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   633篇
  免费   37篇
财政金融   120篇
工业经济   61篇
计划管理   136篇
经济学   100篇
综合类   10篇
运输经济   16篇
旅游经济   19篇
贸易经济   126篇
农业经济   32篇
经济概况   49篇
邮电经济   1篇
  2024年   2篇
  2023年   2篇
  2022年   4篇
  2021年   4篇
  2020年   11篇
  2019年   22篇
  2018年   27篇
  2017年   21篇
  2016年   18篇
  2015年   21篇
  2014年   20篇
  2013年   84篇
  2012年   30篇
  2011年   42篇
  2010年   26篇
  2009年   28篇
  2008年   29篇
  2007年   23篇
  2006年   19篇
  2005年   21篇
  2004年   18篇
  2003年   20篇
  2002年   18篇
  2001年   11篇
  2000年   13篇
  1999年   17篇
  1998年   14篇
  1997年   12篇
  1996年   9篇
  1995年   6篇
  1994年   8篇
  1993年   7篇
  1992年   4篇
  1991年   5篇
  1989年   4篇
  1988年   4篇
  1987年   2篇
  1986年   3篇
  1985年   4篇
  1984年   4篇
  1983年   5篇
  1982年   4篇
  1980年   1篇
  1979年   5篇
  1978年   3篇
  1977年   8篇
  1976年   2篇
  1975年   1篇
  1974年   1篇
  1971年   1篇
排序方式: 共有670条查询结果,搜索用时 31 毫秒
661.
While donation-based crowdfunding for health-related purposes raises hundreds of millions of dollars yearly, most campaigns fail to meet their fundraising goals. Crowdfunding campaigners are advised to seek traditional news media coverage of their campaigns to increase donor interest and fundraising success. In this study, we seek to better understand what happens to donor behavior via donation-based crowdfunding campaigns after they receive news media coverage. While research has focused on the impact of social media sharing on donation-based crowdfunding, academic analyses of the impact of news media coverage is largely speculative. We searched the Newsstream and Factiva databases for Canadian news coverage of domestic donation-based health-related crowdfunding campaigns. This news coverage was paired with the crowdfunding campaign reported on in the story. Campaign text and daily fundraising totals and donor amounts were recorded for the 7 days before and after publication of the news article. The authors identified emergent patterns in this data around the amplification of personal information from the crowdfunding campaign to a wider audience and inclusion of new personal details. This process identified 17 relevant pairs of news stories and crowdfunding campaigns over a review period of just under 5 months in 2021–22. These campaigns raised a total of CAD$443,134 (median CAD$20,030) out of a total goal of CAD$772,500 (median CAD$40,000) or 57.4% of the requested funds. Median campaign donations and donor numbers increased for the 3 days following publication of the news article. Our exploratory analysis shows a relationship between crowdfunding campaigns that receive news media coverage and the numbers of donations and total amount donated shortly after this coverage. Campaigners may feel pressure to participate in news media coverage in order to reach their fundraising goals. Media coverage has implications for campaign recipient privacy and the equitable distribution of health-related funding. This exploratory analysis establishes the need for additional research on this topic.  相似文献   
662.
The Journal of Real Estate Finance and Economics - Drawing on a sample, of U.S. multi-family apartment and school data from across 45 U.S. Core Based Statistical Areas, this paper examines the...  相似文献   
663.
664.
665.
666.
The purpose of this research is to investigate the structural relationship between Uber corporate social responsibility (CSR), brand trust, and brand loyalty. Stakeholder theory is the theoretical foundation of the study. The CSR subdimensions of eco-friendliness, quarantine, user privacy, user safety, and driver well-being are used. Amazon Mechanical Turk was employed for data collection. The number of observations is 405. A structural equation model was implemented to test the research hypotheses. This study demonstrated the accountability of stakeholder theory for Uber brand management by showing a significant link between quarantine, user privacy, user safety, driver well-being, brand trust, and brand loyalty. This study contributes to the literature by validating the explanatory power of stakeholder theory in the case of Uber brand management.  相似文献   
667.
We employ deep learning in forecasting high-frequency returns at multiple horizons for 115 stocks traded on Nasdaq using order book information at the most granular level. While raw order book states can be used as input to the forecasting models, we achieve state-of-the-art predictive accuracy by training simpler “off-the-shelf” artificial neural networks on stationary inputs derived from the order book. Specifically, models trained on order flow significantly outperform most models trained directly on order books. Using cross-sectional regressions, we link the forecasting performance of a long short-term memory network to stock characteristics at the market microstructure level, suggesting that “information-rich” stocks can be predicted more accurately. Finally, we demonstrate that the effective horizon of stock specific forecasts is approximately two average price changes.  相似文献   
668.
The Journal of Real Estate Finance and Economics - This paper examines U.S. residential consumer willingness to pay for location efficiency, a normative advancement of new urbanism. Drawing on a...  相似文献   
669.
International Journal of Technology and Design Education - We implemented design practices for a total of 85 pre-service teachers in a teacher-development course. This mixed-method study explored...  相似文献   
670.
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