品牌组合战略对子品牌/品类间溢出效应的影响研究

基于现有对品牌组合战略的划分,选择了两种典型的品牌组合战略,分析其对品牌溢出效应的影响差异。结果显示,品牌组合战略和子品牌/品类数量具有交互作用,品牌组合战略具有主效应,单一品牌组合战略更容易产生较高的品牌溢出效应;品牌间共同特征的数量和消费者对品牌的熟悉度也对溢出效应具有显著影响。     

中美欧人工智能产业风险研究及中国对策

运用熵权法与层次分析法组合赋权,集成灰色综合评价,构建人工智能产业风险评价模型,对中、美、欧盟三大经济体人工智能产业风险进行评估.研究结果显示:美、欧人工智能产业风险为中等等级,而中国处于较高等级,且在产业创新能力、产业规模及产业能源消耗问题最为突出,最后结合研究结果提出降低中国人工智能产业风险对策建议.     

基于具有不确定性随机扩散模型的动态资产组合选择

假设资产收益服从随机扩散过程,运用随机控制方法获得动态资产组合的封闭解,并以上证综指为样本,实证研究模型参数不确定性与动态资产组合的关系.结果表明,模型参数不确定性导致资产组合存在对冲需求,并与风险规避程度、投资期、信息量有关;与独立的正态过程相比,模型参数不确定性效应可提升一阶自回归过程下动态资产组合的稳健性;动态资产组合问题只有在其投资期末才等价于静态资产组合问题.     

联盟组合多样性、关系强度与技术标准化能力

利用1999至2013年拥有标准联盟参与经历的170家车辆生产企业的数据,研究标准联盟组合多样性对企业两类技术标准化能力(主导能力、跟随能力)的影响,及关系强度在上述影响中的调节作用。基于负二项随机效应回归模型的实证分析发现：标准联盟组合多样性与企业技术标准化主导能力呈正U型关系,与技术标准化跟随能力呈倒U型关系。在标准联盟组合资源向技术标准化能力转化的过程中,联盟关系强度发挥了显著调节作用：随着关系强度提升,联盟组合多样性与技术标准化主导能力的正U型关系曲线、与技术标准化跟随能力的倒U型关系曲线将变得更为陡峭。     

Increasing employability by implementing a Work-Integrated Learning partnership model in South Africa – A student perspective

In South Africa, 70 per cent of the population is under 35 years old. South Africa has a vision to increase youth employment by focusing on education, training and skills development that will promote employment opportunities. A work-integrated learning (WIL) partnership model was developed to provide students with work experience and to increase their employability. this article presents the research on the perspectives of students subsequent to their WIL experience. the research method consisted of a structured questionnaire with both closed and open-ended questions. The study findings indicated that students were capable of seeking their own WIL placement and that over 90 per cent of students experienced WIL as rewarding, with multiple opportunities for employment. the article adds theoretical value by increasing the WIL body of knowledge from a student perspective, as well as strategic and practical value by presenting the WIL partnership model that may easily be implemented by lecturers in various disciplines across the continent of Africa and beyond to enable students to enter the workplace with confidence.     

清洁技术企业专利组合策略研究

清洁技术企业的创新方案往往具有跨领域和多层次的特点,专利组合是这类企业全面保护其创新方案及获取持续竞争力的必要与有力工具。案例分析风能领域典型企业专利组合的构建过程,证实专利组合的构建必须基于技术发展趋势和竞争态势的把握,同时揭示清洁技术企业专利组合策略的一般模式。而对"碳捕获和封存"领域专利文献的分析发现,专利组合分析方法可以对拟研究领域内的技术及竞争情况进行有效监控,并反过来为企业建立专利组合提供多层面、可视化的情报信息。     

大学英语网络自主学习平台的建设与实践

随着大学英语教学和课程改革的深化,各高校加大了大学英语教学改革的力度,在课程改革的基础上设计和开发了形式多样的大学英语自主学习平台。以上海对外贸易学院为例,介绍大学英语自主学习平台的设计及运用。同时,探讨电子学档在大学英语自主学习平台中的运用。并指出大学英语自主学习平台在使用过程中存在的问题及其对策,以期对各高校大学英语网络自主学习平台的建设起着抛砖引玉的作用。     

Online reflective writing mechanisms and its effects on self-regulated learning: a case of web-based portfolio assessment system

The purpose of the present study was to design reflective writing mechanisms in a web-based portfolio assessment system and evaluate its effects on self-regulated learning. Participants were two classes of juniors majoring in data processing and taking a course called “Website design” at a vocational high school in Taiwan. One class was randomly selected and assigned as an experimental group (41 students) reflecting on learning processes through a web-based portfolio assessment system, whereas the other class was assigned as a control group (41 students) reflecting on learning processes through a paper-based portfolio. The result revealed that students who were highly satisfied with online reflective writing mechanisms significantly outperformed students who were less satisfied with online reflective writing mechanisms in self-regulated students reflecting on learning processes through a web-based portfolio assessment system significantly outperformed students reflecting on learning processes through a paper-based portfolio in self-regulated learning.     

模拟退火算法的改进及其应用

针对贷款组合优化决策模型的求解问题，以模拟退火算法为基础，利用设置记忆器和在算法后链接一个局部搜索过程的方法，对原有算法进行了改进，该算法可兼顾解的质量和运行时间，快速找到最优解，克服了原有算法的随机性。数值计算的结果表明，该算法具有很强的适用性。     

战略导向转换与创新过程整合关系的研究进展

转型期的调整激发了大量战略导向转换与创新过程整合的相关研究,并将其归结为基于产品创新特征的战略导向对创新过程整合的单方向作用过程。但是创新过程所蕴含的动态能力作为影响战略导向转换的关键因素以及大量产品组合的开发实践要求将这种单向作用扩展成基于产品组合创新特征的双向均衡模型。本文通过创新产品组合特征的中介作用,建立了战略导向与企业创新过程整合之间的双向均衡分析框架,总结了战略导向转换和创新过程整合的相关内容及其关系的研究进展,指出了建立创新过程整合基础框架对于研究二者双向作用关系的必要性;同时发展出适用于产业阶段发展和政策环境不确定性下研究二者双向均衡变动的计算试验理论也是未来研究的重点。