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   20268篇
  免费   402篇
财政金融   3789篇
工业经济   1414篇
计划管理   4133篇
经济学   4220篇
综合类   427篇
运输经济   114篇
旅游经济   289篇
贸易经济   2710篇
农业经济   1143篇
经济概况   2401篇
信息产业经济   2篇
邮电经济   28篇
  2022年   221篇
  2021年   271篇
  2020年   289篇
  2019年   378篇
  2018年   343篇
  2017年   329篇
  2016年   308篇
  2015年   218篇
  2014年   358篇
  2013年   1820篇
  2012年   489篇
  2011年   547篇
  2010年   510篇
  2009年   728篇
  2008年   599篇
  2007年   598篇
  2006年   534篇
  2005年   440篇
  2004年   468篇
  2003年   530篇
  2002年   396篇
  2001年   400篇
  2000年   409篇
  1999年   397篇
  1998年   336篇
  1997年   338篇
  1996年   312篇
  1995年   297篇
  1994年   299篇
  1993年   387篇
  1992年   294篇
  1991年   313篇
  1990年   288篇
  1989年   269篇
  1988年   254篇
  1987年   244篇
  1986年   254篇
  1985年   328篇
  1984年   346篇
  1983年   347篇
  1982年   297篇
  1981年   288篇
  1980年   281篇
  1979年   255篇
  1978年   228篇
  1977年   212篇
  1976年   206篇
  1975年   189篇
  1974年   162篇
  1973年   133篇
排序方式: 共有10000条查询结果,搜索用时 156 毫秒
61.
Many wildlife tourist attractions (WTAs) have negative impacts on animal welfare and species conservation. In the absence of regulation, raising standards requires tourists to create market pressure by choosing to attend WTAs with benefits for wildlife. We surveyed respondents from five countries – China, Australia, Canada, UK, and USA – to quantify how attitudes to captive animals, and towards WTAs’ outputs and standards, may vary with nationality. Our aim was to provide a firm basis for behaviour change interventions to alter current patterns of tourist consumption of WTAs. All respondents agreed on the importance of conservation and animal welfare, but Chinese respondents were twice as likely to believe that WTAs would not be allowed to exist if they were bad for animals, and that WTAs’ promotional materials were reliable indicators of welfare and conservation standards. These findings indicate Chinese respondents had fundamentally similar attitudes to those from the other countries, but differed in how those attitudes were likely to be applied. Chinese tourists may experience more barriers to aligning their actions with their values with respect to WTAs. Removing these barriers may require information campaigns to highlight the lack of regulation, and the unreliability of some WTAs’ promotional materials and tourists’ reviews.  相似文献   
62.
We extend the entrepreneurship literature to include positive psychological capital — an individual or organization's level of psychological resources consisting of hope, optimism, resilience, and confidence — as a salient signal in crowdfunding. We draw from the costless signaling literature to argue that positive psychological capital language usage enhances crowdfunding performance. We examine 1726 crowdfunding campaigns from Kickstarter, finding that entrepreneurs conveying positive psychological capital experience superior fundraising performance. Human capital moderates this relationship while social capital does not, suggesting that costly signals may, at times, enhance the influence of costless signals. Post hoc analyses suggest findings generalize across crowdfunding types, but not to IPOs.  相似文献   
63.
Differences in accrued gains and investors’ tax-sensitivity induce variation in a capital gains lock-in effect across mutual funds even for the same stock at the same time. Exploiting this variation, we show this effect influences funds’ governance decisions: higher capital gains decrease the likelihood a fund exits prior to contentious votes and increase the likelihood a fund votes against management. Consistent with tax motivation, these findings are concentrated among funds with tax-sensitive investors. Further, high aggregate capital gains across funds holding a stock predict a higher likelihood management loses a vote and a lower likelihood a contentious vote is proposed.  相似文献   
64.
Quality & Quantity - Mono-centric regions have experienced a progressive transformation towards polycentric structures. Transition to discontinuous and dispersed spatial configurations was...  相似文献   
65.
Strong digital developments are changing markets, and firms may adopt a digital business model to deal with these developments. This special issue focuses on such digital business models. In this editorial, we discuss the relevance of digital business models, propose a conceptual framework, and discuss how digital business models affect firms, firm performance, and markets. We introduce the papers in this issue and show how they each fit within the conceptual framework. We discuss four important areas for future research.  相似文献   
66.
Review of Quantitative Finance and Accounting - We investigate the relation between managers’ personal ideologies and financial reporting quality. We use Federal Elections Commission data to...  相似文献   
67.
This study investigates how psychological characteristics influence saving behavior within a sample of 1,380 U.S. preretirees aged 50–70 from the Health and Retirement Study (HRS). Using the 3M Model of Motivation and Personality as a theoretical basis, structural equation model results revealed that financial self‐efficacy (FSE) directly explains saving behavior and is central to understanding the link between other psychological characteristics and the saving behavior of older adults. Through higher FSE, increased positive affect and reduced negative affect indirectly supported saving behavior. Moreover, the results revealed personality traits indirectly explained saving behavior. Conscientiousness and extroversion indirectly supported saving behavior; whereas openness to experience and neuroticism indirectly undermined saving behavior. This study connects broad personality traits with saving behavior, which provides information about how older adults' psychological composition is related to their saving practices.  相似文献   
68.
This study addresses a call for the design and implementation of course curricula that prepare students to develop their CQ and gain experience working with peers on global virtual project teams. We explored how US-based and Peru-based students’ cultural intelligence (CQ) impacted their sense of psychological safety (PS) during a month-long global, virtual team project. We also examined the students’ people-focused (PF) and task-focused (TF) behaviors as mediators of the CQ-PS relationship. The results of mediation analyses provide support for our hypothesis that the relationship between cultural intelligence and psychological safety will be mediated by people-focused behaviors. Finally, we provide a model and suggestions for virtually bringing together students from different countries to collaborate on a global virtual project, and avenues for future research. Here we encourage a focus on a curriculum that educates students about their cultural intelligence and ways to develop psychologically safe learning environments. We also highlight the potential learning for faculty teaching such courses, and note how our experience collaborating with our counterpart in Peru constituted a fractal of what our students were experiencing on their global projects.  相似文献   
69.
Review of Quantitative Finance and Accounting - We examine how changes in dividend policy in 2008 as the financial crisis was unfolding influenced firm risk-adjusted returns in the following years....  相似文献   
70.
Flash sale (FS) is a new business model that offers discounted products in limited numbers over a short period. In this paper we discuss the impact of strategic consumers on advance selling (AS) of new products on FS platforms. We first study the impact of strategic consumers on competing retailers adopting AS to sell a homogeneous new product. And find that the retailers’ AS profits and inventory quantities decrease with the strategic customers’ valuation and valuation decreasing rate. Then we analyse whether FS can mitigate the impact of strategic customers on retailers adopting AS for new products. We consider a newsvendor model involving only one retailer adopting AS to sell a new product. We derive the results by comparing this model with two counterpart models, namely the classical newsvendor model with no strategic customers and a newsvendor model with strategic customers where the retailer does not use FS under AS.  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