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   222篇
  免费   8篇
财政金融   56篇
工业经济   13篇
计划管理   35篇
经济学   62篇
综合类   1篇
贸易经济   40篇
农业经济   10篇
经济概况   13篇
  2019年   6篇
  2018年   2篇
  2017年   2篇
  2016年   6篇
  2015年   2篇
  2014年   5篇
  2013年   26篇
  2012年   4篇
  2011年   6篇
  2010年   7篇
  2009年   8篇
  2008年   9篇
  2007年   5篇
  2006年   9篇
  2005年   6篇
  2004年   6篇
  2003年   7篇
  2001年   4篇
  2000年   3篇
  1999年   3篇
  1998年   6篇
  1997年   4篇
  1996年   11篇
  1995年   1篇
  1994年   4篇
  1993年   3篇
  1992年   6篇
  1991年   1篇
  1990年   2篇
  1989年   3篇
  1987年   2篇
  1986年   4篇
  1985年   4篇
  1984年   4篇
  1983年   5篇
  1982年   7篇
  1981年   3篇
  1980年   2篇
  1979年   4篇
  1978年   4篇
  1977年   8篇
  1976年   1篇
  1975年   2篇
  1974年   4篇
  1972年   2篇
  1971年   1篇
  1970年   1篇
  1967年   1篇
  1966年   1篇
  1965年   1篇
排序方式: 共有230条查询结果,搜索用时 336 毫秒
91.
In today's world, it is a challenge just to stay in business, let alone remain competitive in a specific industry. We will show you how to pinpoint MRP II problems and attack them through self-assessment audits. You will discover the secrets of breaking down barriers between Master Schedulers, Material Planners, Production Control Planners, and the Manufacturing Line. Self-assessment audits are one way to take care of your planning functions before outside auditors take care of them for you.  相似文献   
92.
Virtual companies reconsidered   总被引:3,自引:0,他引:3  
An important recent report recommends the creation of 'rirtual companies'-companies formed from electronically linked workers who rfmain employees o f their regular firms . This paper criticizes that model, instead suggesting that uirtual companies have their o m employees. The assessment of the implications of both ppes of virtual compay points to the need for majar national poliy changes with respect to employment practices and mechanisms to conty wealth to people.  相似文献   
93.
We analyze the performance of 1,042 mutual funds from 1986 to 1995 to measure the relationship between manager tenure and performance. Funds whose managers' have at least ten years tenure do not generate significantly higher excess returns than funds with less experienced managers. The excess returns of the best managers are not greater than those of their less experienced colleagues. Regardless of tenure, managers producing positive risk adjusted returns for three years are not likely to repeat their performance in subsequent periods. Our results provide further evidence that tenure should not be a factor in selecting mutual funds.  相似文献   
94.
We design a multi‐unit descending‐price (Dutch) auction mechanism that has applications for resource allocation and pricing problems. We address specific auction design choices by theoretically and experimentally determining optimal information disclosure along two dimensions. Bidders are either informed of the number of bidders in the auction, or know that it is one of two possible sizes; they also either know the number of units remaining for sale or are unaware of how many units have been taken by other bidders. We find that revealing group size decreases bids, and therefore revenue, if units remaining are not shown. When group size is unknown the price also falls if the number of units remaining is revealed. The most efficient and largest revenue outcome occurs when bidders are not provided information on either group size or units remaining. These laboratory results conform to some directional predictions from our theory, although overbidding is common.  相似文献   
95.
Nanobiomedical science is a promising area in the application of nanotechnology. This paper profiles a group of 21 leading scientists in nanobiomedicine based on high publication rate and high citations. Comparisons with other researchers indicate that the leaders publish more in high impact journals and collaborate more extensively (team science). They reside most heavily in the United States and Western Europe. We compare their research publications using multiple indicators–Integration, Specialization and a Multidisciplinary Index. Relations among interdisciplinarity indicators generated support a three‐factor model based on principles of diversity. We locate this research among the disciplines using science overlay mapping. Key term analyses, based on keywords and on natural language processing help profile the research emphases of these leading researchers. Such results could serve as leading indicators to help identify directions of future nanobio development.  相似文献   
96.
The three traditional views of retail internationalization involve the diffusion of retail concepts, operational involvement in foreign markets and the international- ization of a retail management function. None of these identified categories is new, but there is evidence that there is an unprecedented level of interest in internationalization as a viable strategic option for retailers. This paper examines these themes within die grocery sector in Europe, through an empirical investigation of activity in the post-war period.  相似文献   
97.
This study reviews and analyses the changes in management systems in the People's Republic of China over the last decade. Within the wider context of the Open Door policy, the modernization of industry and increased enterprise autonomy, the contract management responsibility system (CMRS) and, more recently, the modern enterprise system (MES) have been introduced. These both provide enterprises (and the managers within them) with a framework within which to practise. This analysis describes the CMRS and the IMES and then, on the basis of discussions and interviews with factory managers, and with officials responsible at the macro level for monitoring the itnplementation of policy, analyses the implications of the changes. The authors conclude that, despite the introduction of a degree of management discretion and independence, differences in opinion persist on what, precisely, are the current industrial problems, and therefore what to do to address them. There have, consequently, been mixed reports on the success or otherwise of both systems.  相似文献   
98.
This article reviews retail change in Europe over the past 20 years. The sociocultural context of retailing in Europe is briefly discussed before macro level changes in the relative scale of Europe's largest retail organizations over this period are explored. Three underlying themes to retail change are then discussed – the emergence of new markets, in relation to geographical, product, service and channel diversity; the evolution of the retailer as a brand, encompassing an holistic multifaceted conceptualization involving product, store and organizational dimensions; and the role of time as a competitive element through consumer and business behaviours, and in terms of the pace of strategy implementation. Finally, looking forward the study concludes with a number of underlying themes in the approaches taken by European retail organizations  相似文献   
99.
Climate change represents an unavoidable and growing challenge to food security, imposing new adaptation imperatives on all farmers. Maize is arguably the world's most productive grain crop, as measured by grain yield. However, maize yields vary dramatically due to many factors, including soils, climate, pests, disease, agronomic practices, and seed quality. The difference between observed yields and those achievable by optimized crop production methods is called the yield gap. In this work we quantified the current yield gap for 44 countries through the use of a large private-sector data set recently made available to the crop modelling community. The yield gap was quantified for three groups of countries, categorized by level of intensification. Observed yield gaps for high, medium, and low levels of intensification are 23%, 46%, and 68%, respectively. If all maize production countries were able to shrink their yield gap to 16.5% (as in the USA) an additional 335?million metric tons (MMT) of maize grain would be produced. This represents a 45% increase over the 741?MMT produced by these countries in 2010. These data demonstrate that a major untapped maize yield opportunity exists, especially in those countries where intensification has not kept pace with the rest of the world.  相似文献   
100.
Rising US medical costs as well as more competition in the health care industry have led many Americans to pursue health care in foreign destinations. As a result, leading countries in medical tourism have begun launching international advertising campaigns. A growing trend in much of this advertising is the use of emotional appeals. The purpose of this research is to examine whether the use of emotional appeals by non-domestic health care providers contributes to more favourable evaluations of the target health care provider than rational appeals. Specifically, two experimental studies investigate the efficacy of advertisements that induce the emotion of hope to determine whether these advertisements increase trust perceptions and reduce perceived risk, given an individual's level of risk propensity. Implications for public policy makers and marketing managers who work in health care are discussed.  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