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   41029篇
  免费   1011篇
财政金融   7421篇
工业经济   2744篇
计划管理   7110篇
经济学   9543篇
综合类   410篇
运输经济   294篇
旅游经济   690篇
贸易经济   6181篇
农业经济   2052篇
经济概况   5483篇
信息产业经济   1篇
邮电经济   111篇
  2021年   275篇
  2020年   447篇
  2019年   632篇
  2018年   963篇
  2017年   946篇
  2016年   884篇
  2015年   594篇
  2014年   932篇
  2013年   4162篇
  2012年   1191篇
  2011年   1216篇
  2010年   1029篇
  2009年   1182篇
  2008年   1206篇
  2007年   1049篇
  2006年   983篇
  2005年   912篇
  2004年   894篇
  2003年   872篇
  2002年   819篇
  2001年   780篇
  2000年   785篇
  1999年   650篇
  1998年   663篇
  1997年   612篇
  1996年   634篇
  1995年   602篇
  1994年   635篇
  1993年   653篇
  1992年   625篇
  1991年   649篇
  1990年   605篇
  1989年   501篇
  1988年   474篇
  1987年   484篇
  1986年   520篇
  1985年   744篇
  1984年   713篇
  1983年   690篇
  1982年   670篇
  1981年   602篇
  1980年   594篇
  1979年   598篇
  1978年   520篇
  1977年   456篇
  1976年   396篇
  1975年   392篇
  1974年   343篇
  1973年   336篇
  1972年   282篇
排序方式: 共有10000条查询结果,搜索用时 78 毫秒
61.
Workers' rewards and career perspectives often depend on how their supervisors perceive their performance. However, evaluating a worker's performance is often difficult. We develop a model in which a worker is uncertain about his own performance and about his supervisor's ability to assess him. The supervisor gives the worker a performance appraisal aiming to affect both the worker's self‐perception and his own credibility in assessing the performance. We examine how performance appraisals affect the worker's future performance. Our model's predictions are consistent with empirical findings. Supervisors give, on average, “too” positive appraisals, and both positive and negative feedback can (de)motivate workers.  相似文献   
62.
63.
64.
An important initial step in accounting is mapping financial transfers to the corresponding accounts. We devised machine-learning-based systems that automate this process. They use word embeddings with character-level features to process transaction texts. When considering 473 companies independently, our approach achieved an average top-1 accuracy of 80.50%, outperforming baselines that exclude the transaction texts or rely on a lexical bag-of-words text representation. We extended the approach to generalizes across companies and even across different corporate sectors. After standardization of the account structures and careful feature engineering, a single classifier trained on 44 companies from 28 sectors achieved a test accuracy of more than 80%. When trained on 43 companies and tested on the remaining one, the system achieved an average performance of 64.62%. This rate increased to nearly 70% when considering only the largest sector.  相似文献   
65.
The Journal of Real Estate Finance and Economics - This paper investigates whether analysts’ estimates of firm fundamental value transmit unique information to security markets. Previous work...  相似文献   
66.
Poverty rate calculations are often based on household surveys that exclude some of the groups most vulnerable to poverty such as the homeless. This paper documents the nature of the excluded groups and the quantitative importance of their omission for the Czech Republic. Our study combines European Union Statistics on Income and Living Conditions data for 2011 with information from the 2011 Population Census. Our preferred estimate indicates an increase in the poverty rate by almost one percentage point. The paper contributes to accurately identifying the most vulnerable members of the society, which is essential for setting effective social policies.  相似文献   
67.
68.
This article addresses one under‐studied aspect of Charles I's finances during his Personal Rule: the licensing of tobacco retailers. While it was ultimately a failed project, the tobacco retail licence project was fiscally successful before the transformative events of the 1640s triggered its demise. The project enabled tobacco retail licensees to establish commercial outlets for the marketing of tobacco throughout England and Wales, and cooperation with pre‐existing officeholders contributed to the apprehension of unlicensed retailers. Ultimately, the geographic breadth of tobacco licences translated into much‐needed royal revenue which, when added to other projects and patents, contributed to the king's financial survival. The evidence presented here suggests that we may want to rethink some of our assumptions for how the process of state formation worked and that earlier seventeenth‐century ‘prototypes’ of taxation were more fiscally successful than previously recognized.  相似文献   
69.
The purpose of this study was to develop and evaluate a Chinese-Mandarin version of the revised new ecological paradigm (NEP-R) scale. In a sample of 515 Mandarin-speaking Chinese nationals, we first assessed the factor structure and internal consistency of the NEP-R and assessed its validity by examining associations with global warming risk perceptions and mitigation behavior. Respondents completed the NEP-R scale, together with measures of risk perception and mitigation behavior. Exploratory and confirmatory factor analyses indicated that a two-factor solution, reflecting ecocentric and anthropocentric worldviews, best fit the data. Multi-group path analysis revealed that respondents with stronger ecocentric and weaker anthropocentric worldviews perceived more risks associated with global warming. In turn, respondents who perceived more risks reported engaging in more global warming mitigation behaviors. But importantly, the path between risk perceptions and behavior was significantly stronger for highly educated respondents than for less educated respondents, suggesting that education may represent an important strategy for bridging the gap between perceived risks about global warming and action.  相似文献   
70.
Do prior lending relationships result in pass‐through savings (lower interest rates) for borrowers, or do they lock in higher costs for borrowers? Theoretical models suggest that when borrowers experience greater information asymmetry, higher switching costs, and limited access to capital markets, they become locked into higher costs from their existing lenders. Firms in Chapter 11 seeking debtor‐in‐possession (DIP) financing often fit this profile. We investigate the presence of lock‐in effects using a sample of 348 DIP loans. We account for endogeneity using the instrument variable (IV) approach and the Heckman selection model and find consistent evidence that prior lending relationship is associated with higher interest costs and the effect is more severe for stronger existing relationships. Our study provides direct evidence that prior lending relationships do create a lock‐in effect under certain circumstances, such as DIP financing.  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