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   58篇
  免费   4篇
财政金融   18篇
工业经济   5篇
计划管理   11篇
经济学   10篇
旅游经济   4篇
贸易经济   13篇
经济概况   1篇
  2022年   1篇
  2021年   3篇
  2019年   3篇
  2018年   4篇
  2017年   1篇
  2016年   3篇
  2015年   2篇
  2014年   4篇
  2013年   11篇
  2012年   2篇
  2011年   2篇
  2010年   2篇
  2009年   3篇
  2008年   4篇
  2007年   2篇
  2006年   6篇
  2005年   3篇
  2004年   1篇
  2001年   2篇
  2000年   1篇
  1995年   1篇
  1975年   1篇
排序方式: 共有62条查询结果,搜索用时 31 毫秒
51.
Innovation theory asserts that the adoption of new leisure activities in later life (leisure innovation) may facilitate healthy ageing through personal growth, interest renewal, identity reconstruction and increased sense of meaning in life. The purpose of this study was to explore innovation theory among retirement-age women. Thirteen women aged 60–70 completed in-depth interviews and focus groups. Data were analysed through open, axial and selective coding. Themes emerged regarding the nature of newly adopted leisure activities, triggers of innovation and outcomes of innovation. Participants attributed meaning to innovation within established interest areas and to innovation related to taking advantage of previously unavailable opportunities. Participants also identified innovation catalysts including additional resources, increased perceived freedom, purposive life changes and health concerns. Outcomes of innovation included feelings of joy, self-confidence, independence and improved social connections. Findings support and extend innovation theory and suggest that acknowledging and exploring the adoption of new leisure activities can extend existing theory and improve future research related to leisure and ageing.  相似文献   
52.
53.
Quality & Quantity - Many public opinion surveys compare trust in a number of different information and (mediated) knowledge sources, typically using closed questions with a set of answer...  相似文献   
54.
The paper discusses foresight as a dynamic strategic practice and theorises the connections of foresight and strategic management. The paper argues that organisations have a rising need to foster relevant future-oriented knowledge in a continuous process that builds on the systemic understanding of the operational environment. For this purpose, the paper outlines a conceptual framework for continuous organisational foresight practice. The framework is based on two conceptual bedrocks. The first is the idea of continuity, referring to the long-term accumulation of organisational practices. The second bedrock is the notion of discontinuity as an organisational transformation factor. Furthermore, the framework builds on the notion of four knowledge spaces in an organisation, and it is constructed through six layers depicted in detail. The paper demonstrates this framework through a case study of a Finnish research and technology organisation, VTT Technical Research Centre of Finland.  相似文献   
55.
Tobin's q is widely accepted as a proxy for an underlying "true" q, which is assumed to characterize a firm's incentive to invest. Researchers have developed numerous methods for computing q. This article assesses the measurement quality of different proxies for q. We adapt the measurement-error consistent estimators in Erickson and Whited (2002) to estimate the extent to which variation in true unobservable q explains variation in different proxies for q. We find most proxies for q are poor: careful algorithms for calculating q do little to improve measurement quality. Using elaborate algorithms, however, depletes the number of usable observations and possibly introduces sample selection bias.  相似文献   
56.
We develop a Q theory of investment under financing constraints. The firm invests and saves optimally facing convex costs of external equity, overhang from outstanding debt, and collateral constraints on new borrowing. Overhang and costs of external equity discourage investment. Conversely, firms anticipating collateral constraints experience a side benefit from investing as installed capital relaxes future constraints. Empirical tests support the model. Conditional on average Q, investment is lower for equity issuers and for firms with large debt overhang. The Kaplan and Zingales and the Whited and Wu indices are used as proxies for future collateral constraints. Consistent with the model, both indices enter investment regressions positively.  相似文献   
57.
We examine whether spin-offs or divestitures cause improvementsin conglomerate investment efficiency. At issue are endogeneityof these restructuring decisions and correct measurement ofinvestment efficiency. Endogeneity is a problem because thefactors that induce firms to spin off or divest divisions mayalso improve investment efficiency; measurement error is a problembecause efficiency measures employ Tobin’s q as a noisyproxy for investment opportunities. We find important differencesbetween firms that divest or spin off and a control sample.After accounting for these differences and for measurement errorin q, we find no evidence of improvements in investment efficiency.(JEL G31, G34)  相似文献   
58.
When projects fail to adequately meet requirements, organizations are forced to either abandon the project or to initiate a new project to address the original project requirements. Because the organization already has experience with and exposure to many project details, it is possible that the second attempt to address the original requirements (a rework project) will create different challenges for the project team. The purpose of this study was to examine risk indicators for rework projects and to determine whether or not risk indicators were the same or different for rework projects. A risk indicator is a factor that has predictive power about the likelihood of a risk occurring in the course of a project's life cycle. The projects studied for this research were undertaken by a large engineering design organization. The results show that there are some important differences in the types of risk indicators experienced by project managers and project teams in rework projects. Specifically, the risks associated with project urgency, quality, and technological changes were more common in rework projects. By understanding and attending to these differences in rework project risks, project managers will be better equipped to successfully guide rework projects to completion.  相似文献   
59.
Neutral carbon tax and environmental targets in Brazil   总被引:1,自引:0,他引:1  
We evaluate the effects of a carbon tax in the Brazilian economy using an input–output framework. First, we consider the impacts of a carbon tax of US$ 10 and US$ 50/metric ton of CO2 equivalent. As usual, the adoption of the carbon tax generates adverse effects on GDP, wages and jobs in the short term, but reduces emissions and generates new government revenues, especially in the case of the greater tax. Second, we consider a broader tax system reform. In this reform, we replace distortionary taxes by a tax on value added. To compensate for the loss of government revenue, we assume a carbon tax with equivalent revenue. We find that the net effect is a GDP increase of 0.47%, the creation of 533 thousand jobs and reduction of 1.6 million tons of CO2 emissions. Both scenarios exempt exports and levy imports to correct adverse effects on the country’s competitiveness.  相似文献   
60.
This paper studies the impact of Mobile Financial Systems’ usage on microcredit delinquency ratios in Tunisia by using either a two-part model or matching econometric procedures. Our large dataset contains all of the administrative registers that belong to the six branches of Enda, the incumbent Institution leader in Tunisia. We find a significant reduction of 4.92 days of late repayment for an average user of MFS in an environment where 15% of loans have been paid late at least once. We foresee a tremendous opportunity to improve the MFIs’ repayment ratios and, consequently, provide microcredit customers with more financing for income generating activities.  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