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   3964篇
  免费   78篇
  国内免费   7篇
财政金融   357篇
工业经济   270篇
计划管理   1065篇
经济学   502篇
综合类   627篇
运输经济   31篇
旅游经济   136篇
贸易经济   700篇
农业经济   59篇
经济概况   302篇
  2025年   23篇
  2024年   64篇
  2023年   123篇
  2022年   85篇
  2021年   134篇
  2020年   166篇
  2019年   149篇
  2018年   105篇
  2017年   117篇
  2016年   109篇
  2015年   98篇
  2014年   265篇
  2013年   489篇
  2012年   363篇
  2011年   358篇
  2010年   281篇
  2009年   172篇
  2008年   208篇
  2007年   122篇
  2006年   136篇
  2005年   102篇
  2004年   75篇
  2003年   81篇
  2002年   51篇
  2001年   39篇
  2000年   41篇
  1999年   31篇
  1998年   13篇
  1997年   20篇
  1996年   15篇
  1995年   1篇
  1994年   3篇
  1993年   2篇
  1992年   5篇
  1991年   1篇
  1985年   1篇
  1984年   1篇
排序方式: 共有4049条查询结果,搜索用时 0 毫秒
91.
赵夏明 《价值工程》2014,(9):274-275
本文依据高职院校学生的特征和市场营销课程教改的实践,对市场营销课程教学理念、教学目标、教学方法等方面的教学改革进行了探讨。并提出了以能力为核心的市场营销课程教学改革途径,和一些改革的方法。  相似文献   
92.
    
This paper explores the use of clustering models of stocks to improve both (a) the prediction of stock prices and (b) the returns of trading algorithms.We cluster stocks using k-means and several alternative distance metrics, using as features quarterly financial ratios, prices and daily returns. Then, for each cluster, we train ARIMA and LSTM forecasting models to predict the daily price of each stock in the cluster. Finally, we employ the clustering-empowered forecasting models to analyze the returns of different trading algorithms.We obtain three key results: (i) LSTM models outperform ARIMA and benchmark models, obtaining positive investment returns in several scenarios; (ii) forecasting is improved by using the additional information provided by the clustering methods, therefore selecting relevant data is an important preprocessing task in the forecasting process; (iii) using information from the whole sample of stocks deteriorates the forecasting ability of LSTM models.These results have been validated using data of 240 companies of the Russell 3000 index spanning 2017 to 2022, training and testing with different subperiods.  相似文献   
93.
This study investigates choice-based learning as a choice between lecture-based or team learning in a large class at a large university in a European country. The study was designed as a between-subjects quasi-experiment where students were allocated their preferred learning approach. Data were collected for eight consecutive years (2008–2016). Based on quantitative and qualitative data, this study investigates the effect of choice-based learning on choice satisfaction, student selection and on student learning outcomes. The results show that team learning has a positive effect on learning outcomes. If students are faced with the choice, the majority select lecture-based learning. Additionally, both student groups are satisfied with their selected learning paths but selected them for specific reasons. Finally, choice-based learning provides job satisfaction for the instructors of both learning paths. These results can re-energize the ongoing discussion on why and how to engage students in learning activities.  相似文献   
94.
Research summary : In this study, we build on the micro‐foundations perspective and investigate how individual characteristics contribute to the development of firm absorptive capacity. In particular, we assess how individual learning goal orientation affects firm potential and realized absorptive capacity. Furthermore, we study how individuals' civic virtue acts as a micro‐level social integration mechanism that moderates the effect from firm realized absorptive capacity to potential absorptive capacity. Using the multilevel structural equation modeling technique and data from 871 core‐knowledge employees nested in 139 high‐technology firms, we find support to our major hypotheses. Together, this study finds support for the micro‐foundations' perspective and generates novel insights on how individual‐level factors could be linked with firm‐level heterogeneity in absorptive capacity. Managerial summary : We study how employees' characteristics contribute to a firm's absorptive capacity, that is, the ability of a firm to identify, assimilate, and exploit knowledge from the environment. Because firms have increasingly tapped into external resources to foster innovation over the past two decades, absorptive capacity is crucial to firm learning and success. Using data from 871 core‐knowledge employees in 139 high‐technology firms, we find that individual employees' learning goal orientation, the tendency to seek improvements in employees' competence and to understand or master new things advances the development of a firm's potential and realized absorptive capacity. More important, individual employees' civic virtue, the discretionary involvement in company issues, serves as a social integration mechanism that reduces the gap between firm potential and realized absorptive capacity. Copyright © 2017 John Wiley & Sons, Ltd.  相似文献   
95.
易敏  李奉香 《价值工程》2011,30(2):245-245
提出项目驱动教学法在制图学习领域的可行性措施和效果分析,探索项目驱动教学法实施过程的规律,对项目驱动下的制图学习领域整体设计、内容整体优化、教学内容序化和教学组织等方面进行了有益探究。  相似文献   
96.
    
Leadership development programs (LDPs) have proliferated and diversified but still usually share the ambition of involving the participants’ on-the-job experiences. Yet, the dominant view hereof is crude, not acknowledging the variety of ways used to accomplish it. The Scandinavian context is illustrative for reviewing what we term ‘customization devices’ because of its tradition for LDPs with collective reflection, practice orientation, and broad participation. This review curates and synthesizes 31 studies evaluating empirical experiences with customization devices in Scandinavian university-based LDPs from no earlier than 2010. Such devices fall within three key categories, namely theories, cases, and relationships, and have three key effects: distancing from practice, dedicating to the program, and devising future action. Based on our findings, we challenge the dominant view that open enrollment programs cannot adequately mobilize participants’ experiences by theorizing the distinction between open and closed customization. The review further serves as a resource for LDP designers and instructors to carefully choose and mix customization devices that are complementary in their effects.  相似文献   
97.
    
Business strategy is a complex subject and is usefully examined from several perspectives. This paper applies the lenses of governance and competence to the study of strategy. Both the governance and the competence perspectives have had the benefit of distinguished antecedents. They have also had to deal with tautological reputations. I begin with the governance perspective, with emphasis on the six key moves through which it has been operationalized. I then examine the competence perspective in these same six respects. Governance challenges the competence perspective to apply itself more assiduously to operationalization, including the need to choose and give definition to one or more units of analysis (of which the ‘routine’ is a promising candidate). The research challenges posed by competence to which governance can and should respond include dynamic transaction costs, learning, and the need to push beyond generic governance to address strategy issues faced by particular firms (with their distinctive strengths and disabilities). A lively research future for these two perspectives, individually and in combination, is projected. Copyright © 1999 John Wiley & Sons, Ltd.  相似文献   
98.
    
Outsourcing in many industries has advanced beyond simple component supply to encompass manufacturing of entire products, often by suppliers in emerging economies. Understanding the evolving role and capabilities of suppliers in global supply chains is thus a pressing strategic issue for suppliers and customers alike. We analyze a novel panel dataset of supply relationships in the mobile telecommunications industry to answer the following questions: What factors contribute to a supplier's ability to build technological and market capabilities? Does it matter to whom the firm supplies? Is involvement in product design important, or is manufacturing the key to learning? Do the same types of relationships that support technological innovation also facilitate successful introduction of own‐brand products, or does this require a different “locus” of learning? Copyright © 2013 John Wiley & Sons, Ltd.  相似文献   
99.
The paper introduces the highly problematic nature of modelling in design and technology education and examines the relationship between cognitive and concrete modelling. Its aim is to gain insight into what learners do, rather than what others say they ought to do in their learning activities. The variety of purposes that educators have for learners’ modelling are discussed through examining the contested curriculum justification for design and technology education itself. The paper proposes that learners’ modelling cannot be extracted from the social milieu in which they act and it provides some insights of these social influences through the analysis of two case studies. Their settings are a girls’ secondary school and a college of higher education. Each case study is presented independently but organised with a common format to consider a) the impact of assessment on learning intentions and outcomes; b) cultural influences on learning and modelling; c) social influences on learning and modelling. A discussion of the emergent themes considers implications for teachers. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   
100.
从管理的人本意义上说,管理的功用在于树人、立人与人的发展。管理,能否做久做大,取决因素在用人之道,辅人之道。对人如何管理如何辅成,如何成之、立之、达之,这是组织系统能否长远久大的决定性因素。从这个意义上说,管理学也应就是人学。这是东方式的管理智慧,也是建设和谐社会的重要理念。  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