基于GARCH族模型对H股指数期货的VaR与CVaR值的实证研究

以港交所H股指数期货的收盘价格数据作为实证载体,基于GARCH族模型中残差的正态分布、T分布和广义误差分布（GED）三种不同情形,分别采用GARCH、EGARCH及PARCH模型,计算H股指数期货收益波动序列的VaR和CVaR值,结果表明基于广义误差分布的PARCH模型（GED—PARCH）无论在计算VaR值还是CVaR值方面都是最优的。     

论金融消费者权益的法律保护

金融消费者概念作为消费者概念在金融领域的延伸,越来越受到人们的认可。近年来,伴随着金融市场的快速发展,尤其是金融危机以来,金融消费者保护问题日益突出。分析研究金融消费者权益受侵害的成因并提出相关对策和建议,对于完善金融消费者保护机制和维护金融市场的健康发展具有较强的现实意义。     

中小企业创业板上市的必要性及风险分析

<正>近年来,海外创业板市场在支持中小企业融资、促进高新技术企业发展及推进高科技和现代金融体系相融合的过程中所显露出的创造力,引起了我国学术界和管理层的普遍关注。2008年3月21日中国证监会出台了《首     

University Students’ Attitudes Towards Entrepreneurship: A Two Countries Comparison

There is general agreement that attitudes towards the entrepreneur, entrepreneurial activity, and its social function are determinant factors for university students to decide an entrepreneurial career.This empirical study aims at assessing and comparing the attitudes of university students towards entrepreneurship and enterprise formation in Catalonia and Puerto Rico, using a sample of 837 and 435 students, respectively.Results reveal a positive entrepreneur’s image. Both samples have a favorable perception of desirability of new venture creation, although the perception of feasibility is by far not so positive and only a small percentage has the firm intention to create a new company.     

高校家庭经济困难学生资助体系问题分析及对策研究

高校目前建立的多元化家庭经济困难学生资助体系,对家庭经济困难学生进行资助,但还存在一些不足。本文围绕以学生为本的核心思想,结合新形势新背景,通过分析高校家庭经济困难学生资助情况现状,指出家庭经济困难学生资助工作体系存在的问题,并提出一些建议,以期完善该体系。     

Substitution Possibility between Unpriced Pulp and Wastepaper in the U.S. Paper and Paperboard Industry

A greater use of recycled wastepaper would preserve virgin forests as well as reducing the amount of wastepaper going to landfills. These environmental goals depend critically on the elasticity of substitution between pulp and wastepaper in producing paper and paperboard. Since most of the pulp consumed by U.S. paper mills and paperboard mills is transferred internally from vertically integrated pulp mills, the price data on pulp is not available. This paper constructs an econometric model which enables us to estimate the substitution possibility between unpriced pulp and wastepaper in the U.S. paper and paperboard industry. Empirical results show that the elasticity of substitution between unpriced pulp and wastepaper is positive, but not statistically significant.     

在位企业非连续性技术变革的技术代际桥研究

非连续性技术变革给在位企业带来巨大挑战,要求在位企业克服新技术研发困难和自身潜在惰性进行积极响应,在与新进入企业市场竞争中获取持续竞争优势,化解熊彼特提出的破坏性创新威胁。整合社会网络理论、知识管理理论及创新管理理论,以65家汽车综合型整车在位制造企业为样本,通过搭建发明家桥、合作研发桥、混合技术桥等3个维度的技术代际桥,探讨在位企业如何在维持两代技术阶段性平衡的前提下提高新技术创新绩效。结果发现：发明家桥与企业新技术创新绩效呈倒U型关系;合作研发桥和混合技术桥对企业新技术创新绩效具有显著促进作用;旧技术创新绩效负向调节发明家桥与新技术创新绩效的倒U型关系。研究旨在为在位企业应对非连续性技术变革,提高新技术创新绩效提供相应的对策建议。     

Multi-stakeholders’ assessment of bike sharing service quality based on DEMATEL–VIKOR method

ABSTRACT

Bike sharing is a sustainable mode of urban transportation. Assessing the perceived service quality is essential to improve the development of bike sharing. Most of the existing research evaluates the service quality of bike sharing only from the perspective of its users. This study assesses the perceived quality gap among four different stakeholders including government regulators, platform operators, bike association and users. First, an evaluation criteria system consisting of sixteen criteria obtained from the five dimensions of tangibles, reliability, responsiveness, assurance and empathy is constructed based on a revised service performance model. Thereafter, a hybrid multi-criteria decision-making model that combines Decision-Making Trial and Evaluation Laboratory (DEMATEL) with VIsekriterijumska Optimizacija I Kompromisno Resenje (VIKOR) is proposed. Then, the model is applied to evaluate the service quality of bike sharing in Xi’an City. Finally, some useful suggestions are given to improve the bike sharing service quality from the perspective of multi-stakeholders.     

高新技术产业集群与创新型城市协同发展研究

在经济全球化的背景下,一种以创新为特征的高新技术产业集群在世界各地蓬勃发展,对提升城市竞争力产生了重要影响。目前许多城市已将创新型城市建设与高新技术产业集群结合在一起,但基于高新技术产业集群的创新型城市建设不再仅仅是资金、劳动力等要素在地域上简单的集中,它更需要诸多方面的协同发展。探讨了高新技术产业集群与创新型城市协同发展的原理和机制,认为高新技术产业集群与创新型城市建设协同发展是创新型城市可持续发展的根本途径。     

资本结构决策理论及其存在的问题分析

本文资本结构理论论进行了综合研究与评述,并对资本结构定量决策的每股收益分析法和比较资金成本法,对资本结构理论及目前资本结构定量决策方法存在的问题作了全面的分析研究,以其对企业财务管理理论研究与教学参考。