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   131399篇
  免费   3786篇
  国内免费   1篇
财政金融   25369篇
工业经济   10849篇
计划管理   21090篇
经济学   28666篇
综合类   1466篇
运输经济   880篇
旅游经济   2497篇
贸易经济   21437篇
农业经济   6057篇
经济概况   16630篇
信息产业经济   8篇
邮电经济   237篇
  2021年   825篇
  2020年   1609篇
  2019年   2375篇
  2018年   2296篇
  2017年   2468篇
  2016年   2679篇
  2015年   2082篇
  2014年   3401篇
  2013年   15240篇
  2012年   4207篇
  2011年   4105篇
  2010年   3674篇
  2009年   4269篇
  2008年   3872篇
  2007年   3197篇
  2006年   3552篇
  2005年   3534篇
  2004年   3083篇
  2003年   2772篇
  2002年   2770篇
  2001年   2473篇
  2000年   2279篇
  1999年   2152篇
  1998年   2016篇
  1997年   2033篇
  1996年   1936篇
  1995年   1910篇
  1994年   1927篇
  1993年   1900篇
  1992年   1898篇
  1991年   1811篇
  1990年   1683篇
  1989年   1561篇
  1988年   1499篇
  1987年   1506篇
  1986年   1576篇
  1985年   2335篇
  1984年   2226篇
  1983年   2022篇
  1982年   1892篇
  1981年   1873篇
  1980年   1825篇
  1979年   1744篇
  1978年   1579篇
  1977年   1581篇
  1976年   1341篇
  1975年   1240篇
  1974年   1160篇
  1973年   1148篇
  1972年   859篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.

We use topic modeling to study research articles in environmental and resource economics journals in the period 2000–2019. Topic modeling based on machine learning allows us to identify and track latent topics in the literature over time and across journals, and further to study the role of different journals in different topics and the changing emphasis on topics in different journals. The most prevalent topics in environmental and resource economics research in this period are growth and sustainable development and theory and methodology. Topics on climate change and energy economics have emerged with the strongest upward trends. When we look at our results across journals, we see that journals have different topical profiles and that many topics mainly appear in one or a few selected journals. Further investigation reveal latent semantic structures across research themes that only the insider would be aware.

  相似文献   
2.
3.
Prior research has shown that the well-being of employees engaged in intensive work can vary with the discretion their jobs afford regarding how and when to carry out the work. This article explores a different avenue. It argues that well-being also varies with employees’ individual motives for working intensively. The article introduces self-determination theory to the domain of work intensity and focuses on two hypotheses. The first is whether intensive work driven by explicit or implicit incentives is more positively associated with an employee's job satisfaction than intensive work driven by job demands. The second is whether intensive work driven by intrinsic motives is more positively associated with job satisfaction than that driven by explicit or implicit incentives. In both these cases, the article also examines whether equivalent effects exist on (reduced) quit intentions. Original data from a major Greek grocery chain provide corroborative evidence that is robust to a rich set of covariates, including increasingly demanding adjustments for job discretion. The findings contribute to a more complete understanding of why differences in well-being exist among employees performing intensive work, with implications for workers and employers.  相似文献   
4.
5.
Journal of Business Ethics - Prior research has demonstrated a strong relationship between team performance and team members’ team efficacy beliefs and perceptions of social integration....  相似文献   
6.
We collected 469 frontal face images of Ukrainian cabinet ministers who were in office in 2000–2020. For each image, the minister's body mass index was estimated using a computer vision algorithm. The time series of median estimated body mass index of cabinet ministers co-moves over time with two existing measures of corruption – World Bank worldwide governance indicator Control of Corruption, and the discrepancy between the quantity of luxury wristwatches exported from Switzerland to Ukraine (reported by Swiss statistics) and the corresponding quantity imported by Ukraine from Switzerland (reported by Ukrainian statistics).  相似文献   
7.
ABSTRACT

The purpose of this research is to analyze whether the Brazilian economy behaved under a wage-led or profit-led regime between 1960 and 2011, considering a Post-Kaleckian model in a context of external constraints. The time span is limited by data availability (i.e., 2011). To answer the question of whether the Brazilian economy works under a wage-led or profit-led regime, we propose a simple Post-Kaleckian model. The model suggests that a profit-led regime is more probable for Brazil. Moreover, a wage-led regime occurs when a balance of payments constrained growth model is taken into consideration. Likewise, the real exchange rate has a positive impact on economic growth through the export channel. This result is a novelty in the recent literature about the relationship between real exchange rate and economic growth within a Post-Kaleckian model. The Brazilian economy was chosen as it is one of the biggest economies in Latin America.  相似文献   
8.
This paper addresses the debate over aggressive tax‐planning models and analyzes the role of tax consultants. It focuses on the dynamic interaction between innovation and imitation of aggressive tax‐planning products and governmental tax regulation, and it highlights the importance of the length of regulatory lag in comparison with the time it takes the tax‐consulting industry to imitate newly innovated tax‐avoidance products. It reveals an alignment of interests between highly innovative tax‐consulting firms and the governmental tax legislator/regulator. The conclusions are also relevant for the policy debate on mandatory disclosure rules about aggressive tax‐planning models.  相似文献   
9.
10.
This study explores the conditional version of the capital asset pricing model on sentiment to provide a behavioural intuition behind the value premium and market mispricing. We find betas (β) and the market risk premium to vary over time across different sentiment indices and portfolios. More importantly, the state β derived from this sentiment-scaled model provides a behavioural explanation of the value premium and a set of anomalies driven by mispricing. Different from the static β–return relation that gives a flat security market line, we document upward security market lines when plotting portfolio returns against their state βs and portfolios with higher state βs earn higher returns.  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