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   387篇
  免费   15篇
财政金融   112篇
工业经济   47篇
计划管理   68篇
经济学   47篇
综合类   5篇
运输经济   5篇
旅游经济   24篇
贸易经济   62篇
农业经济   16篇
经济概况   16篇
  2023年   1篇
  2022年   1篇
  2020年   2篇
  2019年   6篇
  2018年   7篇
  2017年   14篇
  2016年   10篇
  2015年   6篇
  2014年   8篇
  2013年   46篇
  2012年   23篇
  2011年   14篇
  2010年   17篇
  2009年   17篇
  2008年   10篇
  2007年   20篇
  2006年   21篇
  2005年   13篇
  2004年   14篇
  2003年   7篇
  2002年   7篇
  2001年   12篇
  2000年   10篇
  1999年   12篇
  1998年   7篇
  1997年   6篇
  1996年   4篇
  1995年   7篇
  1994年   4篇
  1993年   6篇
  1992年   2篇
  1991年   4篇
  1990年   4篇
  1989年   1篇
  1988年   4篇
  1987年   2篇
  1986年   6篇
  1985年   6篇
  1984年   12篇
  1983年   8篇
  1982年   11篇
  1981年   3篇
  1980年   3篇
  1978年   1篇
  1976年   1篇
  1974年   2篇
排序方式: 共有402条查询结果,搜索用时 15 毫秒
11.
This article develops a dynamic model to investigate renewable resource markets under different property rights. We find that different property rights regimes in renewable resource markets yield very different equilibria. Under private property rights, the valve point increases with the natural growth rate, productivity, number of firms, and marginal costs. Under common property rights, “the tragedy of the commons” inescapably occurs. This study suggests how to avoid ecological disaster by implementing a set of public policies.  相似文献   
12.
We investigate whether tax avoidance substitutes for external financing. We exploit interstate banking deregulation as a quasi-external shock to examine whether...  相似文献   
13.
14.
Creativity is acknowledged to be important for economic growth and as an everyday life-skill, however several influential reports have suggested that education could do more to harness creative talent. Creative cognition literature suggests the lack of creativity is at least partly the result of ‘fixation’ (difficulty in generating novel ideas due to imagination being ‘structured’ by existing knowledge). This paper focuses on the secondary (students aged 11–16 years) design and technology (D&T) context in the UK. Here we examine whether teacher practice can contribute to fixation by focusing on one specific facet of teacher practice in D&T; the use of product analysis to inform the generation of creative design ideas. Data is drawn from the preliminary phase of a research and intervention project from interviews with D&T teachers (N = 14), students (N = 126) and lesson observations (N = 10) and an analysis of documents and student work. Product analysis is widely used at different points in design projects but, as is shown, in all cases current practice can lead to fixation, as thinking is constrained down specific paths and tasks are at best at procedural rather than comprehension level. The implications of these findings and tentative ways forward for practitioners are discussed.  相似文献   
15.
Answering the call for alternative approaches to researching project management, we explore the evaluation of project success from a subjectivist perspective. An in‐depth, longitudinal case study of information systems development in a large manufacturing company was used to investigate how various project stakeholders subjectively perceived the project outcome and what evaluation criteria they drew on in doing so. A conceptual framework is developed for understanding and analyzing evaluations of project success, both formal and informal. The framework highlights how different stakeholder perspectives influence the perceived outcome(s) of a project, and how project evaluations may differ between stakeholders and across time.  相似文献   
16.
17.
We show that the asymmetric effects of income taxes and special items for profit and loss firms contribute to a discontinuity at zero in the distribution of earnings. Income taxes draw profit observations towards zero while negative special items pull loss observations away from zero. These earnings components are thus expected to contribute to a discontinuity even in the absence of discretion. We show our results are not an artifact of deflation and that other common components of earnings do not have similar effects on the earnings distribution around zero.
Karen K. NelsonEmail:
  相似文献   
18.
We exploit the information derived from geographical coordinates to endogenously identify spatial regimes in technologies that are the result of a variety of complex, dynamic interactions among site-specific environmental variables and farmer decision making about technology, which are often not observed at the farm level. Controlling for unobserved heterogeneity is a fundamental challenge in empirical research, as failing to do so can produce model misspecification and preclude causal inference. In this article, we adopt a two-step procedure to deal with unobserved spatial heterogeneity, while accounting for spatial dependence in a cross-sectional setting. The first step of the procedure takes explicitly unobserved spatial heterogeneity into account to endogenously identify subsets of farms that follow a similar local production econometric model, i.e. spatial production regimes. The second step consists in the specification of a spatial autoregressive model with autoregressive disturbances and spatial regimes. The method is applied to two regional samples of olive growing farms in Italy. The main finding is that the identification of spatial regimes can help drawing a more detailed picture of the production environment and provide more accurate information to guide extension services and policy makers.  相似文献   
19.
20.
Abstract

This paper investigates strategic and organisational context determinants of the sophistication of adopted sales force automation (SFA) systems in three UK industries: financial services, pharmaceuticals, and building/construction. Sophistication of adopted systems is associated with the organisation placing greater emphasis on information orientation, which is itself driven by an increased integration of IT and sales coupled with increased organisational slack. Increased integration of IT and sales is itself driven by increased strategic importance of sales coupled with increased use of internal communication networks. Importantly, a firm's marketing orientation, although also driven by the strategic importance of sales, has no impact on either information orientation or SFA sophistication. We discuss the implications of our findings to aid understanding of SFA implementation failure.  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