全文获取类型
收费全文 | 44327篇 |
免费 | 432篇 |
国内免费 | 3篇 |
专业分类
财政金融 | 6224篇 |
工业经济 | 2788篇 |
计划管理 | 8447篇 |
经济学 | 8818篇 |
综合类 | 2737篇 |
运输经济 | 182篇 |
旅游经济 | 148篇 |
贸易经济 | 7491篇 |
农业经济 | 1658篇 |
经济概况 | 5586篇 |
信息产业经济 | 49篇 |
邮电经济 | 634篇 |
出版年
2024年 | 61篇 |
2023年 | 254篇 |
2022年 | 467篇 |
2021年 | 672篇 |
2020年 | 659篇 |
2019年 | 439篇 |
2018年 | 2609篇 |
2017年 | 2725篇 |
2016年 | 1696篇 |
2015年 | 709篇 |
2014年 | 920篇 |
2013年 | 1472篇 |
2012年 | 2571篇 |
2011年 | 5519篇 |
2010年 | 4854篇 |
2009年 | 3402篇 |
2008年 | 3501篇 |
2007年 | 3750篇 |
2006年 | 2150篇 |
2005年 | 2217篇 |
2004年 | 995篇 |
2003年 | 1034篇 |
2002年 | 714篇 |
2001年 | 501篇 |
2000年 | 275篇 |
1999年 | 116篇 |
1998年 | 106篇 |
1997年 | 77篇 |
1996年 | 67篇 |
1995年 | 28篇 |
1994年 | 30篇 |
1993年 | 30篇 |
1992年 | 33篇 |
1991年 | 27篇 |
1990年 | 20篇 |
1989年 | 11篇 |
1988年 | 12篇 |
1987年 | 5篇 |
1986年 | 13篇 |
1985年 | 1篇 |
1984年 | 14篇 |
1983年 | 2篇 |
1980年 | 2篇 |
1978年 | 1篇 |
1900年 | 1篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Manne Kallio Mika Metsärinne 《International Journal of Technology and Design Education》2017,27(1):31-50
This article is a part of a research project aimed to find out how different background variables are related to learning outcomes in school subject Sloyd as found in the national evaluation of the Finnish National Board of Education. Results from this larger research project were previously published in this journal, where pupils’ readiness for Self-Regulated Learning were reported. Since then, pupils’ experiences of classroom techniques, attitudes towards the subject, leisure time interests and learning within the two domains of the subject (Technical Domain and Textile Domain, as the subject is usually divided in Finland) have been studied and results have been published in different journals. In this article, a new Structural Equation Model concludes the previous results. The new model highlights two paths of how the use of different learning orientations can predict successful learning outcomes. These paths can be followed using two pedagogical models: the Exploratory Production Approach and the Domain Specific Approach. Experiencing Learner-Centred Learning predicts positive attitudes and success in Exploratory Production activities. Experiencing Collaborative Learning predicts success in domain specific learning outcomes. Success in Exploratory Production predicts successful learning outcomes in both domains. The conclusion is that regulatory knowledge, “why”, is related to production activities and it is processed prior to domain specific knowledge, “what” and “how”. To develop the subject and pedagogy for schools and teacher training, it is not important to follow an approach defined by the domains (technical or textile). It is more important to teach pupils how to manage in the modern technological world and to understand why they need to be able to improve their life-world through Exploratory Production activities. 相似文献
992.
The reorientations of energy policy, and in particular the promotion of renewables, have changed the market conditions for energy companies significantly. Over recent years, the resulting challenges put the energy companies’ financial ratios under severe stress. As the need to invest remains urgent, energy firms seek to broaden and diversify their sources of funding. Against this backdrop, the article addresses an innovative form of securities-based debt financing for energy companies, which explicitly links the financing transaction to the investing of funds in renewable energy projects. Due to the early stage of development of so called green (project) bonds, an initial disambiguation is essential. Thereafter, current market processes, structures and rules are considered. Based hereupon, it is possible to discuss the new opportunities that green project bonds afford energy companies. 相似文献
993.
994.
995.
The Role of Product Originality,Usefulness and Motivated Consumer Innovativeness in New Product Adoption Intentions 下载免费PDF全文
Prior research has posited that product attributes are primary drivers of success that a firm must consider to develop a competitive advantage. Two product attributes, originality and usefulness, have been identified in the literature as significant dimensions of new product success. Customer demands differ, and more purchase intentions toward a new product depend on how consumers connect the product attributes to their own individual characteristics. Studying motivated consumer innovativeness as a personality trait may improve our understanding of the motivations for adopting innovations; however, questions remain regarding whether the effects of originality and usefulness on consumers' intentions to adopt are different when levels of these attributes are matching or dissimilar and what the relationship is between these effects and motivated consumer innovativeness. This study seeks to empirically investigate these effects and their relations by collecting data from 560 potential consumers in China. This paper uses hierarchical regression analysis to test hypotheses in four product domains as representative of higher or lower levels of usefulness and originality. The research shows that new product originality affects consumers' intentions to adopt new products only if it matches the level of new product usefulness. The results also reveal that motivated consumer innovativeness has a positive moderating role on the relationship between new product originality and consumers' new product adoption intentions when both attributes are at a lower level. The theoretical and practical implications for new product development and marketing communications are discussed. 相似文献
996.
Opening the Black Box of Upper Echelons in China: TMT Attributes and Strategic Flexibility 下载免费PDF全文
Many scholars have suggested that strategic flexibility is a critical firm capability to survive in today's competitive arena. The decision to take strategic actions to make the firm more strategically flexible typically originates in the top management team (TMT). As the principal decision‐making unit of the firm, TMT members' information acquisition and processing capabilities and subsequent interpretation of environmental changes critically influence the decision to make the firm more strategically flexible to achieve a better fit with its market environment. Therefore, in order to understand how firms can adapt to environmental changes, scholars must study the sociopsychological processes of interaction among members of the TMT. This study examines the relationships between TMT's sociopsychological attributes (shared vision, social integration, and political ties) and strategic flexibility, which is decomposed into organizational flexibility and technological flexibility. The study further investigates how the level of competitive intensity can moderate the relationships. All the hypotheses are tested using structural equation models based on the survey data from 227 firms in China. The results show that organizational flexibility mediates the impact of TMT's social integration and political ties on technological flexibility. Surprisingly, a TMT's shared vision for the firm neither impedes nor facilitates the firm's effort in attaining the desired degree of organizational flexibility. However, TMT's shared vision does have a positive and direct impact on technological flexibility. Moreover, intense competition amplifies the positive impact of TMT social integration on the degree of organizational flexibility, but there is no significant moderating effect of competitive intensity on the relationship between a TMT's political ties and organizational flexibility. The results extend previous research by highlighting the importance of TMTs' sociopsychological attributes in driving technological flexibility, through the mediating impact of organizational flexibility. 相似文献
997.
冲蚀磨损是导致油气井防砂完井中筛管失效的重要原因。为了防止或减小筛管冲蚀磨损对油气井生产造成的危害,许多研究者针对筛管冲蚀磨损开展了大量研究工作。结合这方面的研究工作,比较全面地阐述了筛管冲蚀磨损原因、影响因素、实验方法、预测模型,以及防冲蚀筛管方面的内容,并且总结了预防筛管冲蚀磨损的措施。 相似文献
998.
999.
Michael E Drew Adam N Walk Jason West John Cameron 《Journal of Financial Services Marketing》2014,19(4):291-303
Highly risk-averse retirees are generally advised to adopt a fixed spending strategy such as the 4% withdrawal rule. To prevent the premature depletion of a retirement portfolio, the rule attempts to proxy as the ‘safe withdrawal rate’. But a constant withdrawal rate means that retirees accumulate unspent surpluses when markets outperform and face spending shortfalls when markets underperform. While a safe withdrawal rate can prevent spending shortfalls, the opportunity cost of unspent surpluses associated with this strategy can be extreme. We apply a range of basic investment decision rules to a retirement portfolio applying various withdrawal rates and examine the probability of shortfalls over a retirement horizon. Using a block bootstrap simulation technique, we examine decision rules relating to stock and bond investments. Our results show that retirement portfolios with a bias towards stocks coupled with a decision rule that sources withdrawals from bonds and cash before stocks significantly outperforms alternative withdrawal strategies, despite the inherent increase in volatility. This finding is in direct contrast to the safe withdrawal rate conventions used in contemporary financial advice models. 相似文献
1000.
According to agency theory, we hypothesize that underpayment of top management motivates management to overinvest. Using a sample of Chinese-listed companies for the period 2005-10, we assess the effect of managerial compensation on overinvestment and the effect of overinvestment on managerial private benefits, including future compensation and perquisites, as well as on firm performance. We find that underpayment does motivate overinvestment, which increases managerial private benefits but not firm value. 相似文献