经济学、经济增长理论与经济增长理论模型

一、“新”称号下的老做法自20世纪80年代中期起,西方的经济理论界又一次兴起了研究经济增长理论模型的热潮。在这股研究热潮中出现了难以计数的新的经济增长理论模型,人们通常将它们统称为“新经济增长理论”或“内生经济增长理论”。当然,“新经济增长理论”是相对于“旧”的传统经济增长理论而言的,“内生经济增长理论”则是相对于某种因素为“外生”的经济增长理论模型而言的。而这里所说的“旧”的、“外生”的传统经济增长理论模型,指的就是新古典的经济增长理论和经济增长模型,它由索洛(Solow)和斯旺(Sw an)等人提出,而完整成型的代…     

《馀兴》杂志所刊传奇考述

《馀兴》杂志尝刊载传奇十二种 ,全部为以往未知之作 ,是近代传奇杂剧文献的新发现 ,具有重要的研究价值。本文对这些剧本的作者生平、版本流传、故事本事及其他相关情况进行了考证辨析 ,并对其内容特点、体制特征和文献价值予以分析评论 ,提供了许多新见的第一手资料 ,披露了以往未为人知的戏曲史事实     

民国早期电影在新疆的传播

20世纪早期，新疆没有中国经济发展及对外开放的中心上海所具有的人才优势，其受到多元外来文化的影响相对缓慢，所以在电影产生后的20多年的时间里，新疆民众对电影的认识从非常被动的观影开始，一直到抗战前后还主要停留在观察和简评的层次上，新疆只有电影放映，电影制作明显缺位。新疆电影传播从无到有，从自娱自乐性质的放映到20世纪30年代后电影放映业的产生，经历了一个较为艰辛的发展历程。     

多项式趋势曲线预测模型的研究

运用折扣最小平方法估计预测模型的参数 ,在最小平方法的基础上对误差平方和进行了指数折扣加权 ,使其总和达到最小 ,同时也解决了三点法估计参数时所面临的困难 .     

基于用户级的校园网络常见安全漏洞及对策

针对校园网安全问题的文章很多,但大多是围绕服务器的安全问题进行讨论。本文主要从用户的 应用角度来分析校园网的常见安全漏洞,并提出相应的解决对策。     

Equitable colorings of Cartesian products of square of cycles and paths with complete bipartite graphs

A graph G is said to be equitably k-colorable if the vertex set of G can be divided into k independent sets for which any two sets differ in size at most one. The equitable chromatic number of G, \(\chi _{=}(G)\), is the minimum k for which G is equitably k-colorable. The equitable chromatic threshold of G, \(\chi _{=}^{*}(G)\), is the minimum k for which G is equitably \(k'\)-colorable for all \(k'\ge k\). In this paper, the exact values of \(\chi _{=}^{*}(G\Box H)\) and \(\chi _{=}(G\Box H)\) are obtained when G is the square of a cycle or a path and H is a complete bipartite graph.     

Environmental Sustainability in U.S. Assisted Living Facilities

Population aging and environmental sustainability appear to be on a collision course. Concurrent with the increasing needs of older adults for more goods, services, and housing, concern for the environmental impact of this population is growing. Environmental sustainability efforts by assisted living facilities (ALFs) were queried using an online survey focusing on the following four areas: facility information, sustainable practices, motivations to green, and views of sustainable certification. The survey was sent to 800 ALFs from 34 states. The results indicated movement toward environmental sustainability, primarily connection to community, interaction with nature, and quality of life improvement for residents and staff. This study also depicts the challenges of greening while keeping human well-being a top priority. Furthermore, administrators of ALFs were largely uninformed about greening but viewed the costs and paperwork as barriers to greening and certification. Suggestions for future research, education, and the promotion of greening in ALFs are proposed.     

基于因子分析的武陵山区中心城市经济竞争力评价

本文设计了一套城市经济竞争力指标体系,利用2011、2009和2006年的统计数据,借助因子分析方法对武陵山区六个中心城市经济竞争力做了评价。结果表明:湖南怀化经济竞争力排名第一,湖北恩施紧追其后,贵州铜仁逐步上升,湖南湘西逐步下降,张家界和黔江分居五六位。其原因一方面可能在于各地行政管辖范围不一致使各自经济体量有别,另一方面也可能因为各地经济发展速度快慢不同以致排名顺序因时而变。     

货物列车编组计划的自适应遗传算法研究

货物列车编组计划是铁路货物运输管理的重点和难点之一,而我国铁路目前运能紧张,优化货物列车编组计划便能部分地解决这个问题。考虑到分组列车能减少集结耗费、加速车辆运行等优点,在分析了分组列车的技术效益的基础上,整合了优化模型,并设计了自适应遗传算法求解了该问题。通过与单组列车编组计划和最佳单组列车编组计划考虑其分组方案的情况的对比,测试结果表明整体优化后的编组计划具有更大的技术效益。     

Finite sample tail behaviour of hodges-lehmann type estimators

The tail behavior of Hodges-Lehmann type location estimators is studied with respect to a tail performance measure. The result obtained here generalizes and complements the corresponding work on R-estimators of JurecKova (1981a). The connection between the tail behavior and the breakdown point discovered in He, Jureckova Koenker and Portnoy (1990) for regression and monotone location estimators is extended to Hodges-Lehmann type location estimators, confirming the important role of the tail behavior as a measure of robustness of estimators.