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   29032篇
  免费   663篇
财政金融   5264篇
工业经济   2140篇
计划管理   4934篇
经济学   6583篇
综合类   308篇
运输经济   180篇
旅游经济   479篇
贸易经济   4457篇
农业经济   1407篇
经济概况   3872篇
邮电经济   71篇
  2021年   167篇
  2020年   276篇
  2019年   372篇
  2018年   539篇
  2017年   531篇
  2016年   501篇
  2015年   375篇
  2014年   573篇
  2013年   2789篇
  2012年   778篇
  2011年   846篇
  2010年   672篇
  2009年   804篇
  2008年   847篇
  2007年   759篇
  2006年   705篇
  2005年   658篇
  2004年   657篇
  2003年   644篇
  2002年   595篇
  2001年   603篇
  2000年   599篇
  1999年   518篇
  1998年   525篇
  1997年   501篇
  1996年   501篇
  1995年   451篇
  1994年   497篇
  1993年   506篇
  1992年   471篇
  1991年   498篇
  1990年   454篇
  1989年   378篇
  1988年   388篇
  1987年   381篇
  1986年   395篇
  1985年   569篇
  1984年   530篇
  1983年   533篇
  1982年   515篇
  1981年   443篇
  1980年   435篇
  1979年   448篇
  1978年   380篇
  1977年   343篇
  1976年   273篇
  1975年   266篇
  1974年   248篇
  1973年   238篇
  1972年   196篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
221.
The Commonwealth Grants Commission has, over the past ten years, been concerned with assessing the per capita relativities to be applied to the distribution of general revenue grants to the States in Australia to achieve fiscal equalization. In arriving at these assessments, the Commission has developed a number of approaches to the treatment of specific purpose payments. It is argued that one of these approaches – the inclusion approach – has an overriding effect which may place fiscal equalization in conflict with other objectives of Commonwealth policy. The nature of this conflict and its management are then explored  相似文献   
222.
223.
Random urinalysis strategies stratified by time since the last test are characterized with a set of Markov chain models. The probability of a person being tested depends on the amount of time since the person's last test. The Nuclear Regulatory Commission (NRC) has proposed a two strata drug testing strategy based on time since last test. The proposal included a high testing rate for people not yet tested in a given time period and a low testing rate for people testing negative in a given time period. Southern California Edison has implemented a variation of the NRC proposal. These strategies can be modeled within a Markov chain framework. Time to detection is calculated as a function of testing probabilities and drug usage levels. Drug user gaming strategies are discussed with illustrations. These models are implemented as part of a U.S. Navy drug policy analysis system.  相似文献   
224.
The fundamental character of a punishment is the subject of this paper. Based on the assumed function of a punishment (deterrent), a punishment has to be perceived and experienced to be an adverse result by the punished and the public. The first factor in particular means that the courts have to have flexibility to sentence a person to such a punishment that is experienced as such. The legal question becomes how this customization of a punishment is acceptable from an equality standpoint. In the field of environmental protection, the administrative process poses serious problems. There may be administrative proceedings that result in substantial economic losses for individuals and groups alike. Jürgen S. Poesche was born in Edmonton (Alberta, Canada), lived in Europe and North America and graduated from the Helsinki University of Technology, University of Helsinki, Swedish School of Economics and Business Administration and Tampere University of Technology. Areas of interest include chemical and mechanical pulping, environmental protection (EIA, environmental ethics, environmental law), and capital investment decision-making. He has published in, e.g., Wochenblatt für Papierfabrikation, Finnish Journal of Business Economics, Ympäristojuridiikka (Environmental Law), and in the publication series of the Helsinki University of Technology and the Tampere University of Technology. Presently, he is working for a major Canadian forest products company.  相似文献   
225.
226.
A multivariate model of the process by which managers decide to release public forecasts of their firms' earnings is developed, based on factors that are hypothesized to affect the demand for and the willingness to supply such forecasts. We test the model on data from a comprehensive sample of earnings forecasts, and find support for our hypotheses about the likely joint influence of those factors. Larger firm size, greater leverage, higher and more stable earnings rates and less rapid growth rates are found to be associated with an increased propensity for management to provide earnings forecasts for their firms.  相似文献   
227.
Competitive decision making: Two and a half frames   总被引:1,自引:1,他引:0  
We argue that the study of competitive decision making has been heavily influenced by the frames of reference that are adopted by researchers. The dominant economic frame and the emergent behavioral frame describe largely separate phenomena and have little overlap. Drawing from examples of learning in games and markets, we show how each of these frames falls short of capturing some interesting elements in competitive decisions. We then describe how a coevolutionary perspective may be emerging as an integrative paradigm for the study of competitive decisions.This paper was prepared for the conference, Understanding Competitive Decision Making. Comments by the participants of that conference and Paul Shoemaker are gratefully acknowledged, as are discussions with Colin Camerer, Eldar Shafir, and Sharoni Shafir.  相似文献   
228.
This article provides empirical evidence on the intraday relation between spot volatility and trading volume in the Spanish stock index futures market. GARCH methodology is used to estimate spot volatility. We analyze the potential relation between spot and futures trading volume and spot volatility by estimating the corresponding conditional density functions as proposed in Quah (1997). Our results reveal no significant link between those variables. Similar findings arise when expected and unexpected volume is considered. Our results suggest that derivative market is not a force behind episodes of significant spot jump volatility. © 2003 Wiley Periodicals, Inc. Jrl Fut Mark 23:841–858, 2003  相似文献   
229.
An Internet presence is a critical early component in the process of building towards a fully operational and unified e‐commerce strategy. E‐commerce has significantly impacted logistics/supply chain strategies and the development and implementation of a website have become key issues for many firms within the transportation industry. This study provides an overview of website content within the motor carrier industry. Content analysis was used to assess the site design, informational content, and the interactive content of 152 motor carrier websites, and to compare the features offered on the Top 100 motor carrier firm websites with those offered on the sites of smaller carrier firms.  相似文献   
230.
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