The approximation capabilities of the minflex-Laurents,translog, and generalized Leontief forms

This paper compares the approximation capabilities of the minflex-Laurents translog and minflex generalized Leontief cost functions with their translog and generalized Leontief counterparts in Monte Carlo experiments. The minflex Laurent specifications generally provided closer approximations to underlying technical and economic parameters. Imposition of nonlinear restrictions on some of the parameters of the minflex Laurent models yielded measurable improvement in estimated elasticities of substitutions, returns to scale, and rates of technical change.The refereeing process of this paper was handled through E. Appelbaum.     

Does price reflect emotional,structural or performance quality?

Three denim jeans products from the same manufacturer with differentiated pricing and labels (antiqued, sandblasted, and stonewashed) were used to determine the relationship between price and quality. Both qualitative and quantitative procedures were used to analyse the garments. All three jeans were made of twill weave with 3 × 1 repeat. Both structural and performance characteristics were compared using standardized tests. Analysis of variance was used to compare the selected structural and performance characteristics among the three jeans products. Tukey’s HSD tests were used for post hoc multiple comparisons for three jeans. The findings revealed that despite the fact that all three jeans products were from the same store, and that the fabrics used the same weave, degree and direction of twist, the jeans differed significantly for several structural and performance characteristics. Several possibilities for future research were explored.     

Analysing Materials and Energy Flows in an Industrial District using an Enterprise Input–Output Model

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.     

军队物资库存的一个最优控制问题

讨论了非均衡军队物资库存问题，以最优控制理论为工具，得出了消耗量与库存量之间的变量关系，从而达到在保障供应的前提下，提高军事经济效益的目的     

企业生产物流中物料搬运方式的优化

企业生产物流中物料的搬运方式一般由所搬运的物料的功能、性质、搬运量等进行选择，仅局限于定性分析。通过建立数学模型，对企业生产物流搬运方式进行定量优化，并通过实例，说明对生产物流搬运方式进行量化分析是可行的。     

发展建材企业物流工程的对策

从剖析我国建材企业物流发展的现状出发,对建材企业物流特点、存在的主要问题,提出了建材企业物流工程的发展方向和整改方案。     

我国第三方物流发展现状及趋势

传统的物流企业大多是自己建仓库，办车队，万事不求人的同时大大增加了成本。专家们提出，物流企业发展应该走专业化道路，第三方物流企业在中国已经崭露头角，并且显示出强大的生命力。本文介绍了第三方物流的含义及产生原因，指出了第三方物流的作用，并且分析了预测了国内第三方物流的发展现状及未来走向，本文认为，第三方物流前景看好。     

金融发展理论中“金融发展”涵义的演进

戈德史密斯（1969）和爱德华·肖（1973）分别对发达国家和落后国家的金融发展状况进行了实证研究，得出了落后国家经济之所以落后，主要是因为其金融发展与发达国家之间存在着明显的差异的结论，由此提出了金融深化的观点，标志着金融发展理论的形成。在金融发展理论的指导下，许多落后国家纷纷改革其金融体制，推行金融自由化，以促进其金融发展。然而20世纪90年代以后，全球金融危机的频繁爆发，引起了人们对金融发展理论的反思。金融发展理论的再度兴起，使金融发展的涵义不断得到丰富与发展，金融发展涵义从结构观、制度观向功能观和环境观逐步演进。     

具纳米孔的过渡金属三维配位聚合物的合成与储气性能研究进展

综述了具有纳米孔道的过渡金属三维配位聚合物的合成方法,主要是通过选择合适的配体来增大孔道和提高配合物的热稳定性,达到增强储气性能的目的。     

建立应急防控物资供应链模式设想

伴随紧急事件发生常会出现物资短缺、供应渠道不畅等问题,尤其对于一些像医疗用品等特殊物资的供给,因其规格标准具有严格要求,加之生产企业和供应商数量有限,短时间获得大量供应尤其存在困难。文章运用供应链管理模式结合医用物资的生产供应特点,提出了由政府层面组建应急防控物资供应链并发挥指挥协调作用的设想,通过集中整合政府各职能部门和社会分散资源,保障各类应急防控物资顺利获得并及时发送到位。