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   132049篇
  免费   3662篇
  国内免费   1篇
财政金融   25588篇
工业经济   10925篇
计划管理   21026篇
经济学   28908篇
综合类   1464篇
运输经济   748篇
旅游经济   2498篇
贸易经济   21613篇
农业经济   6077篇
经济概况   16614篇
信息产业经济   7篇
邮电经济   244篇
  2021年   837篇
  2020年   1625篇
  2019年   2420篇
  2018年   2313篇
  2017年   2493篇
  2016年   2651篇
  2015年   2063篇
  2014年   3397篇
  2013年   15385篇
  2012年   4180篇
  2011年   4112篇
  2010年   3657篇
  2009年   4274篇
  2008年   3859篇
  2007年   3197篇
  2006年   3577篇
  2005年   3557篇
  2004年   3117篇
  2003年   2821篇
  2002年   2816篇
  2001年   2501篇
  2000年   2307篇
  1999年   2173篇
  1998年   2044篇
  1997年   2055篇
  1996年   1942篇
  1995年   1926篇
  1994年   1935篇
  1993年   1903篇
  1992年   1908篇
  1991年   1812篇
  1990年   1686篇
  1989年   1561篇
  1988年   1494篇
  1987年   1502篇
  1986年   1579篇
  1985年   2352篇
  1984年   2232篇
  1983年   2028篇
  1982年   1904篇
  1981年   1871篇
  1980年   1829篇
  1979年   1744篇
  1978年   1577篇
  1977年   1582篇
  1976年   1347篇
  1975年   1237篇
  1974年   1162篇
  1973年   1146篇
  1972年   860篇
排序方式: 共有10000条查询结果,搜索用时 2 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