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   777篇
  免费   33篇
财政金融   140篇
工业经济   73篇
计划管理   164篇
经济学   156篇
运输经济   6篇
旅游经济   5篇
贸易经济   125篇
农业经济   77篇
经济概况   64篇
  2023年   5篇
  2021年   10篇
  2020年   9篇
  2019年   16篇
  2018年   24篇
  2017年   21篇
  2016年   23篇
  2015年   16篇
  2014年   28篇
  2013年   112篇
  2012年   18篇
  2011年   22篇
  2010年   23篇
  2009年   19篇
  2008年   25篇
  2007年   17篇
  2006年   32篇
  2005年   30篇
  2004年   25篇
  2003年   13篇
  2002年   17篇
  2001年   20篇
  2000年   13篇
  1999年   16篇
  1998年   18篇
  1997年   26篇
  1996年   17篇
  1995年   18篇
  1994年   13篇
  1993年   11篇
  1992年   10篇
  1991年   14篇
  1990年   12篇
  1989年   7篇
  1988年   7篇
  1987年   7篇
  1986年   4篇
  1985年   11篇
  1984年   10篇
  1983年   10篇
  1982年   8篇
  1981年   9篇
  1980年   5篇
  1979年   5篇
  1978年   3篇
  1977年   5篇
  1976年   4篇
  1975年   3篇
  1974年   4篇
  1972年   3篇
排序方式: 共有810条查询结果,搜索用时 15 毫秒
1.
ABSTRACT

The benefits of biofuels depend on the feedstock, conversion pathway and local context. This paper assesses biofuels technology readiness and developments to provide foresight to biofuels development in Southern Africa. Efficient conversion pathways, coupled with biomass from waste or high-yielding energy crops, will reduce both the costs of biofuels production, and the environmental impacts. Compared to petroleum fuels, the current commercial biofuels (ethanol, biogas and biodiesel) typically offer carbon emission reductions of 30–50% but are marginally more expensive. The extent of biofuels market penetration will therefore be influenced by mandates (blending targets) and subsidies (green premium). Advanced biofuels promise greater efficiencies and carbon emission reductions at reduced cost but will require further research and development to reach commercialisation. If developed appropriately, biofuels can reduce carbon emissions and improve energy security, while enabling sustainable agriculture and improved natural resources management.  相似文献   
2.
In this paper, we propose a new unrelated question model for estimating the prevalence of a sensitive characteristic within a population by utilizing two decks of cards. The resultant estimator is then compared to its competitors as to efficiency and as to protection of respondents. A real data application analyzing e-cigarette use among college students is considered.  相似文献   
3.
This research addressed the questions: do audit committees (AC) in Victorian local government function effectively? Qualitative and quantitative data were collected to measure the perceptions, attitudes and perspectives of mayors, chief executives and chairs of the AC. The results were compared with perceptions of committee members of the Local Government and Shires Association of New South Wales and board members of the Municipal Association of Victoria as the representative bodies of local government in New South Wales and Victoria. There was a similarity of views in relation to: (1) inputs of an AC; (2) the behavioural nuances of the rigour of debate, trust and effective communications; and (3) the relationships with councillors and management. Limitations to effectiveness included: (1) attraction and retention of members; (2) the variability of expertise and the skills of the members; (3) continuing professional development for members; (4) ‘gaming’ behaviours; (5) power games associated with the appointment process; and (6) domination of the AC by members or management. The suggested way forward is the reinforcement of a strong governance culture in local government and an effective AC providing oversight of compliance, governance, internal control and risk processes.  相似文献   
4.
Business angel networks (BANs) provide a channel of communication between private venture capital investors (business angels) and entrepreneurs seeking risk capital. Most operate locally on a not-for-profit basis with their costs underwritten by the public sector. However, the recent establishment of BANs by private sector organisations in the U.K. has led to a questioning of the government's continuing role in the financing of BANs. This paper demonstrates that there are significant differences between public sector and other not-for-profit BANs and private sector, commercially-oriented BANs in terms of the investments that they facilitate. Private sector BANs are primarily involved with larger, later stage deals whereas investments made through not-for-profit BANs are generally smaller, involve start-ups and other early stage businesses and are local. The emergence of private sector BANs has therefore not eliminated the need for public sector support for locally-oriented networks.  相似文献   
5.
In the late 1980s there was a series of sensational business scandals in the United Kingdom. There was particular public outrage at the plundering of pension funds by Robert Maxwell, at the failure of auditors to expose the impending bankruptcy of the Bank of Credit and Commerce International, and at the apparently undeserved high pay raises received by senior business executives. The City of London responded by creating a special committee to examine the financial aspects of corporate governance. This paper describes the resulting Code of Best Practice produced by the Cadbury Committee. To reduce the power of executive directors in the boardroom the Code recommends a greater role for non-executive directors, changes in board operations, and a more active role for auditors. The paper reviews the various published reactions to the Cadbury Report, and concludes that the Code is unlikely to halt the incidence of business scandals in the United Kingdom.Colin Boyd teaches at the College of Commerce, University of Saskatchewan. His study of the Zeebrugge Car Ferry Disaster is published in a number of strategy and ethics case-books. In 1993/94 he was a Visiting Research Fellow at the Centre for Applied Ethics, University of British Columbia, which provided financial support for the production of this paper.  相似文献   
6.
Using case‐study data, the article examines the contention that protective labour market policies and trade union action are responsible for growing divisions between labour market ‘insiders and outsiders’. Case studies are reported on developments in collective bargaining in the hospitals and engineering sectors from seven western and central European countries. The article finds that managerial strategies, and interactions between management and unions, have to be considered to give a full account of the growth of precarious employment.  相似文献   
7.
Economic and political transition can occur through peaceful or violent means. Violent transition disrupts the incentive for firms to make productive investments. This paper studies the determinants of profit reinvestment for firms in post‐conflict transition economies. Results indicate that while access to finance is an important determinant of reinvestment during transition, it is not as important in the post‐conflict context. However, property rights protections, in particular institutions of contract enforcement, are a more important determinant of profit reinvestment for firms operating in the post‐conflict environment than for firms in general. This indicates that obstacles to investment are context specific.  相似文献   
8.
This paper deals with the question of whether migrants pay a rent premium for apartments of comparable quality and neighborhood characteristics. We use a two-step selection-correction model augmented by a control function to account for nonrandom neighborhood choice. The estimation sample is a uniquely assembled panel comprising the Socio-Economic Panel (SOEP), information on household and apartment characteristics, as well as georeferenced data describing neighborhood quality. Our estimates reveal that people with migration backgrounds are not penalized in the German local rental market in terms of higher rental payments.  相似文献   
9.
This article provides new evidence on the effect of changes in employment protection on worker absence. We use novel multi‐organization data to examine changes in worker absence as workers move from temporary to permanent employment contracts. We demonstrate a robust positive effect of employment protection on sickness absence. It has also been suggested that the impact of employment protection on absence and effort is due to a fear of dismissal. We also provide evidence that suggests that temporary workers' absence is influenced by incentives to attain jobs with protection that is unrelated to threat of dismissal. This has not been considered in earlier research. This channel of employment protection effects has important policy implications.  相似文献   
10.
Previous research indicates that consumers differ in their evaluation of and response to similar retail experiences. Reporting results from three studies, the current research proposes consumers’ regulatory focus intensity as one possible source of this variation. Study 1 examines how consumers’ regulatory focus intensity influences their in‐store behavioral intentions following good and bad shopping experiences. Study 2 illustrates how consumers’ regulatory focus intensity impacts their future loyalty intentions after satisfactory retail experiences. In Study 3, the researchers explore how retailers can employ regulatory framing in their communication messages to increase the future loyalty intentions of those chronically less loyal consumers. Lastly, theoretical and managerial implications as well as limitations of this research are discussed.  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