浅谈改装车备胎升降机构的运用

备胎升降机构是改装车的重要部件之一，文章对备胎升降机构在改装车上的运用作了简要介绍及展望。     

The information quality and source credibility matter in customers’ evaluation toward food O2O commerce

This study examines customer’s decision making when purchasing food product through O2O commerce applying the elaboration likelihood model (ELM) and the technology acceptance model (TAM). Further, this research investigates which information processing path, central route (information quality) or peripheral route (source credibility), is related to purchase frequency. Results of the data analysis demonstrate (1) the positive relationship between information quality, perceived usefulness, and perceived ease of use; (2) the significant relationship between source credibility, perceived usefulness, and perceived ease of use; (3) the significant influence of perceived usefulness and perceived ease of use on customer trust; and (4) the significant relationships among customer trust, attitudes, and behavioral intentions. In addition, customers with high purchase frequency tend to process messages via the central route, while customers with low purchase frequency focus on the peripheral route. These findings provide theoretical and managerial implications that contribute to O2O commerce marketing.     

基于Logistic模型和TAM模型的数字人民币使用意愿影响因素分析

随着应用场景日渐丰富，数字人民币正加速融入百姓生活，其在转变人民币使用方式、助力消费和实体经济复苏等方面发挥了积极作用。作为法定货币，数字人民币具有节省、安全、普惠等特点，以数字经济为代表的科技创新催生了基础金融服务水平与效率，为构建发展新格局提供了有力支撑。通过利用Logistic工具和TAM模型分别从客户对于数字人民币的接受意愿和使用意愿来开展研究，对影响数字人民币使用意愿的影响因素进行分析，探索数字人民币的应用场景，以促进数字人民币健康发展。     

网络团购消费者购买意愿影响因素实证研究

本文基于TAM模型,引入感知风险和感知信任两个中间变量构建概念模型并形成研究假设,通过网络实地调研获取原始问卷的基础上,运用SPSS21.0和AMOS21.0分析软件对调研数据进行分析,检验了团购网站形象因素、团购商家因素、团购产品因素以及参照群体因素对网络团购消费者购买意愿的影响路径及程度。     

上市公司审计、财务困境与会计师事务所更迭——基于2000-2003年上市公司数据的实证研究

上市公司会计师事务所的更换越来越引起市场、投资者以及研究者的关注。本文主要基于国外的相关研究和中国股市及上市公司的特征，提出八个研究假设，然后构建Logistic回归模型，依据2000-2003年上市公司年报数据进行假设检验，主要考察非标准审计意见、审计者规模、财务困境和审计迟滞与会计师事务所更迭之间的关系。综合Logistic回归分析结果，基本上可以认为，在同等条件下，上年度及本年度被出具非标准审计意见、由规模小的会计师事务所审计、每股经营现金流为负(处于财务困境中)、上年度和本年度审计迟滞时间长的上市公司更有可能更换会计师事务所。同时，被ST以及公司规模小的上市公司更有可能更换会计师事务所。     

公众对电子政务初始信任形成的影响因素研究

电子政务正逐渐为越来越多的公众所采纳。世界各国都开始重视电子政务的发展,政府大力推广电子政务最大的目标是更好的为公众服务,建设服务型政府。然而,公众很少使用电子政务。缺少信任被认为是造成使用率偏低的最重要的原因之一。本文在技术接受模型(TAM)和初始信任的理论基础之上,讨论了网络信任和政府信任这两大宏观因素对构建电子政务初始信任的作用原理。本文以政府门户网站为研究对象展开研究,希望能为政府推广电子政务提供决策参考。     

收视率调查状况与中国收视率发展模式的探讨——兼谈数据垄断

近几年来，收视率数据在我国电视行业中扮演起了越来越重要的角色，成为业内外人士共同关注的热点话题。2009年年初，曾在中国收视率市场上运作了十余年的AGB Nielsen退出中国市场，其直接后果是让在中国市场上本已占有了80％以上份额的CSM媒介研究某种意义上垄断了中国的收视率调查市场。垄断市场结构的形成，以及国际广告公司WPP对CSM的控股，引发了人们对数据客观性和公正性的关注。本文通过回溯历史．归纳全球收视率调查的商业模式，认为要推动中国收视率调查行业的健康发展，关键问题不在于关注垄断或者外资参股的问题，而在于对收视率调查业务的规范和监督问题．一个由行业各万共同参与和运作的收视平调查监督机制，正是未来中国收视半调查行业健康发展的必须。     

Cost effectiveness and impact on quality of life of abobotulinumtoxinA and onabotulinumtoxinA in the treatment of children with lower limb spasticity in Canada

Abstract

Background: Injectable botulinum neurotoxins are a mainstay of treatment for pediatric spasticity. AbobotulinumtoxinA and onabotulinumtoxinA are both injectable toxin therapies used to treat pediatric lower limb (PLL) spasticity in Canada. The objective of this study was to assess the cost-effectiveness of abobotulinumtoxinA vs. onabotulinumtoxinA in the treatment of PLL spasticity in Canada.

Methods: A probabilistic Markov cohort model with a 2-year time horizon was developed, with health states defined by response to therapy, as characterized by the goal attainment scale (GAS). Based on randomized controlled trial evidence, response to therapy was similar or higher for abobotulinumtoxinA relative to onabotulinumtoxinA; uncertainty was incorporated into model parameters, however, as the two therapies have not been compared head-to-head. Canadian resource use and cost data were incorporated.

Results: In the base case, abobotulinumtoxinA generated 1.48 quality-adjusted life years over the model time horizon, compared to 1.47 for onabotulinumtoxinA. AbobotulinumtoxinA was associated with cost savings of $123 CAD, reflecting lower costs in both medication acquisition and health services. The estimated improvement to quality of life and reduced costs result in an estimate of economic dominance for abobotulinumtoxinA over onabotulinumtoxinA. This dominant result persisted across probabilistic and scenario analyses.

• Key points for decision makers

• Based on a review of available clinical evidence, abobotulinumtoxinA was found to have significant and/or numerical efficacy benefits to onabotulinumtoxinA on functional outcomes (Goal Attainment Scale) and tone (Modified Ashworth Scale) and in the treatment of pediatric lower limb spasticity

• In this cost-effectiveness analysis, abobotulinumtoxinA was found to be associated with greater quality-adjusted life years and lower costs than onabotulinumtoxinA (economically dominant)

• A limitation of this analysis was the uncertainty around key parameters. Specifically, the lack of head-to-head comparison data for the two therapies, and variable data regarding likely onabotulinumtoxinA dosing in PLL in clinical practice. However, across a range of plausible scenarios, the economic dominant result remained.

     

中国经济的动态效率——基于修正黄金律的研究

利用新古典的修正黄金律规则，通过数值模拟的方法估计了我国与修正黄金律相一致的最优储蓄率，在与实际储蓄率比较后发现：（1）我国的实际储蓄率在1978-2003年间平均为38％，低于最优储蓄率的基准值40．3％，因此认为不存在储蓄过度，经济整体是动态有效的；（2）20世纪90年代以来，实际储蓄率略微超过最优储蓄率，因此认为，存在一定程度的资本过度积累，我国90年代以来的经济有可能是动态无效的。     

Regression Analysis with a Stochastic Design Variable

In regression models, the design variable has primarily been treated as a nonstochastic variable. In numerous situations, however, the design variable is stochastic. The estimation and hypothesis testing problems in such situations are considered. Real life examples are given.