variables determining choice.  相似文献   
913.
Scenario analysis is an approach to long-term planning that informs decision-making in contexts of highly uncertain future conditions. Scenario-based studies are rapidly growing in popularity, yet many aspects of the method are not fully understood. Participants' willingness to suspend disbelief in possible futures is an integral component of scenario-based studies, essential for considering alternative future scenarios, yet little is known about the factors that affect it. Participation in a scenario project does not necessarily imply willingness or ability to suspend disbelief; participants may not suspend disbelief simply upon request. However, the scenario literature says little about the aspects of scenario-based studies that influence suspension of disbelief.This article explores the factors that influenced the suspension of disbelief in one scenario exercise about the future of Canada's forests. Participants differed in their abilities to suspend disbelief in the scenarios in part because of their past experiences and expertise in particular areas, and their assessments of probable and desired future outcomes. Elements of the project design and implementation influenced participants' abilities to engage the scenarios. The results have implications for those interested in using scenarios for helping people and communities envision possible - and sustainable - futures.  相似文献   
914.
Established environmental policy theory is based on the assumption of homo economicus. This means that people are seen as fully rational and acting in a self-regarding manner. In line with this, economics emphasizes efficient policy solutions and the associated advantages of price incentives. Behavioral economics offers alternative, more realistic views on individual behavior. In this paper we investigate opportunities to integrate bounded rationality and other-regarding preferences into environmental policy theory to arrive at recommendations for more effective policies. For this purpose, we will address decisions made under risk and uncertainty, intertemporal choice, decision heuristics, other-regarding preferences, heterogeneity, evolutionary selection of behaviors, and the role of happiness. Three aspects of environmental policy are considered in detail, namely sustainable consumption, environmental valuation and policy design. We pay special attention to the role of non-pecuniary, informative instruments and illustrate the implications for climate policy.  相似文献   
915.
Randerscheinung oder Zukunftsl?sung? - Mehr M?nner in der Pflege, lautet das erkl?rte Ziel der Politik, um den drohenden Pflegenotstand abzuwenden. Braucht die Pflege mehr M?nner? Wie viele arbeiten bereits in pflegenden Berufen? Und was sagen die Frauen in der Pflege dazu? Wir haben uns umgeh?rt.  相似文献   
916.
Pflegep?dagogik (Bachelor/Master) - Der Ruf nach qualifiziertem Pflegepersonal setzt voraus, dass deren Aus- und Weiterbildung selbst entsprechende Anforderungen erfüllt. Den Einsatz von qualifizierten Lehrkr?ften mit speziellen, berufsp?dagogischen Kenntnissen und F?higkeiten beispielsweise. Studieng?nge zur Berufsp?dagogik im Gesundheitswesen bereiten auf die anspruchsvolle T?tigkeit vor.  相似文献   
917.
918.
This study seeks to highlight the key role played by relational capital in new business start‐ups. Following a review of previous research examining the success factors of new ventures and the role played by intellectual capital, our study sets out to achieve this objective by analyzing the impact of a set of intangible relational assets on the initial success of new business start‐ups. Based on a study of 130 firms, we analyzed six hypotheses regarding the possible positive relationship between the relational capital of a start‐up company and its success in its first few years of business.  相似文献   
919.
920.
A retail franchisor needs growth capital so that the brand continues to grow and franchisor–franchisee relations remain strong. However, access to corporate liquidity to fund such franchise growth options is not unlimited. A method of raising finance particularly suited to retail franchisors is intellectual property (IP) securitization that allows companies to account for intangible assets such as intellectual property, royalty and brands and realize their full value. In recent years, a number of large restaurant franchisors have securitized their brands to raise funds, including Dunkin Brands and Domino's Pizza (Domino's). We use property rights approach to show that IP securitization provides mechanisms that explicitly define ownership of intangible assets within the securitization structure and thus enables a company to raise funds against these assets. Using a case study example of a retail franchise IP securitization transaction, we also provide evidence that these mechanisms are not overly restrictive and can be used more widely to help fund retail franchise growth and expansion.  相似文献   
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