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   2704篇
  免费   67篇
  国内免费   2篇
财政金融   640篇
工业经济   140篇
计划管理   530篇
经济学   584篇
综合类   212篇
运输经济   29篇
旅游经济   69篇
贸易经济   346篇
农业经济   51篇
经济概况   172篇
  2024年   1篇
  2023年   54篇
  2022年   66篇
  2021年   97篇
  2020年   140篇
  2019年   76篇
  2018年   61篇
  2017年   68篇
  2016年   80篇
  2015年   62篇
  2014年   126篇
  2013年   161篇
  2012年   127篇
  2011年   223篇
  2010年   140篇
  2009年   174篇
  2008年   216篇
  2007年   186篇
  2006年   186篇
  2005年   118篇
  2004年   103篇
  2003年   78篇
  2002年   59篇
  2001年   33篇
  2000年   26篇
  1999年   26篇
  1998年   21篇
  1997年   15篇
  1996年   11篇
  1995年   1篇
  1994年   2篇
  1993年   7篇
  1992年   4篇
  1991年   1篇
  1989年   1篇
  1988年   2篇
  1986年   2篇
  1985年   3篇
  1984年   4篇
  1983年   9篇
  1982年   3篇
排序方式: 共有2773条查询结果,搜索用时 15 毫秒
1.
Social media emerged as a primary source of information among young users, but its severe effect on mental state due to information overload, still an area of concern for the researchers. Generation Z users' addiction to the mobile phone/gadgets is increasing with a rise in social media and consequently their behavioral outcomes have transformed completely. Nowadays behavioral issues including stress, fatigue, ‘fear of missing out’ and ‘phubbing’, anxiety etc. rising each day but the relationship among these issues and information overload is less examined. The social media users are unable to filter the trustworthy information due to its enormous size and thus role of information support from government becomes essential. The current study extends the S-O-R theory exploring relationship between the stimulus of enormous information on the responses generated among the Generation Z such as social media fatigue, ‘fear of missing out’, ‘phubbing’ and anxiety. The findings from a sample of 319 users belonging to Generation Z suggest that social media platforms need to understand user's compulsive usage that is resulting into fatigue and consequently anxiety. The role of government information support on reducing fatigue and anxiety is found to be positive. The relationship between ‘fear of missing out’, ‘phubbing’ and anxiety is found significant and shows presence of partial mediation. The study offers significant theoretical and practical implications. It is significant for the service providers and social media platforms to advance interfaces with minimum fatigue for the users and offers information support to the users to reduce stress caused by information load.  相似文献   
2.
Drawing on the information system success model and perceived value theory, we develop a research model to examine factors that may affect user satisfaction and loyalty of mobile payment platforms. Empirical data was collected from users using Alipay and WeChat Pay in China, and a total of 410 valid responses were gathered for data analysis. The results show that the multi-dimensional formative perceived value including benefits and sacrifice is important determinant of mobile payment user satisfaction and loyalty. The three benefit dimensions of functional value, experiential value and social value are more important value components than the two sacrifice dimensions of risk and cost, and experiential value is the dominant component of mobile payment users' value perception. As for the antecedents of perceived value, system quality and service quality mainly affect perceived benefits, while information quality has a greater impact on risk. The research results provide the contribution of specific value dimensions to users' perceived value and the impact of quality characteristics on specific perceived value for mobile payment platform providers, thus helping them to adopt effective strategies to strengthen market competitiveness and retain existing users.  相似文献   
3.
Thanks to the expansion of network technologies and the coupling of smartphone hardware, younger generations have unparalleled access to a diverse range of information and interactive communication opportunities. Despite voluminous research on the causes of social network exhaustion and privacy invasion, limited academic attention has been devoted to understanding the driving forces and contributing factors for discontinuing usage of smartphone app. Drawing on the cognition-affect-conation paradigm, the present research proposes a conceptual research model to examine how information overload and communication overload effect social network exhaustion, privacy invasion, and ultimately, smartphone app users' intentions to discontinue usage. The study evaluates data from 442 smartphone app users, employing statistical analyses to demonstrate that both information overload and communication overload significantly impact users' exhaustion and privacy invasion. Additionally, social network exhaustion and privacy invasion are two major predictors of smartphone app discontinuance intention. By identifying the influential factors and causes of younger generations' discontinuous usage intention of smartphone app, this study meets the need for a thorough assessment of the social network exhaustion and privacy invasion phenomena. The findings may potentially enhance comprehension of the discontinuation intention phenomenon in the context of cognitive overload. Furthermore, they may provide novel insights for practitioners regarding effective strategies conducive to managing mobile social network adoption behavior, as well as the preservation of engagement levels among young users in mobile-saturated societies.  相似文献   
4.
This research investigates what impact of uncertainty perception arising from the existence of competition has on the pricing decision for Product-Service Systems (PSS) under uncertainty. PSS provision is an increasingly important area for many businesses and competition increases cognitive pressures on providers even further. We present an experimental study with industrial costing and bidding experts from the defence and aerospace sector. The study consisted of an experimental set-up via two questionnaires which differed in the existence of competition in the bidding scenario. The findings showed that bidding decision makers changed their evaluation of the cost estimate due to the introduction of competition but kept their evaluations of the profit margin and price bids constant. Furthermore, the participants listed the relevant sources of uncertainty that influenced their decision-making process. This research contributes to the literature in two ways. First, our findings showed that predictions from current theory regarding decision-making of cost estimation and pricing are not confirmed when competitively bidding for PSS. Second, we show uncertainty sources that influenced the decision makers and identified p the importance of internal processes of the PSS provider and environmental uncertainty.  相似文献   
5.
谢小剑 《当代金融研究》2018,2018(4):149-160
指定监视居住是一种以强制措施满足侦查需要的特殊制度,具有重要的学术史意义,其发展经验对于公安机关指定监视居住的完善,对于监察留置程序的完善都具有重要意义。对全国1694份判决书的研究表明,职务犯罪指定居所监视居住数量呈“山峰”形状,在2014年下半年达到顶峰之后迅速减少,办案级别主要为基层检察院,省际区域性差别较大,适用指定监视居住的案件主要为行贿受贿案件,适用理由主要为本地无固定住所以及办案需要,有五成多的嫌疑人被指定监视居住15天内,指定监视居住平均长达23.63天。其存在的问题是,指定监视居住未发挥替代逮捕的功能,一些案件指定监视居住时间过长,且存在非法指定监视居住、非法讯问的问题。可见,最高人民检察院控制指定监视居住适用案件范围的意图得到了充分的体现,需要确立针对贿赂犯罪的特殊程序,对于满足办案需要的人身自由限制手段应当严格规范其时间限度、讯问程序。  相似文献   
6.
家族企业对社会情感财富目标的追求是其区别于非家族企业的重要特性,社会情感财富目标与企业经济利益间冲突对企业R&D投入的影响不容忽视。以社会情感财富为理论基础,基于573家上市家族企业2011-2015年的面板数据,分析受市场化程度影响时,家族涉入情境下信息透明度对企业R&D投入的影响。结果显示:信息透明度可以有效缓解信息不对称和代理冲突,促进企业R&D投入;家族控制对R&D投入有消极影响;当企业信息透明度较高时,会抑制家族所有者为个人谋取私利的动机,进而增强其对企业R&D投资的积极作用。在市场化程度更高、产权保护力度较大的地区,信息透明度会缓解家族控制权对R&D投入的消极作用。  相似文献   
7.
Abstract

In the pharmaceutical industry, a reverse payment (pay-for-delay) is a payment from an originator to a generic producer to delay her entry. In some recent cases, the US and EU antitrust authorities have banned these agreements per se, while in others they have used a rule of reason. This paper analyzes their dynamic effects and shows that a ban per se may reduce consumer surplus when the generic producer may go bankrupt and her financial situation is private information. Reverse payments are more beneficial when competition among few players is soft, the economy is in a downturn, and the period of drug usage after patent expiry is long. Results suggest that a rule of reason is more suited than a ban per se.  相似文献   
8.
Using comprehensive data from Denmark, we study private investors’ preferences for domestic stocks. We compare the equity home bias of foreigners recently relocated to Denmark to the equity home bias of other investors. We find that home bias of recently relocated foreigners is lower than home bias of other investors. Our main result is that when relocated foreigners’ duration of stay increases, their home bias also increases. After 7–8 years, home bias of relocated foreigners does not differ from home bias of other investors. Our results imply that familiarity with domestic stocks develops dynamically with the length of stay in a given country. We discuss implications for explanations of the home-bias puzzle building on information asymmetries.  相似文献   
9.
利用2012-2016年我国中小板企业数据,实证研究了不同类型企业社会责任信息披露质量对创新持续性的影响路径。结果显示,对股东、员工的责任信息披露质量能显著缓解融资约束,从而正向影响企业创新持续性;对供应商、客户、消费者、社会和环境的责任信息披露质量只能部分缓解融资约束,但仍正向促进企业创新持续性;国有性质的中小板企业对社会责任信息披露质量更加敏感。以上结论说明,我国中小板企业应注重履行并披露对不同利益相关者的社会责任信息,这对于企业缓解融资约束、维持创新持续性具有积极作用。  相似文献   
10.
苏冬蔚  彭松林 《金融研究》2019,471(9):188-207
本文研究上市公司内部人减持、年报、诉讼、分析师评级、停复牌以及高送转等重大公告前后卖空交易行为的变化,系统考察卖空者是否参与内幕交易以及何种因素影响卖空者参与内幕交易,发现卖空率较高的股票具有较低的未来收益,表明卖空者拥有信息优势,属知情交易者;卖空者拥有非常精确的择时交易能力,在重大利空公告前显著增加卖空量,而在利好公告前则显著减少卖空头寸,表明卖空者作为知情交易者的信息优势源自内幕消息;公司内、外部投资者的信息不对称程度越低或公司所在地的法治水平越高,卖空者参与内幕交易的行为就越少。因此,监管机构应密切关注公司重大消息发布前后卖空量的异常变动,同时,完善信息披露规则、健全证券分析师制度并强化法律法规的执行力度,才能有效防范卖空者参与内幕交易。  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