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   54篇
  免费   0篇
财政金融   2篇
工业经济   2篇
计划管理   6篇
经济学   3篇
综合类   1篇
运输经济   2篇
贸易经济   19篇
农业经济   14篇
经济概况   5篇
  2019年   1篇
  2018年   1篇
  2017年   2篇
  2016年   3篇
  2015年   1篇
  2014年   1篇
  2013年   4篇
  2011年   1篇
  2008年   1篇
  2007年   1篇
  2006年   1篇
  2005年   2篇
  2004年   1篇
  2001年   2篇
  2000年   1篇
  1997年   1篇
  1996年   1篇
  1995年   1篇
  1994年   1篇
  1992年   1篇
  1989年   2篇
  1988年   1篇
  1983年   2篇
  1981年   3篇
  1980年   3篇
  1979年   2篇
  1978年   1篇
  1977年   3篇
  1976年   2篇
  1975年   1篇
  1974年   2篇
  1971年   1篇
  1969年   1篇
  1968年   2篇
排序方式: 共有54条查询结果,搜索用时 0 毫秒
41.
42.
In this paper a distributed lag analysis of regional cattle supply is presented. A polynomial lag formulation has been applied. A distributed lag effect of two economic variables—cattle price and feed grain price (or stocks)—was specified, each with a different lag period. The model was estimated using the method of Lagrangian interpolation. An average lag of 11 quarters with respect to slaughter cattle prices was observed. The lag with respect to feed price (or stocks) was found to be relatively shorter. An inelastic response to cattle price, in the short—as well as the long-run, was observed for Eastern Canada. A similar situation for Western Canada with respect to feed grain stocks was observed.
Dans cet essai, nous nous proposons de présenter une analyse de délai distribué dans I'approvisionnement en bétail au niveau régional. Nous nous sommes servis dune formulation de délai polynomial. Nous avons spécifié un effet de délai distribué de deux variables économiques—le prix du bétail et le prix des farines alimentaires (ou des stocks)—toutes deux ayant des délais différents. Le modèle est basé sur la méthode d'interpolation Lagrangienne. Nous avons observé un délai de 11 trimestres pour ce qui concerne le prix du bétail à l'abattoir. Le délai pour le prix des farines alimentaires (ou des stocks) se montre relativement plus court. Pour I'Est du Canada, nous avons observé pour le prix du bétail une réponse inélastique que ce soil à court on long term. Nous avons observé une situation semblable dans I'Ouest du Canada pour les farines alimentaires.  相似文献   
43.
This study presents results of a cross-section analysis of feeder cattle prices at two Saskatchewan markets. The primary objective of the analysis was to identify factors which influence feeder cattle price variability, particularly those related to the quality of the animal, (i.e., average daily gain, and feed efficiency). Results indicate that disaggregate quality variables are a strong determinant of feeder cattle prices. During the sample period in this study, very large and large framed animals, and those with choice muscling were paid a premium over an animal of average frame and muscle. A positive but discontinuous relationship was observed between the price of the animal and lot size. The pre-sort method of selling feeder cattle had a negative relationship with price, which reflected the relatively poor sorting of cattle at these sales. This, together with the fact that larger lots are mainly associated with the pre-sorted method of selling, implies that if larger lots are obtained at the expense of homogeneity of the lot with respect to quality, the advantage of selling in larger lots may be partially offset. Cette étude présente les résultats de l'analyse d'une coupe en travers des prix de bovins d'engraissement à deux marches du Saskatchewan. L'objet essential de l'analyse ètait d'identifier les facteurs qui influencent la variabilité des prix de bovins d'engraissement, en particulier ceux qui ont rapport à la qualité de la bète (i.e. le moyen accroissement par jour et l'efficacité de l'alimentation). Les résultats indiquent que les variables de la qualité désagrégée déterminent fortement les prix des bovins d'engraissement. Pendant la prise d'énchantillons rapportée dans cette étude, les bestiaux de grande et de très grande ossature et ceux qui avaient la musculature de premier choix on été vendus à prime, de préféference à ceux qui avaient l'ossature et la musculature moyennes. On a observé des rapports positifs mais discontinus entre le prix d'une bète et la grandeur du lot. La méthode de vente qui consiste à trier d'avance le bovins d'engraissement avail un rapport négatif avec le prix, ce qui reflétait le triage de qualité inférieure ayant lieu à ces ventes. Ceci, ajouté au fait que les plus grands lots sont principalement associés avec la méthode de vente qui fait le tri d'avance implique que, si de plus grands lots sont obtenus aux dépens de l'homogénéité du lot quant à la qualité, donc l'avantage de vendre en plus grands lots peut ètre partielement réduite.  相似文献   
44.
45.
46.
A model for predicting the monthly egg production in Canada at least six months in advance is developed in this paper. The model is based on simulating the egg production involving its various stages and making use of technical as well as economic relationships. The model can forecast egg production up to five months in advance using available prices: for a period beyond this lime projection of prices becomes essential. During the period 1965–1969, the forecasted level of production came within ±5 percent range of the actual. Un modèle pour prédire la production mensuel ?oeufs au Canada au moins six mois ?avance est révélé dans cette étude. Le modèle est basé sur la simulation de la production ?oeufs comprennanl ses différents étapes, et ulilisant des relations techniques ou economiques. Le modèle prevoie la production ?oeufs jusquà cinq mois ?avance ulilisant les prix disponibles; pour un temps hors de ce temps, la projection de prix devient essentiel. Pendant ?éspace de temps 1965–1969, le plan de production prèvenue est venue entre plus ou moins la classe de cinq pourcent de ?actuel.  相似文献   
47.
    
Surendra J. Patel 《Kyklos》1968,21(1):147-150
  相似文献   
48.
A vast majority of marketing theory and research has focused on relativism and idealism in order to understand ethical behavior. However, making ethical assessments that in turn influence behavior is much more complicated than it appears. One of the most important developments in contemporary philosophy has been the renewed interest in epistemic virtue. Epistemologists contend that belief is an ethical process that is susceptible to the intellectual virtue or vice of one’s own life and personal experiences. Open-mindedness, curiosity, careful thinking, creativity, and intellectual courage are the foundations of epistemic virtues. Closed-mindedness, intellectual overconfidence, unimaginativeness, intellectual conformity, and wishful thinking are among epistemic vices. The purpose of this investigation is to introduce epistemology to marketing ethics by linking it to personal moral philosophies (idealism and relativism) and optimism to explain various ethically challenging organizational behaviors. The items of epistemology were developed and pretested by the lead author of this study. Structural equations (LISREL) analyses found that epistemic virtues and vices are better predictors of ethical behavior than were personal moral philosophies (idealism and relativism), and their influence on mild and severe levels of unethical behaviors was enhanced by the moderator variable, optimism. Implications are designed to develop suggestions for improving ethical behavior in the workplace.  相似文献   
49.
This paper examines the effects of viewer excitement as elicited by television programs on the effectiveness of commercials embedded in such programs. A review of the literature suggests that the physiological arousal which results from suspenseful or emotional programs can be usefully characterized as an intensifier of important viewer responses. A brief overview of the literature on program context effects to date is given and a model is developed which positions arousal in relation to other mediating variables affecting commercial impact. The paper concludes with a summary of the more pressing issues arising from the study of excitement as an aspect of media environment.  相似文献   
50.
This paper discusses the philosophical argument and the application of the Triple Font Theory (TFT) for moral evaluation of human acts and attempts to integrate the conceptual components of major moral theories into a systematic internally consistent decision-making model that is theoretically driven. The paper incorporates concepts such as formal and material cooperation and the Principle of Double Effect (PDE) into the theoretical framework. It also advances the thesis that virtue theory ought to be included in any adequate justification of morality and the need to integrate or coordinate notions of virtue into various act-oriented or principles-based ethics. The TFT offers a comprehensive and practical approach to ethical decision-making and is a useful alternative embedded in traditional wisdom. This paper provides a more general framework of the TFT than traditionally presented. Practical judgment is shown to play a constitute role in providing a guide for right action and is the “glue” that integrates the various components of the TFT. Surendra Arjoon is an Associate Professor of Business Ethics at the University of the West Indies, Trinidad. He has served as Chair, Department of Management Studies and as Associate Dean, Faculty of Social Sciences. He is also Vice President of the Trinidad & Tobago Economics Association. His work has appeared in the Journal of Business Ethics, Journal of Markets and Morality, Global Development Studies, Applied Financial Economics, and Social and Economic Studies.  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