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   49篇
  免费   1篇
财政金融   14篇
工业经济   5篇
计划管理   6篇
经济学   11篇
旅游经济   1篇
贸易经济   7篇
农业经济   4篇
经济概况   2篇
  2020年   2篇
  2019年   2篇
  2018年   1篇
  2016年   2篇
  2014年   3篇
  2013年   4篇
  2012年   6篇
  2011年   4篇
  2010年   2篇
  2009年   3篇
  2008年   4篇
  2007年   2篇
  2006年   2篇
  2004年   2篇
  2003年   2篇
  1998年   2篇
  1994年   2篇
  1992年   1篇
  1990年   1篇
  1972年   1篇
  1970年   1篇
  1967年   1篇
排序方式: 共有50条查询结果,搜索用时 0 毫秒
41.
42.
Infusing creative thinking competence through the design process of authentic projects requires not only changing the teaching methods and learning environment, but also adopting new assessment methods, such as portfolio assessment. The participants in this study were 128 high school pupils who have studied MECHATRONICS from 10th to 12th grades (16–18 years old). By the end of 12th grade, the pupils had created 57 authentic projects. The intervention program had two parts: first, the pupils documented their project according to a creative design process that had been introduced to them. Second, the projects were assessed according to a creative thinking scale. This scale was designed to assist pupils in documenting the design process. It could be used as a guideline for teachers and pupils during the course of the project. The research examined pupils’ performance during project-based learning. The research tools included: observations of class activities, portfolio assessment, and external matriculation assessment. The findings show first that pupils learned to document their design process. Second, pupils’ projects demonstrated various levels of creative thinking skill. Evidences for high-level documentation of the projects were found in pupils’ portfolios. On the other hand, there is much to be learned about documenting teamwork and pupils’ reflection. This research could assist researchers and teachers who are interested in assessing engineering education outcomes.  相似文献   
43.
We study market games derived from an exchange economy with a continuum of agents, each having one of finitely many possible types. The type of agent determines his initial endowment and utility function. It is shown that, unlike the well-known Shapley–Shubik theorem on market games (Shapley and Shubik in J Econ Theory 1:9–25, 1969), there might be a (fuzzy) game in which each of its sub-games has a non-empty core and, nevertheless, it is not a market game. It turns out that, in order to be a market game, a game needs also to be homogeneous. We also study investment games – which are fuzzy games obtained from an economy with a finite number of agents cooperating in one or more joint projects. It is argued that the usual definition of the core is inappropriate for such a model. We therefore introduce and analyze the new notion of comprehensive core. This solution concept seems to be more suitable for such a scenario. We finally refer to the notion of feasibility of an allocation in games with a large number of players. Some of the results in this paper appear in a previous draft distributed by the name “Cooperative investment games or Population games”. An anonymous referee of Economic Theory is acknowledged for his/her comments  相似文献   
44.
We consider the design of decision rules in an environment with two alternatives, independent private values and no monetary transfers. The utilitarian rule subject to incentive compatibility constraints is a weighted majority rule, where agents' weights correspond to expected gains given that their favorite alternative is chosen. It is shown that a rule is interim incentive efficient if and only if it is a weighted majority rule, and we characterize those weighted majority rules that are ex ante incentive efficient. We also discuss efficiency in the class of anonymous mechanisms and the stability of weighted majority rules.  相似文献   
45.
We analyze a two-machine flow-shop scheduling problem in which the job processing times are controllable by the allocation of resources to the job operations and the resources can be used in discrete quantities. We provide a bicriteria analysis of the problem where the first criterion is to maximize the weighted number of just-in-time jobs and the second criterion is to minimize the total resource consumption cost. We prove that although the problem is known to be NP-hard even for constant processing times, a pseudo-polynomial time algorithm for its solution exists. In addition, we show how the pseudo-polynomial time algorithm can be converted into a two-dimensional fully polynomial approximation scheme for finding an approximate Pareto solution.  相似文献   
46.
This paper considers a signaling game between two competing firms and consumers. The firms have common private information concerning their qualities, and some of the consumers are informed about the firms' qualities. Firms use prices and uninformative advertising as signals of quality. The model reveals that in the separating equilibrium, prices are first climbing and then declining with the proportion of informed consumers, while the expenditure on uninformative advertising is declining. Firms' profits are highest when the proportion of informed consumers is at an intermediate level. Pooling equilibria exist if the proportion of informed consumers is below a certain threshold.  相似文献   
47.
This article suggests that learning about basic concepts concerning the risk and return of assets will reduce perceived risk. We show experimentally that people who learn about these basic concepts are willing to allocate more money to risky assets and consider the asset’s return relative to its risk.  相似文献   
48.
We consider dynamic competition among platforms in a market with network externalities. A platform that dominated the market in the previous period becomes “focal” in the current period, in that agents play the equilibrium in which they join the focal platform whenever such equilibrium exists. Yet when faced with higher-quality competition, can a low-quality platform remain focal? In the finite-horizon case, the unique equilibrium is efficient for “patient” platforms; with an infinite time horizon, however, there are multiple equilibria where either the low- or high-quality platform dominates. If qualities are stochastic, the platform with a better average quality wins with a higher probability, even when its realized quality is lower, and this probability increases as platforms become more patient. Hence, social welfare may decline as platforms become more forward looking.  相似文献   
49.
This article focuses on the impact of religious institutions on entrepreneurship. We find clear evidence that different religious institutions have a significantly different impact on the tendency to become an entrepreneur. Our article makes important contributions to the research of both religion and entrepreneurship. First, it proposes empirical evidence in which the country’s main religion significantly affects its level of entrepreneurship at the macro level. Second, it adds to our theoretical understanding of the mechanisms that characterize the effects of religion on entrepreneurship. We suggest that macro effects of religion as part of the country’s culture and institutions affect the country’s level of entrepreneurship beyond the direct effects of religion on the behavior of the religion’s members in the society.  相似文献   
50.
Abstract

The study discusses the use of private labels, both for retailers and manufacturers, within the context of international markets. It is proposed that agreements between manufacturers and retailers from different markets may solve or mitigate some abiding frictions and serve the interest of both parties. Using data collected through 101 in-depth interviews among marketing managers, qualitative and quantitative procedures were used to explore producers' attitudes and behaviour in regard to agreements to manufacturing for overseas retailers' private labels. The study revealed that lower transaction costs, quicker penetration into new markets and retailers' reputations among customers are the dominant motivators while short-term strategy, appropriate mainly for grocery items, increases dependency on retailers and deters manufactures from contracting with overseas retailers' private labels. The study also found that gaps exist between manufacturers' perceptions and actual behaviour, mediated particularly by firm size and product categories. The findings, which reflect observed practice, are interpreted through theoretical propositions related to earlier studies. Managerial implications are provided.  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