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   2244篇
  免费   14篇
财政金融   480篇
工业经济   154篇
计划管理   417篇
经济学   469篇
综合类   13篇
运输经济   23篇
旅游经济   35篇
贸易经济   402篇
农业经济   71篇
经济概况   169篇
邮电经济   25篇
  2023年   12篇
  2021年   14篇
  2020年   34篇
  2019年   44篇
  2018年   48篇
  2017年   54篇
  2016年   71篇
  2015年   32篇
  2014年   74篇
  2013年   234篇
  2012年   100篇
  2011年   80篇
  2010年   95篇
  2009年   98篇
  2008年   76篇
  2007年   80篇
  2006年   72篇
  2005年   65篇
  2004年   60篇
  2003年   61篇
  2002年   56篇
  2001年   52篇
  2000年   40篇
  1999年   41篇
  1998年   41篇
  1997年   36篇
  1996年   38篇
  1995年   30篇
  1994年   22篇
  1993年   29篇
  1992年   26篇
  1991年   28篇
  1990年   18篇
  1989年   18篇
  1988年   17篇
  1987年   11篇
  1985年   28篇
  1984年   34篇
  1983年   18篇
  1982年   15篇
  1981年   28篇
  1980年   22篇
  1979年   19篇
  1978年   15篇
  1977年   28篇
  1976年   17篇
  1975年   14篇
  1974年   11篇
  1973年   16篇
  1972年   11篇
排序方式: 共有2258条查询结果,搜索用时 0 毫秒
71.
    
There is a straightforward economic case based on simple externality arguments for public policies to avert a tobacco‐induced health catastrophe in China. This contrasts with the situation of developed countries where controversial internality arguments must be invoked to provide an efficiency‐based rationale for policy. WHO evidence suggests that there is a widespread lack of knowledge on the adverse health implications of smoking among Chinese. This contributes to an asymmetric information rationale for tobacco control policy. In addition, there are severe direct externality issues associated with secondary tobacco smoke. Despite excises, the price of cigarettes in China remains low by international standards. In addition, attempts to implement “smoke‐free” zones in public areas have so far been unsuccessful. Candidate policy reforms include improved public provision of information on the health impacts of smoking, higher tobacco excises and increased efforts to encourage those who wish to continue smoking to do so by avoiding secondary tobacco smoke impacts on others.  相似文献   
72.
73.
74.
75.
The purpose of this paper is to examine the role of risk in the formation of perceptions of value in the b2b domain, specifically within e-banking. The functional relationships between three types of risk (performance, financial and psychological) and the benefits and sacrifices components of value are tested within a broader nomological network that includes e-service quality (as an antecedent of value) and satisfaction, word-of-mouth and intention to switch (as outcomes of value). The hypothesised relationships are tested, using Partial Least Squares, on data collected through a postal survey from 167 UK-based SME organisations. The results confirm the significant but differential impact of the three types of risk on the two value components. Specifically performance risk and financial risk are found to be significant determinants of benefits, while psychological risk impacts on perceptions of sacrifices. We also provide evidence of the differential impact of the benefits and sacrifices components of value on satisfaction, and the existence of both direct and indirect (through satisfaction) impact of these components on word-of-mouth and intention to switch. This is the first documented empirical investigation of the impact of perceptions of risk in the study of perceptions of value within the domain of b2b marketing and consequently offers new insights into the subject matter. The theoretical and managerial implications of the findings are discussed and the manner in which the identified relationships can aid future research are explicated.  相似文献   
76.
77.
Research linking investments in environmental practices to firm performance has matured over the past years. However, empirical research is still ambiguous on how and whether investments in environmental practices improve a plant's performance. We believe that contingency factors, especially the industry in which plants act has a significant role in the success of environmental investments. Using empirical data collected across a wide range of industries our results indicate that plants competing in dynamic industries such as apparel do on average invest less in supply chain environmental practices compared to plants in static industries. In addition, these environmental investments do not significantly improve operational performance in dynamic industries in terms of cost, quality, delivery and flexibility. However, in static industries environmental investments do significantly improve a plant's operational performance in terms of cost, quality and flexibility.  相似文献   
78.
Classical industrial organization suggests that profitability differences are caused by industry-specific factors. Revisionist and managerial approaches, however, are stressing the predominant importance of firm-specific factors. Empirical evidence is more pronounced for firm-related factors, but recent inquiry also found support for the superiority of industry effects. The present paper examines the discriminating power of the industry variable to separate a German firm sample into homogeneous industry subgroups. The finding is that the industry does not have a significant influence on the dispersion of firm profit rates. Thus, the firm-effect approach to profitability is corroborated.  相似文献   
79.
Got milk? The rapid rise of China’s dairy sector and its future prospects   总被引:1,自引:0,他引:1  
This paper synthesizes recent research and new empirical findings to build a more comprehensive understanding of developments in China’s dairy sector. China’s tremendous rise in dairy demand has been driven by several mutually reinforcing factors: including rapid income growth, promotion by the government and dairy industry, changes in urban lifestyles, and the development of new, more sophisticated marketing channels. Domestic milk output has grown to satisfy rising demand largely by increasing the dairy herd. Substantial increases in productivity have been achieved through technology adoption, but there is evidence that the torrid growth has created inefficiencies because adaptations to marketing rules, infrastructure, and institutions have not kept pace with the changing environment. These results suggest there is ample room for future growth in both domestic milk production and dairy demand, but multinational firms and imported products will likely play and increasing role as China’s dairy market continues to develop.  相似文献   
80.
    
We examine the impact of information technology (IT) on productivity in the public sector econometrically, using data from the BLS Federal Productivity Measurement Program and from Computer Intelligence Infocorp, and by interviewing some government officials. We estimate a production function for government services that includes IT capital as an input, and find a strong positive relationship across federal agencies between productivity growth and computer-intensity growth during the period 1987–92, controlling for growth in compensation and other outlays per employee, and in the number of employees. Our estimates are consistent with the hypothesis that there are 'excess returns' to IT capital.  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