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   5624篇
  免费   117篇
  国内免费   44篇
财政金融   607篇
工业经济   349篇
计划管理   844篇
经济学   890篇
综合类   488篇
运输经济   24篇
旅游经济   22篇
贸易经济   457篇
农业经济   294篇
经济概况   757篇
水利工程   1041篇
信息产业经济   1篇
邮电经济   11篇
  2024年   10篇
  2023年   45篇
  2022年   110篇
  2021年   147篇
  2020年   147篇
  2019年   101篇
  2018年   75篇
  2017年   120篇
  2016年   118篇
  2015年   142篇
  2014年   174篇
  2013年   229篇
  2012年   398篇
  2011年   575篇
  2010年   535篇
  2009年   401篇
  2008年   464篇
  2007年   415篇
  2006年   424篇
  2005年   378篇
  2004年   122篇
  2003年   122篇
  2002年   119篇
  2001年   86篇
  2000年   60篇
  1999年   64篇
  1998年   39篇
  1997年   43篇
  1996年   30篇
  1995年   24篇
  1994年   18篇
  1993年   16篇
  1992年   15篇
  1991年   7篇
  1990年   5篇
  1989年   4篇
  1988年   1篇
  1984年   2篇
排序方式: 共有5785条查询结果,搜索用时 15 毫秒
161.
We empirically examine whether adopting a uniform set of accounting standards mitigates information frictions in financial markets and facilitates market integration. Using a difference‐in‐difference design, we find that after the mandatory adoption of IFRS local stock returns incorporate more global information and at a faster speed. The effect of IFRS adoption is stronger in countries where there are larger improvements in accounting comparability and for firms with a larger increase in foreign ownership. Overall, our results suggest that accounting standards harmonization facilitates financial market integration.  相似文献   
162.
Zhu  Xiwei  Liu  Ye  He  Ming  Luo  Deming  Wu  Yiyun 《Small Business Economics》2019,52(3):595-616
Small Business Economics - This article studies the synergy effect of entrepreneurship on China’s industrial cluster. We propose an extension to Duranton and Overman’s (The Review of...  相似文献   
163.
164.
城市生命线系统出现问题,可能造成整个城市瘫痪,易引发社会危机,是城市公共安全的重要领域.根据城市生命线系统承载的物质及能量的特性、脆弱性和可能引发的连锁效应,分析和评估城市生命线系统危机特征和种类,得到具体的危机源;分析和总结我国城市生命线系统危机管理现状和控制效果,发现其存在的主要问题,进而提出改进我国城市生命线系统危机管理的对策措施建议.  相似文献   
165.
This study examines financial analyst coverage for U.S. firms following an increase in foreign product market competition. To capture exogenous shocks to domestic firms' competitive environments, we exploit a quasi‐natural experiment from large import tariff reductions over the 1984 to 2005 period in the manufacturing sector. Using data for the years before and after large tariff reductions, our difference‐in‐differences analysis shows evidence of a significant decrease in analyst coverage for incumbent U.S. firms when they face greater entry threat from foreign competitors. We also find that analysts with less firm‐specific experience and less accurate prior‐period forecasts are more likely to stop following the domestic firm when foreign competition intensifies. Overall, the findings suggest that foreign product market competition from global trade liberalization is an important determinant of financial analysts' coverage decisions.  相似文献   
166.
In the face of state-led land grabs, enterprising Chinese peasants have started a revolution in the ambiguous and insecure rural tenure system by developing an extralegal property system known as the small property right (SPR). Using the SPR, peasants are able to capitalize on their property through the sale of houses built on collectively owned land. Little is known, however, about the specific process behind the development of the SPR by the peasants, or how this extralegal property system functions in terms of securing the use and transfer of property without the backing of law. This article aims to clarify the situation through the lenses of the Endogenous Nature of Institutions and Relational Contract Theory, aiming to understand the socially constructed, endogenous and relational nature of the property rights that make SPR functional. Based on an ethnographic investigation of Beijing's largest SPR housing settlement, we show how enterprising peasants develop long-term relational contracts with urban households for the provision of housing services, secured on the basis of the common interests and symbiosis of the two parties and a reputation system that serves to deter defaults. The discretionary treatment of SPR housing by local states serves as a further motivation for the village and the informal homeowners to preserve a stable property arrangement, with such a specific institutional setting being an exemplar of China's pragmatic state entrepreneurialism.  相似文献   
167.
There have been a number of previous studies that examined the effects of yield- or revenue-based crop insurance products on input use of farmers. However, no study has specifically investigated the input use impacts of a cost-of-production (COP) crop insurance policy, even though this type of crop insurance is the predominant one used in several other countries outside of the United States (such as the Philippines and China). This article aims to theoretically and empirically examine the effect of a COP crop insurance product on farmers’ chemical input use. Our theoretical model suggests that the effect of COP insurance on input use can either be positive or negative, with the resulting impact depending on the strengths of (a) the traditional moral hazard effect of insurance (i.e., an input use decreasing effect); versus (b) the marginal incentives to apply more inputs due to input levels being the main determinant for expected indemnity amounts in this type of insurance (i.e., an input use increasing effect). A survey data set from corn farmers in the Philippines is then used to empirically illustrate how a particular COP insurance product influences input use in a real-life context. In this case, we find that COP insurance increases the use of chemical inputs (e.g., fertilizers and total chemical expenditure), implying that the positive marginal incentive to apply more inputs dominates the negative moral hazard effect.  相似文献   
168.
通过对牛肉酱、红油2种即食油脂类调味品进行微生物检测,将不同比例的吐温80添加到样品前处理的稀释液中,采用浓度为107 CFU·mL-1的标准菌悬液,用常规细菌培养法检测结果。结果表明:选用比例为5%的吐温80对牛肉酱、红油的微生物指标进行检测,检测结果均在107 CFU·mL-1,与空白对照的检测结果在同一数量级上。与常规的稀释液相比,吐温80可使样品均匀分散在稀释液中,且不影响微生物的检测结果,可适用于高油脂类样品的日常微生物检测。  相似文献   
169.
Wen He  Ki Hoon Hong  Eliza Wu 《Abacus》2020,56(4):535-560
We investigate whether investor sentiment affects the relationships between accounting variables and contemporaneous stock returns. Using price-relevant accounting variables identified by Chen and Zhang (2007) and the investor sentiment index constructed by Baker and Wurgler (2006), we find that the value relevance of accounting variables is collectively lower in high sentiment periods than in low sentiment periods. More importantly, earnings yield appears to be more related to contemporaneous stock returns in high sentiment periods, while other accounting variables are more related to stock returns in low sentiment periods. The effect of investor sentiment on the value relevance of accounting information is stronger for firms that are more difficult to value and to arbitrage.  相似文献   
170.
何怡沁 《改革与战略》2014,(10):125-128
文章从非受益群体对于经适政策公平性的质疑角度入手,挖掘出导致社会普遍不公平感的更深层次原因,着重体现公民的情感接受,并借助经济学理论,尝试重新定义社会保障公平性原则,以社会保障均等化概念代替社会公平概念来解释经适房政策,从而推进政府角色的进一步转变。  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