An agile approach for supply chain modeling

This paper proposes the generic label correcting (GLC) algorithm incorporated with the decision rules to solve supply chain modeling problems. The rough set theory is applied to reduce the complexity of data space and to induct decision rules. This proposed approach is agile because by combining various operators and comparators, different types of paths in the reduced networks can be solved with one algorithm. Furthermore, the four cases of the supply chain modeling are illustrated.     

National Culture,Economic Development,Population Growth and Environmental Performance: The Mediating Role of Education

Literature on ethical behavior has paid little attention to the mechanism between macro-environmental variables and environmental performance. This study aims at constructing a model to examine the␣relationships which link cultural values, population growth, economic development, and environmental performance by incorporating the mediating role of education. The multiple linear regression model was employed to test the hypotheses on a 3-year-pooled sample of 51 countries. Empirical results conclude that national culture, economic development, and population growth would significantly influence environmental performance directly. In addition, through the mediating effect of education, population growth and national culture would significantly affect environmental performance indirectly. These findings provide theoretical and managerial implications for constructing the mechanism of cultural values and ethical behavior in general and environmental management in particular.     

VIX option pricing

Substantial progress has been made in developing more realistic option pricing models for S&P 500 index (SPX) options. Empirically, however, it is not known whether and by how much each generalization of SPX price dynamics improves VIX option pricing. This article fills this gap by first deriving a VIX option model that reconciles the most general price processes of the SPX in the literature. The relative empirical performance of several models of distinct interest is examined. Our results show that state‐dependent price jumps and volatility jumps are important for pricing VIX options. © 2009 Wiley Periodicals, Inc. Jrl Fut Mark 29:523–543, 2009     

铁路运输对沿线城市发展的影响研究——以鄂尔多斯市铁路发展规划为例

铁路运输对沿线城市的发展造成了巨大影响。以鄂尔多斯市为例,从铁路运输的特点及优势分析入手,探讨了铁路运输在城市发展中的地位和作用。研究鄂尔多斯市经济社会发展以及铁路运输的基本情况,认为目前鄂尔多斯市铁路运输一定程度上影响了经济社会的长期快速发展。在此基础上分析预测鄂尔多斯市的铁路客货流量,并提出了鄂尔多斯铁路发展的初步规划。     

旅游用地研究进展及启示

文章分析旅游用地的概念,研究近30年国内外旅游用地文献.研究发现,国外旅游用地研究起步较早,成果较多,主要集中在旅游用地模式及空间分布、旅游用地评价、旅游用地相关者态度、旅游用地开发及可持续管理等方面.国内近年来开始关注旅游用地研究,主要集中在旅游用地评价、旅游用地土地变化、旅游房产、旅游度假区土地利用、旅游用地类型及功能结构、旅游用地管理及可持续发展等六大方面.文章对今后我国旅游用地的研究提出了建议.     

推进大都市农民工市民化路径中的第三个选择探索——基于上海市农民工状况调查的研究

我国的农民工将长期、大量地存在,但这不应当成为阻碍农民工市民化的理由,相反正是由于我国相关制度改革滞后,造成农民的非农化与市民化的非同步,使得大量农民工长期存在。上海选择合适的方式优先促进农民工市民化,不仅是率先建设全面小康的要求,也是促进我国新农村建设的要求,而且有助于长三角地区县域经济的发展。从上海农民工现状调查看,大部分农民工正不断失去返乡成为农民的机会,同时市场经济决定了他们也不具备在上海长期像市民一样生活的条件,因此本文提出农民“海归模式”市民化是上海农民工的现实选择。     

连续刚构桥悬臂施工技术研究

本文给出了预应力混凝土连续刚构箱梁悬臂施工的工艺控制,并对施工中常出现的影响工程质量的一些问题作了深入细致的介绍和探讨。     

国际儿童友好型城市建设路径及对北京的启示

在"建设儿童友好城市"被提上我国各级政府"十四五"发展规划和实践议程的背景下,首先对国际通用的儿童友好型城市概念、愿景、目标和实施战略进行简要提炼;其次,对全球参与儿童友好型城市倡议的国家构成、关注重点和建设过程进行梳理;第三,选取在儿童福利领域有突出表现的荷兰、加拿大、芬兰三个国家及内部城市作为典型案例,从营造健康的...     

“一带一路”倡议是否推动了我国技术扩散-——基于高新技术产业的分析

基于“一带一路”倡议的国际间技术创新合作是推动构建新发展格局的重要举措。基于技术扩散理论,运用2008—2019年我国与全球135个经济体间贸易数据,从高新技术产业出口视角分析我国在“一带一路”倡议前后对东道国的技术扩散效应,并讨论技术邻近性、制度距离等约束因素对技术扩散的影响,进而对理论分析结果进行了验证分析。结果表明：“一带一路”倡议有助于我国高新技术产业的技术扩散,并能通过增加与东道国的技术邻近性强化技术扩散性;但制度距离对该倡议下的技术扩散有限制性作用。研究结论为新发展格局下我国通过“一带一路”倡议拓展国际科技合作空间,通过强化技术创新成果转移、知识扩散推动高水平对外开放提供了有益参考与启示。