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   17292篇
  免费   26篇
财政金融   2720篇
工业经济   781篇
计划管理   2673篇
经济学   4087篇
综合类   484篇
运输经济   7篇
旅游经济   3篇
贸易经济   4548篇
农业经济   15篇
经济概况   1384篇
信息产业经济   44篇
邮电经济   572篇
  2024年   4篇
  2023年   14篇
  2022年   5篇
  2021年   18篇
  2020年   37篇
  2019年   37篇
  2018年   2321篇
  2017年   2071篇
  2016年   1244篇
  2015年   109篇
  2014年   121篇
  2013年   126篇
  2012年   472篇
  2011年   1968篇
  2010年   1843篇
  2009年   1544篇
  2008年   1532篇
  2007年   1885篇
  2006年   75篇
  2005年   396篇
  2004年   473篇
  2003年   556篇
  2002年   259篇
  2001年   65篇
  2000年   55篇
  1999年   4篇
  1998年   20篇
  1997年   1篇
  1996年   16篇
  1995年   4篇
  1994年   1篇
  1993年   4篇
  1992年   2篇
  1991年   2篇
  1990年   4篇
  1989年   2篇
  1988年   1篇
  1987年   1篇
  1986年   14篇
  1985年   1篇
  1984年   1篇
  1983年   1篇
  1982年   2篇
  1981年   1篇
  1980年   2篇
  1977年   1篇
  1948年   1篇
  1942年   1篇
  1941年   1篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
911.
This article presents an application of a bibliometric and visual study of the research carried out on a social science subfield, concretely the consumer behaviour research (CBR), from a longitudinal perspective (period 1966–2008). The study combines performance analysis and science mapping for detecting and visualizing conceptual subdomains. Quantitative and qualitative measures are used in order to identify the most prominent themes. Quantitative data are used to put together very related concepts (themes or clusters of topics), while qualitative indicators (as those based on citations) are used to measure the quality and/or impact of the detected themes. The study also uses bibliometric maps to show in a visual way the associations between the main concepts treated by the CBR community. The maps provide insight into the structure of the CBR, visualize the division of the field into several subfields, and indicate the relationships between these subfields. Co-word analysis is the bibliometric technique used to identify the main themes. All this allows us to quantify and visualize the thematic evolution of the CBR. It also helps to both experts and novices to understand the current state of the art of the CBR and to predict where future research could lead.  相似文献   
912.
Children are increasingly seen as competent informants on their activities, views and needs. Different abilities of children can lead to inadequate (formally or regarding the content) answers or to the misunderstanding of proceedings during an interview process. One inadequate or at least unintended (on the part of the researcher) response is a “don’t know” answer (DK). To study when and why DK answers occur, a possible cause for them in the cognitive process and their relation to age, we analysed the DK answers given in qualitative semi-structured interviews with children aged 5–11, conducted face-to-face and on the telephone. Each of 56 children was interviewed twice, once face-to-face and once via telephone. The results show that age had an effect on DK responses due to the cognitive state of the respondent and their communicative intent, but there was no difference in the number of DKs due to problems with the research instrument or due to an adequacy judgement in respect of respondent age.  相似文献   
913.
In 2007 Nicholas Stern’s Review (in Science 317:201–202, 2007) estimated that global GDP would shrink by 5–20% due to climate change which brought forth calls to reduce emissions by 30–70% in the next 20 years. Stern’s results were contested by Weitzman (in J Econ Lit XLV(3):703–724, 2007) who argued for more modest reductions in the near term, and Nordhaus (in Science 317:201–202, 2007) who questioned the low discount rate and coefficient of relative risk aversion employed in the Stern Review, which caused him to argue that ‘the central question about global-warming policy—how much how, how fast, and how costly—remain open.’ We present a simulation model developed by Färe et al. (in Time substitution with application to data envelopment analysis, 2009) on intertemporal resource allocation that allows us to shine some light on these questions. The empirical specification here constrains the amount of undesirable output a country can produce over a given period by choosing the magnitude and timing of those reductions. We examine the production technology of 28 OECD countries over 1992–2006, in which countries produce real GDP and CO2 using capital and labor and simulate the magnitude and timing necessary to be in compliance with the Kyoto Protocol. This tells us ‘how fast’ and ‘how much’. Comparison of observed GDP and simulated GDP with the emissions constraints tells us ‘how costly’. We find these costs to be relatively low if countries are allowed reallocate production decision across time, and that emissions should be cut gradually at the beginning of the period, with larger cuts starting in 2000.  相似文献   
914.
The paper analyzes how the structure of social networks affects innovation diffusion and competition under different information regimes. Diffusion is modeled as the result of idiosyncratic adoption thresholds, local network effects and information diffusion (broadcasting and demonstration effect from previous adopters). A high social cohesion decreases the probability of one innovation cornering the market. Nonetheless, with imperfect information, in small-world networks the higher speed of diffusion produced by the low average distance increases this probability. A low social cohesion also increases the probability of falling into traps of under-adoption. However, such probability is significantly lower with imperfect information, because such regime is characterized by higher levels of market concentrations and this reduces the frictions due to the coexistence of non-compatible product innovations.  相似文献   
915.
Schoolwork, especially lessons in manual skills is often associated with various ergonomics stresses. These stresses are the result not only of school obligations but also of the physical working environment and inadequate lesson planning. Much can be done in this field if certain approaches are taken into consideration at the work planning stage. Thus we can use certain analytical methods, such as the Method of Temporary Observations (Multi-Moment Method) and OWAS (a method for the evaluation of postural load during work), when positioning stressful lesson factors. This can be done in a relatively simple way in the field of time rationalisation as well as in the field of dimensional work adjustment to pupils. Research results in this paper show that by using a planned directed approach in this field, it is possible to achieve, a higher level of efficiency with normal levels of fatigue.  相似文献   
916.
In this research we conduct a systematic and critical review of the literature on executive compensation in Asian countries. We discuss the particular characteristics of executive compensation in Asia in terms of pay criteria, contingency factors, and implications for performance and turnover. We thereby highlight the unique contributions of Asian studies to the mainstream Western research in executive compensation, and call for future research integrating agency theory and the institution-based view in examining pay variances across different institutions.  相似文献   
917.
After studying the effects of Louisiana’s post-hurricane “thank you” campaigns, the researchers find expressions of gratitude significantly improve perceptions of Louisiana in the midst of its recovery. Through a national survey conducted November 2006, they find that those who saw or heard a thank you advertisement have more positive attitudes toward the state and its people, a greater willingness to pay a premium for its products, services and travel to the state, and spread positive word-of-mouth, thus justifying the use of public funds to support the campaign. The authors investigate the role of participation on the effectiveness of expressions of gratitude and identify the mediating role of affective commitment in driving the positive results attributed to expressions of gratitude.  相似文献   
918.
This study investigates whether consumers’ perceptions of motives influence their evaluation of corporate social responsibility (CSR) efforts. The study reveals the mediating role of consumer trust in CSR evaluation frameworks; managers should monitor consumer trust, which seems to be an important subprocess regulating the effect of consumer attributions on patronage and recommendation intentions. Further, managers may allay the negative effects of profit-motivated giving by doing well on service quality perceptions. On the other hand, appropriately motivated giving continues to positively affect trust regardless of the performance of the firm on service quality provision.  相似文献   
919.
The authors review Peter Drucker’s contributions to marketing theory and practice. A bibliometric analysis of Drucker’s academic influence in marketing is presented. The five main tenets that are derived from the bibliometric study are expanded upon as follows: (1) The Marketing Concept: Creating Value for Customers; (2) Broadened Role of Marketing in Society: Corporate Social Responsibility, Consumerism, Social Marketing, and Lessons from Non-Profit Organizations; (3) Contributions to Marketing Strategy: The Obvious and Not So Obvious; (4) Marketing-Innovation Interface: New Product Development; (5) Future of Globalization: Rise of Non-National Enterprises.
Jagdish N. ShethEmail:
  相似文献   
920.
Although investments in marketing and innovation capabilities theoretically help firms to compete in dynamic markets and enhance performance, company size has a strong influence on whether this is the case. In a test of a proposed conceptual model, this study of 692 small, medium, and large enterprises found that large firms prospered from building dynamic capabilities under conditions of high industry competitiveness, while investments in innovation and marketing individually diminished small firms’ performance. The effect was mixed for medium-size firms. In small enterprises, however, dynamic capability proved to be crucial in order to withstand competition. Therefore, taking into account these firms’ limited resources, managerial efforts should be focused on the integration of marketing and innovation capabilities, because each capability alone does not have a significant positive impact on performance. In medium-sized enterprises, the support of marketing capability is required to raise profitability under conditions of high industry competitiveness; otherwise, innovation would not lead to actual profits. For large enterprises, industry competitiveness was found to be a less serious threat to performance, and instead is a catalyst to the development of capabilities, suggesting that managers of such firms should focus on building long-term strategic advantages.  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