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1.
Richard Nehring Charles Barnard David Banker Vince Breneman 《American journal of agricultural economics》2006,88(4):930-946
This article determines the relative technical efficiency of rural- and urban-influenced crop/livestock enterprises in the Corn Belt. Farmers in urban-influenced locations are less technically efficient than farmers in rural locations. During 1998–2000, stochastic production frontier procedures indicate that a 10% increase in urban influence leads to a close to 4% decrease in technical efficiency. The most successful urban-influenced farms have controlled costs as effectively as rural farms. They have tended to de-emphasize that nondairy livestock activities—particularly beef and hogs—do not rely extensively on off-farm income, and have relatively large, less residential/lifestyle operations compared to less successful urban-influenced farmers. However, our statistical analysis clearly bears out the refrain in popular literature that urban proximity raises the cost for, and decreases the viability of, traditional farms. 相似文献
2.
Taking the case study of a community based protest against the closure of a swimming pool in Glasgow, this paper seeks to raise important critical questions about some of the key ideas informing New Labour's urban policy agenda: social capital and active community. It argues that normative notions of active citizenship seriously conflict with bottom-up community protests, highlighting in the process issues of power and inequality. Against claims that New Labour is promoting government through community, here we claim that in the context of this community protest, there was government against community. 相似文献
3.
Recent approaches to sustainable development leave much room for policies at a local level. In fact, it is becoming evident that targets such as increasing resource productivity, preserving natural cycles, or extending the present level of welfare, are best pursued within the confines of a local area. In particular, environmental changes are best brought about by considering local systems of firms as cornerstones of cooperative strategies and using data on materials and energy use in physical terms. In this paper, an enterprise input–output model is developed for an industrial district, i.e. a local group of firms specialized in the production of a single final output. The model allows for a detailed quantitative analysis of materials and energy flows and the consequent generation of waste and pollution. As a planning tool, the model may be used to evaluate alternative scenarios, such as the possibility of re- using waste taking account of sustainability requirements. An empirical case study applies the model to an industrial district in Southern Italy producing leather sofas. 相似文献
4.
贺东伟 《西安财经学院学报》2007,20(1):60-64
中国经济增长的长期机制问题一直以来都是理论界研究的热点问题。文章通过对1953—2004年与经济增长相关因素的统计数据的回归分析,并结合其他学者的研究成果,认为支撑我国经济增长的长期动力主要来自于要素投入,而要素投入的效果却与经济发展战略制定的一些非经济因素有关。 相似文献
5.
We propose estimation of a stochastic production frontier model within a Bayesian framework to obtain the posterior distribution of single-input-oriented technical efficiency at the firm level. All computations are carried out using Markov chain Monte Carlo methods. The approach is illustrated by applying it to production data obtained from a survey of Ukrainian collective farms. We show that looking at the changes in single-input-oriented technical efficiency in addition to the changes in output-oriented technical efficiency improves the understanding of the dynamics of technical efficiency over the first years of transition in the former Soviet Union. 相似文献
6.
如何有效地提高学生口语能力是大学英语教学中重要课题。本实验以非英语专业学生为研究对象,在有限的课堂教学时间内通过加大口语语言素材的输入,提高学生的口语交际能力,以寻求一种有效的教学模式。 相似文献
7.
基于哈肯模型的高技术产业化过程机制研究 总被引:1,自引:0,他引:1
运用自组织理论和方法,在哈肯模型的基础上建立了高技术产业化过程的演化方程,并以北京、天津、上海、河北等29个省市为样本进行了定量化的实证研究。结果表明,研究开发投入强度是高技术产业化过程中的序参量,从而得出要依靠研究开发投入与高科技成果转化的协同作用促进高技术产业快速发展这一结论。 相似文献
8.
9.
马仪亮 《贵州财经学院学报》2007,(4):69-72
将投入产出方法与解释结构建模相结合,取长补短,提出了基于这两种方法相结合的产业关联层次识别的分析方法,并呈现了该方法的算法步骤、识别层次结果的基本特性以及其与以往产业关联分析方法的比较优势.最后以经统一调整的1997及2002年投入产出表为基础,对我国国民经济产业关联的层次识别进行实证分析,经对识别结果的跨期对比分析,证明该识别方法的解释效果良好. 相似文献
10.
针对我国对舞弊的会计师事务所处罚力度明显不够的事实,监管机构应加大处罚力度,在确定合理处罚的基础上选择适当的监管力度,政府监管力度按成本效益原则确定监管费用的最优投入,决定监管机构的规模和大小,并完善相关的机构建设。 相似文献