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   829篇
  免费   33篇
财政金融   163篇
工业经济   74篇
计划管理   109篇
经济学   182篇
综合类   15篇
运输经济   10篇
旅游经济   12篇
贸易经济   148篇
农业经济   72篇
经济概况   75篇
邮电经济   2篇
  2022年   7篇
  2021年   5篇
  2020年   18篇
  2019年   14篇
  2018年   34篇
  2017年   28篇
  2016年   28篇
  2015年   13篇
  2014年   18篇
  2013年   113篇
  2012年   24篇
  2011年   23篇
  2010年   22篇
  2009年   21篇
  2008年   27篇
  2007年   26篇
  2006年   31篇
  2005年   22篇
  2004年   23篇
  2003年   33篇
  2002年   21篇
  2001年   24篇
  2000年   17篇
  1999年   13篇
  1998年   19篇
  1997年   13篇
  1996年   10篇
  1995年   17篇
  1994年   9篇
  1993年   9篇
  1992年   13篇
  1991年   7篇
  1990年   19篇
  1989年   9篇
  1988年   6篇
  1987年   3篇
  1986年   5篇
  1985年   12篇
  1984年   13篇
  1983年   12篇
  1982年   15篇
  1981年   8篇
  1980年   8篇
  1979年   6篇
  1978年   11篇
  1977年   8篇
  1976年   3篇
  1975年   4篇
  1974年   4篇
  1973年   5篇
排序方式: 共有862条查询结果,搜索用时 718 毫秒
61.
Logistics management in grain marketing has become very important with the maturity of the industry. This is particularly critical in the Canadian grain marketing system, which has experienced disruptions for various reasons over many years. These problems have been the topic of numerous industry evaluations, have resulted in a complaint about service obligations during the 1996–97 crop year, and were addressed by the Estey Commission. A detailed model of the Canadian grain logistics system is developed in this paper to evaluate factors that cause disruptions, as well as the effect of several important logistics and marketing strategies on system performance. The results illustrate that there is sufficient randomness throughout the various functions of the system that it is expected that demurrage at the west coast would periodically be an important cost. The frequency of service disruptions and demurrage are affected by several factors, including the distribution of tough and damp grains, mis‐graded grain and the level of exportable supplies. Several strategic variables affect system performance. These include the aggressiveness in selling relative to capacity and the level of beginning port stocks. La gestion de la logistique dans le commerce des céréales a acquis une grande importance maintenant que ce secteur a atteint la maturité. C'est particulièrement important dans le système canadien de mise en marché des céréales lequel, pour diverses raisons, a essuyé bien des perturbations ces dernières années. Les problèmes en cause ont fait l'objet de nombreuses évaluations du secteur. Ils ont même abouti au dépôt d'une plainte sur les obligations de service dans la campagne agricole 1996–1997 et ont étéétudiés par la Commission Estey. Dans la présente communication nous avons construit un modèle détaillé du système canadien de logistique du marché des céréales ainsi que de l'effet de plusieurs stratégies importantes de logistique et de commercialisation sur la performance du systeme. Les résultats obtenus montrent qu'il y a suffisamment d'aléatoire dans les diverses fonctions du systeme pour conclure que les frais de séjour à quai sur la côte ouest seraient périodiquement un important poste de dépense. La fréquence des perturbations des services et les coûts a quai sont associés à plusieurs facteurs dont la livraison de grain gourd et humide, de grain mal classé et le niveau des disponibilités exportables. Plusieurs variables stratégiques influent sur le fonctionnement du système, notamment l'agressivité manifestée dans la vente par rapport aux stocks disponibles et le niveau des stocks disponibles dans les ports au début de la campagne d'exportation.  相似文献   
62.
. This article highlights the observations made and conclusions reached in a recent background study for the Science Council of Canada (Boyd & Wilson, 1975). It examines the interdependence of research and development activities associated with the building and engineering sectors of the construction industry in Canada. It also examines several important factors influencing the effectiveness of the transfer of technology into, and within, these two sectors.  相似文献   
63.
This paper examines the firm's decision to use factoring amongst a cross-sectional sample of 655 manufacturing companies using a rich firm-level database. The paper develops and tests hypotheses that explain this particular choice of credit and financial management policy. We find strong evidence of a 'financing demand' explanation for the use of factoring, and also some support for theories which relate the decision to use a factor to the firm's product characteristics, to market characteristics and to the preferences of the factor (supply constraints). The motivation to use factoring, however, appears to be related more to a demand for asset-based finance from small companies than to firm-level choices about organisational structure.  相似文献   
64.
Although a good deal of empirical research is available on the measurement of turkey body weight gain response to fat supplementation, none has attempted to study the economics of optimizing fat level in turkey diets. This study focuses on deriving the optimal fat level in turkey diets. The methodology used should also apply to any nonruminant species (swine and poultry).  相似文献   
65.
We are not yet in a position to draw simple conclusions from the existing research literature in answer to the question of how the lives of rural women are affected by the processes of commercialization and capitalization in agriculture. The most serious problem inhibiting generalization has been the underlying conceptual and political differences among commentators. This article will explore and illuminate these conceptual differences, discuss the basic weaknesses of the ‘impact model’ (of agricultural change on women) most commonly adopted up to now, and indicate directions taken by alternative conceptualizations that stress the interplay of relations of gender with relations of class and ethnicity.  相似文献   
66.
Market economists are thought to wield tremendous power—not only over financial markets but over governments that stray from the ‘market way’. Still, there is mystery about what economists think, and how they form their judgements. This article reports results from a survey of over 50 financial market economists from leading financial institutions in Australia conducted in December 2003 and January 2004. It provides insight into the opinions of economists who impact on markets and policy, especially through media commentary. The article identifies their economic and social views, comparing them with the Australian public. We then examine how professional views of economists differ from their personal views. Differences in professional and private views—especially over the role of government and labour markets—are an opportunity to ponder how judgements are formed and used. We offer tentative answers to the question: do these professionals—highly paid for their opinions—occasionally self‐censor?  相似文献   
67.
This paper investigates the motivations for a firm's demand for trade credit. Demand for credit is modelled as a function of transaction costs motivations, financing motivations, operational considerations, seller compliance issues and supplier marketing, whilst controlling for the firm's business environment and for firm characteristics such as size and industry. This paper builds on previous studies by considering a wider range of factors that can affect trade credit demand holistically on a single sample. It appears that the use of trade credit is widespread, and that it is generally perceived as an important short term financing option, although the availability of trade credit is not a major influence on supplier choice. The level of a firm's trade credit demand is found to be significantly influenced by transaction costs, financing, operational issues, marketing activities by suppliers, the firm's investment in trade debtors and firm size.  相似文献   
68.
The market prices of natural gas delivered to California rose to unprecedented levels in late 2000 and remained well above levels elsewhere in the country until the summer of 2001 (Figure 1). In addition to the direct impact on natural gas consumers, the high natural gas prices were also a major cause of the high electricity costs suffered by California and other western states in the June 2000–June 2001 period. This paper describes the market and regulatory circumstances that led to such high prices over such an extended period. Lessons are drawn from this experience for other regions wishing to understand and avoid such problems in natural gas markets.  相似文献   
69.
70.
Applying a strategic decision-making perspective on the economics of business, we suggest that a competitive locality in the health industry is one that, relative to other localities, is effective in: (1) providing the healthcare that enables everyone to participate fully in the democratic development of the locality; (2) providing the healthcare that is democratically identified as a direct objective of this development; (3) contributing through the health industry to any other democratically determined objectives of the locality's development. The paper hypothesizes that strategic decision-making in organizations is an especially significant determinant of the impacts of the health industry. We conclude that: (i) a locality that suffers concentration in the power to determine the objectives of its health industry could not be strictly competitive in that industry; (ii) the first best way to achieve competitiveness in the health industry would be to democratize its strategic decision-making. What this would entail in practice is discussed in some detail.  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