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   3618篇
  免费   121篇
财政金融   811篇
工业经济   299篇
计划管理   680篇
经济学   798篇
综合类   39篇
运输经济   27篇
旅游经济   59篇
贸易经济   627篇
农业经济   105篇
经济概况   286篇
邮电经济   8篇
  2023年   22篇
  2022年   10篇
  2021年   34篇
  2020年   55篇
  2019年   94篇
  2018年   95篇
  2017年   103篇
  2016年   106篇
  2015年   67篇
  2014年   97篇
  2013年   502篇
  2012年   142篇
  2011年   166篇
  2010年   124篇
  2009年   164篇
  2008年   121篇
  2007年   130篇
  2006年   116篇
  2005年   97篇
  2004年   120篇
  2003年   121篇
  2002年   123篇
  2001年   102篇
  2000年   101篇
  1999年   86篇
  1998年   91篇
  1997年   74篇
  1996年   56篇
  1995年   54篇
  1994年   48篇
  1993年   43篇
  1992年   43篇
  1991年   39篇
  1990年   31篇
  1989年   25篇
  1988年   13篇
  1987年   23篇
  1986年   23篇
  1985年   49篇
  1984年   39篇
  1983年   29篇
  1982年   30篇
  1981年   22篇
  1980年   15篇
  1979年   22篇
  1978年   12篇
  1977年   12篇
  1976年   10篇
  1974年   6篇
  1968年   5篇
排序方式: 共有3739条查询结果,搜索用时 312 毫秒
71.
Regulated firms in pollution permit markets with banking   总被引:5,自引:0,他引:5  
This paper examines a competitive intertemporal market for bankable emission permits, such as sulfur dioxide allowances. Without profit regulation, firms are willing to bank permits if permit prices rise over time with the rate of interest, but will not bank if prices rise more slowly.The market achieves aggregate emission targets at least total cost if there is no profit regulation, but may not do so if firms are subject to profit regulation. Firms must arbitrage differences both in abatement cost and in the regulatory treatment of permits to achieve least total cost.The impetus for this work came from research we initiated during the Summer of 1990 for the Energy Information Agency. We would like to thank Chuck Howe for his detailed comments and enthusiasm, and Jim Alm, Dave Bjornstad, Charles deBartolome, Mike Greenwood, Robert Hahn, Douglas Hale, Carolyn Lang, Jim Markusen, Edward Morey, Till Requate, and Tom Tietenberg. We are grateful to the editor and two anonymous referees for stressing the importance of regulation in these markets and for their helpful and clarifying advice.  相似文献   
72.
Modern irrigation technologies have been suggested as a means of conserving scarce water and reducing environmental pollution caused by irrigated agriculture. This paper applies an economic model of technology selection that provides a general framework to analyzing adoption of irrigation technologies under various environmental conditions. Data from the San Joaquin Valley of California is used to verify the theoretical relationships. Results suggest key variables to be considered by policy makers concerned with adoption of modern irrigation technologies. Among these variables are crop prices, water technology costs, farm organization characteristics, and the environmental conditions of the farm or the field. Policy implications were discussed and analyzed.This research was conducted while the first author was a visiting scholar with the Dept. of Agricultural Economics, University of California, Davis, and USDA-ERS, USA.  相似文献   
73.
74.
This paper considers a setting where a resource such as education budget is to be distributed among agents. The latter differ in their ability to make use of the resource, and the issue is that of determining the allocation rule whereby the individual shares of the resource (may) depend on their relative efforts of obtaining it. The paper's focus is on endogenous determination, through voting, of the degree of meritocracy in the resource allocation system, which determines the marginal productivity of one's effort. It is found that a meritocratic system is expected to be supported by highly productive individuals and opposed by those with low productivity. When the decision making becomes less elitist and involves broader participation of population groups the support for meritocracy decreases.  相似文献   
75.
This paper examines the dynamics of inter-firm networks and introduces a conceptual framework for explaining why inter-firm networks change over time. The framework is based on the idea that patterns of inter-firm linkages are linked to the life cycle development of an industry. Special emphasis is placed on the role of appropriabiliy, i.e. a firm's ability to capture the profits generated by its innovations. The (trans)formation of inter-firm networks in three industries is examined and used to illustrate the relevance of the framwork. One important inference from our study is that public policy makers and manageers should take into account the phase of industry development before implementing policies to create and/or change inter-firm networks.  相似文献   
76.
Most definitions of the concept of stakeholder include only human entities. This paper advances the argument that the non-human natural environment can be integrated into the stakeholder management concept. This argument includes the observations that the natural environment is finally becoming recognized as a vital component of the business environment, that the stakeholder concept is more than a human political/economic one, and that non-human nature currently is not adequately represented by other stakeholder groups. In addition, this paper asserts that any of several stakeholder management processes can readily include the natural environment as one or more stakeholders of organizations. Finally, the point is made that this integration would provide a more holistic, value-oriented, focused and strategic approach to stakeholder management, potentially benefitting both nature and organizations.Mark Starik is an Assistant Professor of Strategic Management and Public Policy at The George Washington University. His research and writing on environmental management topics include articles, chapters, and presentations on Global Strategic Environmental Management, Environmental Entrepreneurship, and Environmental Stakeholders of the U.S. Energy Sector. In addition, he is active in the advancement of environmental programs in both the Academy of Management and the George Washington University.  相似文献   
77.
Stores   总被引:1,自引:0,他引:1  
Summary There is scope and incentive for stores to endogenously arise in an exchange economy when agents possess different levels of bargaining power and coalition formation is costly. In the absence of stores, agents face a trading lottery where the expected outcome for an individual agent depends upon his relative bargaining strength. By setting appropriate, preannounced prices, a store can profitably offer relatively weak bargainers trading opportunities which they prefer to the trading lottery. While relatively weak bargainers are attracted to the store, relatively strong bargainers prefer the trading lottery to the store. Thus, the simultaneous existence of barter and mediated trade is explained.The work reported here was conceived while both authors were visiting the University of Southern California. We thank Martine Quinzii and two anonymous referees for helpful comments.  相似文献   
78.
An analysis of the way in which primary age children design, particularly when working with a professional designer, suggests that there are several similarities in approach between the two. This observation is supported by evidence from developmental psychology, which has stressed the crucial role which play performs in developing children's inventiveness and ability to solve problems. Subsequent research focusing on children's designing suggests that this play is fundamental to designing activity, and extends naturally into the more formalised activities of drawing and modelling. Through playing and using narrative language to describe their actions, children are learning to interpret their own mental images. To develop these images and make them more concrete children use their hands in drawing and modelling whilst drawing on their accumulated personal knowledge about the activity of designing, in a similar way to that in which professional designers make use of their own, highly sophisticated skills to bring an idea to concrete fruition. By comparison with some of the rigid models of the design process described in schools, designers and children may have more in common than we realise.  相似文献   
79.
The politics of option accounting crosses party lines, reflecting both the interests of the affected constituencies and the desire for power over standard setting. House Bill HR-3574, which mandates an assumption of zero stock price volatility, runs counter to the recently passed Financial Accounting Standards Board (FASB) rule requiring fair-value expensing of stock options. For any option issued at or out of the money, where strike prices are normally set, expense recognition is zero under this bill's mandated assumption.
Besides excessive use of stock options, the lack of a "final peace" in the option accounting war appears to have encouraged another questionable corporate practice. This article examines a sample of "six-and-one restructurings," exchanges of options in which expensing of re-priced (deep out-of-the-money) options can be avoided if employees wait at least six months and one day before receiving new options. The authors found that market-adjusted stock prices tend to decrease during the six-month period before the strike price is reset. This result provides one more reason why companies should be required to use fair-value option pricing models to expense options.  相似文献   
80.
We show an isomorphism between optimal portfolio selection orcompetitive equilibrium models with utilities incorporatinglinear habit formation, and corresponding models without habitformation. The isomorphism can be used to mechanically transformknown solutions not involving habit formation to correspondingsolutions with habit formation. For example, the Constantinides(1990) and Ingersoll (1992) solutions are mechanically obtainedfrom the familiar Merton solutions for the additive utilitycase, without recourse to a Bellman equation or first-orderconditions. More generally, recent solutions to portfolio selectionproblems with recursive utility and a stochastic investmentopportunity set are readily transformed to novel solutions ofcorresponding problems with utility that combines recursivitywith habit formation. The methodology also applies in the contextof Hindy–Huang–Kreps (1992) preferences, where ourisomorphism shows that the solution obtained by Hindy and Huang(1993) can be mechanically transformed to Dybvig's (1995) solutionto the optimal consumption-investment problem with consumptionratcheting.  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