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Online product ratings offer consumers information about products. In this dissertation, I explore how the design of the rating system impacts consumers’ sharing behavior and how different players are affected by rating mechanisms. The first two chapters investigate how consumers choose to share their experiences of different attributes, how their

Online product ratings offer consumers information about products. In this dissertation, I explore how the design of the rating system impacts consumers’ sharing behavior and how different players are affected by rating mechanisms. The first two chapters investigate how consumers choose to share their experiences of different attributes, how their preferences are reflected in numerical ratings and textual reviews, whether and how multi-dimensional rating systems affect consumer satisfaction through product ratings, and whether and how multi-dimensional rating systems affect the interplay between numerical ratings and textual reviews. The identification strategy of the observational study hinges on a natural experiment on TripAdvisor when the website reengineered its rating system from single-dimensional to multi-dimensional in January 2009. Rating data on the same set of restaurants from Yelp, were used to identify the causal effect using a difference-in-difference approach. Text mining skills were deployed to identify potential topics from textual reviews when consumers didn’t provide dimensional ratings in both SD and MD systems. Results show that ratings in a single-dimensional rating system have a downward trend and a higher dispersion, whereas ratings in a multi-dimensional rating system are significantly higher and convergent. Textual reviews in MDR are in greater width and depth than textual reviews in SDR. The third chapter tries to uncover how the introduction of monetary incentives would influence different players in the online e-commerce market in the short term and in the long run. These three studies together contribute to the understanding of rating system/mechanism designs and different players in the online market.
ContributorsLiu, Ying (Author) / Chen, Pei-Yu (Thesis advisor) / Hong, Yili (Thesis advisor) / Gu, Bin (Committee member) / Arizona State University (Publisher)
Created2018
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Description理性决策理论基于“完全理性”假定,追求帕累托最优即个体的利益最大化。但是实际决策过程中,人的行为具备“有意识的理性,但这种理性又是有限的”,投资者也是并不是完全理性、同质的。海外投资也是如此,其背景特征诸如地域、性格、年龄、财富等特征都会对海外投资决策产生重大的影响,其程度大小势必也会因投资者背景特征的差异有所不同。考虑到投资者风险偏好与海外投资活动的关系鲜有文献涉及,笔者愿意做“第一个吃螃蟹的人”,选取该视角展开论述。

本文首先对前人的研究进行总结,概述了风险偏好的理论和偏好水平的度量办法,并总结了风险偏好对海外投资影响的理论基础,即决策理论和有限理性与行为经济学理论,为本文的研究奠定了坚实的理论基础。

其次,开展了问卷调查,对小城市城镇人群、二三线大城市人群、一线大城市人群、海外华人群体等不同地域的25-60岁之间的人群作为调查对象,回收了有效问卷3748份,并就问卷结果进行了描述性分析。发现跨地域人群有着不同的投资需求,小城市城镇人群整体来说对于海外投资需求较低;二三线大城市人群对海外投资不抗拒且具备一定研究和分析能力;一线大城市人群26%已考虑移民或大量海外投资,对海外投资产品有很强的分析能力;海外华人群体38%已考虑移民或大量海外投资,对于各类海外投资产品的接触机会很多。

再次,本文对风险偏好水平进行综合评价和度量。在此基础上,设定了研究变量和研究模型,采用回归分析的方法,对跨地域人群风险偏好、跨地域人群风险偏好对海外投资影响两块进行了实证分析,并验证了相关假设。本文认为,跨地域人群具有较为明显的风险偏好,其中一线城市人群风险偏好最高,高于海外华人群体,高于二三线大城市人群和小城市城镇人群。基于教育水平、财富程度和信息获取的风险偏好对海外投资影响的实证分析结果显示,风险偏好越高的区域,海外投资总额越多。充分验证了跨地域人群不同的风险偏好,以及风险偏好对海外投资的显著正向影响关系。最后,本文针对实证结果提出了相应的对策建议。
ContributorsWan, Jianying (Author) / Chen, Pei-Yu (Thesis advisor) / Wu, Fei (Thesis advisor) / Chen, Xinlei (Committee member) / Arizona State University (Publisher)
Created2019
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Description近些年来,我国城市化进程不断加快,到2020年我国常住人口城镇化率将达到60%左右,户籍人口城镇化率将会达到45%左右。伴随着我国城市化进程的高速推进以及经济水平的不断提高,公共物品及服务的需求程度加大,政府单独出资建设公共项目会导致资金不足、经营管理效率低下等问题。与此同时,我国当前不同层级地方政府的政府性债务都达到了一个非常高的水平,截至2017年末,中国地方政府债务16.47万亿元,债务率(债务余额/综合财力)为76.5%,其中地方负有偿还责任的债务约12.9万亿,地方政府性债务的控制和转化成为经济新常态下重要特征之一。在地方债务压力较大的情况下,PPP将替代土地财政和地方政府融资,为我国新型城镇化建设提供可持续的资金支持,PPP模式成为当前城市建设领域融资的重要选项。

据此,本文基于实证研究方法探讨在债务约束的背景下,在地方政府债务约束下,PPP模式的引入,对城市规划中建设用地面积、人口规划规模与容量、建设用地属性等的城市规划变量的影响;与此同时,考虑到地方政府的政策很大程度上受到是由地方官员,特别是受到作为地方政府党政“一把手”的市委书记和市长的晋升压力和激励的影响,讨论市委书记/市长的晋升压力和激励对PPP模式引入效果的影响。研究发现,在地方政府债务约束下,PPP模式的引入,显著增加城市规划中建设用地面积、人口规划规模与容量、建设用地属性等的城市规划变量;同时,地方政府官员存在利用PPP放大城市建设和规划规模的行为,反映了PPP项目在引入和使用的过程中很大程度上受政府官员的激励的影响。
ContributorsXu, Ke (Author) / Chen, Pei-Yu (Thesis advisor) / Zhu, Qigui (Thesis advisor) / Chen, Xin (Committee member) / Arizona State University (Publisher)
Created2019
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Description随着信息通信技术在金融科技领域中得到广泛应用,传统金融机构依靠互联网技术极大的提升了自己的金融服务能力和金融服务效率。但与此同时,作为一个新兴业态,与互联网金融服务配套的法律制度和保障措施还未完善,特别是互联网借贷业务,贷前的风控系统不完善,同时还缺乏贷后管理机制,造成了网络贷款平台不断出现爆雷现象。仅2018年7月一个月内就有200多家平台出现问题,而到2020年底为止,出现问题的在线借贷平台高达80%。为了更好的保障在线借贷平台和互联网金融行业的健康发展,亟需完善个人征信体系建设,科学评估借款人违约风险。为了解决这一问题,本文首先对现有研究进行了理论梳理,找到可能对违约风险产生影响的因素,并总结为个人特征、社交网络特征、金融特征等三方面的因素。在这之后,从社交网络特征对违约风险进行了深入分析。其次,利用大数据分析方法,构建了随机森林信用评价模型。最后,文章还通过与不同数据集上的相同模型、相同数据集上的不同模型进行对比,对本文构建模型的有效性进行了评估。 研究结论表明:(1)用户的社交网络特征对用户违约风险、欺诈等级具有一定的解释力度,其中用户通话类社交特征对用户欺诈等级的识别效果最好,其次为风险等级,违约标签的识别效果最差,而且用户的地域特征对社交网络特征有显著的调节作用。(2)通过随机森林模型,本文发现年龄、贷款金额是影响客户违约风险和欺诈等级的最重要的因素。(3)比较多元回归模型和随机森林模型,随机森林模型对样本用户特征重要性探索的准确度要高于多元回归模型。 根据上述结论,本文提出了相应了建议:(1)在线借贷平台在判断用户违约风险时,应该在现有的分析框架中考虑用户社交特征来提升用户风险预测精度;(2)信贷公司应该将随机森林等方法纳入到用户是否违约、风险等级和欺诈等级的预测中,这样会显著的提升公司对用户违约、欺诈等级的预测精度。
ContributorsHan, Wei (Author) / Shen, Wei (Thesis advisor) / Hu, Jie (Thesis advisor) / Zheng, Zhiqiang (Committee member) / Arizona State University (Publisher)
Created2022
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Description随着科技的发展,许多新兴技术被用于提高企业营销策略的精准性和有效性,如大数据、人工智能、虚拟现实等。基因检测作为新时代的生物技术,随着其成熟与普及,也逐渐被用于提高企业经营决策的有效性。基因检测能较真实地反映出人体的生理信息,不仅能帮助顾客了解其实际需求,也有助于企业针对性开发新产品和提供精准营销活动。本研究检验了企业营销活动中使用基因检测对消费者购买的提升作用,并尝试探讨相关机制。首先,本研究与护肤品品牌百雀羚合作,通过实验法观察并收集了使用基因检测和未使用基因检测的消费者购买数据,分析发现,不考虑其他因素时,基因检测能显著提高消费者护肤购买行为。短期内,基因检测对老顾客购买行为提升作用更强。长期来看,基因检测对新顾客购买行为提升作用更强。而在平均消费水平更高的地区,基因检测的作用更强。另外,本研究通过电话访谈的方式,进一步收集数据分析发现,肤质相关基因检测能显著提高消费者购买推荐护肤品的意愿。而当存在感知有用性时,愿意购买推荐护肤品的顾客人数会进一步提高。本研究发现基因检测可以有效提高顾客的购买行为和购买意愿,丰富了新技术与精准营销、客户关系管理等文献的内容。为进一步分析基因检测影响消费者购买行为和购买意愿内部作用机制的研究提供了初步尝试和基础支持。另外,本研究的结论也为企业利用基因检测技术提高营销策略和营销活动的有效性和精准性提供了启发和借鉴。
ContributorsWu, Jian (Author) / Chen, Pei-Yu (Thesis advisor) / Chen, Xinlei (Thesis advisor) / Li, William (Committee member) / Arizona State University (Publisher)
Created2022
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Description城市商业银行是我国银行业体系中的重要组成部分,在新冠疫情的背景下,本文从对我国商业银行不良贷款的成因进行分析,从新冠疫情前后城商行不良贷款、盈利能力、资本充足性等角度进行比较,总结新冠疫情之后城商行不良贷款规模上升、区域分化、不良处置加大等特征变化。然后,从企业、个人和银行本身等路径全面系统地分析新冠疫情对城商行不良贷款的直接影响,并从“宽信用”、“宽监管”和“宽货币”等政策层面对城商行不良贷款的间接影响机制进行分析。在实证分析上选取2018年一季度至2020年四季度的9个经济指标作为控制变量,分成宏观、行业和银行等三个层次,考虑到数据的可得性,选取20家上市城商行的不良贷款率作为被解释变量,通过建立连续型双重差分模型对新冠疫情对我国城市商业银行不良贷款率的影响进行实证分析,并进行稳定性和影响机制检验,得出了受疫情冲击越严重的地区,经济受影响越明显,因而城商行的不良贷款率增加得越多的结论,而且疫情对城商行不良贷款率且具有连续且时滞性的影响。相比高拨备覆盖率的城市商业银行,疫情更能提高低拨备覆盖率、抵御风险较低的城商行的不良贷款率。选取银行资本充足率作为被解释变量进行了稳健性检验。选取工业增加值和居民人均收入作为渠道变量,进行影响机制检验,结果说明工业增加值和居民人均收入对城商行不良贷款有负向的影响。最后,在理论和实证结果的基础上,对城商行不良贷款处置和有效预防疫情带来不良风险的措施提出相关建议。
ContributorsZhong, Rujian (Author) / Zhang, John (Thesis advisor) / Zhu, Ning (Thesis advisor) / Hu, Jie (Committee member) / Arizona State University (Publisher)
Created2022
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Description近年来,越来越多的工作团队将功能性领导角色分配给那些具有必要才能的成员。认识到这一趋势,领导学领域的学者开始将他们的关注重点从自上而下的垂直影响过程转移到团队成员之间的水平和共享的领导过程。共享领导,被定义为一种团队现象,即领导的角色和影响力在团队成员中分配,已经在一系列学术领域中得到了相当大的关注,包括工业和组织心理学、组织行为学、战略管理、和创业管理等。与其他领导理论关注正式任命的领导者的领导作用不同,共享领导强调团队成员在团队领导过程中的代理作用。特别是,越来越多的证据表明,共享领导在提高团队效率方面发挥着积极的作用。因此,共享领导力是一个有趣的新领域,它丰富了我们对领导力的理解,并将领导力范式从将领导力视为个人的属性转变为将领导力视为集体的属性。本文以AR公司的技术或研发团队为例,对其共享型领导的典型特征、表现形式以及对员工个体创造力和离职意向的影响机制进行了分析。第一,理清了技术型团队共享型领导的特征与表现形式。技术团队共享型领导主要实现了领导力与影响力在团队成员内部之间的共享和横向分担,且领导与下属之间的角色界限也变得模糊。同时,技术团队共享型领导表现在开放性的领导风格、团队内部的知识分享与共同学习以及领导角色定期轮换与交流等。第二,探讨技术型团队共享型领导对个体创造力与离职意向的影响机制。本文采用定量实证研究方法,按照量表开发、数据采集、数据分析等程序,检验共享型领导对个体创造力与离职意向的影响机制,研究发现:共享型领导能够正向影响员工的团队认同;员工的团队认同能够负向影响其离职意向;员工团队认同在共享型领导与员工离职意向之间具有中介作用;共享型领导与心理授权正相关;心理授权与个体创造力正相关;员工的心理授权在共享型领导与员工创造力之间有显著的中介作用;支持性人力资源实践在在共 享型领导与员工心理授权之间起到调节作用;支持性人力资源实践在在共享型领导与员工团队认同之间起到调节作用。
ContributorsJi, Pengwei (Author) / Chen, Pei-Yu (Thesis advisor) / Hu, Jie (Thesis advisor) / Zhang, John (Committee member) / Arizona State University (Publisher)
Created2022
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Description
The advancement of information and communication technology (ICT) has significantly transformed how people communicate and obtain information in both their personal and professional lives. In the realm of digitally-facilitated social interaction, this dissertation calls for attention to the importance of information technology artifacts (IT artifacts) on social welfare by showcasing

The advancement of information and communication technology (ICT) has significantly transformed how people communicate and obtain information in both their personal and professional lives. In the realm of digitally-facilitated social interaction, this dissertation calls for attention to the importance of information technology artifacts (IT artifacts) on social welfare by showcasing that the careful design and usage of IT artifacts have the potential to enhance the effectiveness, efficiency, and fairness of social interactions. The first study centers around addressing the cold-start issue that often arises when new products are introduced. Specifically, I investigate how machine-generated content can enhance the equity of new products. Analyzing data from Kaggle.com, my research demonstrates that the use of machine-generated content is effective in tackling the cold-start problem by increasing the adoption of the product in the initial phase. Additionally, my findings reveal that machine-generated content can also reduce information asymmetry for users regarding the datasets or associated providers. As a result, these outcomes provide strong evidence supporting the use of machine-generated content to enhance equity in online communities. The second research investigates the impact of a platform’s decision to impose application fees on enhancing the quality of matching results in an online labor market. Based on data obtained from Freelancer.com, my analysis demonstrates that the implementation of application costs serves as a motivator for workers to submit fewer but more selective bids. This, in turn, increases the likelihood of employers offering contracts, as workers are less likely to apply casually or without much thought. Overall, these results indicate that application costs can enhance the efficiency of the matching process. In the third study, I examine whether gender differences exist in telework adjustment as a response to disasters and to what extent such adjustments can help reduce gender inequality, using the COVID-19 pandemic as an example. The study's findings reveal the following: 1) Female workers exhibit a higher rate of telework adjustment than their male counterparts by 7% after accounting for differences in job sorting, and female workers are more responsive to external constraints. 2) Telework adjustment can help mitigate gender inequality in the labor market.
ContributorsHou, Jingbo (Author) / Chen, Pei-Yu (Thesis advisor) / Gu, Bin (Committee member) / Hong, Yili (Kevin) (Committee member) / Arizona State University (Publisher)
Created2023
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Description
In recent years, the decentralized exchange (DEX) has shown an explosive growth trend in recent years. Uniswap, as one of the largest decentralized exchanges, invented Uniswap, a decentralized financial protocol of the same name based on exchanging cryptocurrencies. Automated transactions between cryptocurrency tokens on the Ethereum blockchain. Currency trading participants

In recent years, the decentralized exchange (DEX) has shown an explosive growth trend in recent years. Uniswap, as one of the largest decentralized exchanges, invented Uniswap, a decentralized financial protocol of the same name based on exchanging cryptocurrencies. Automated transactions between cryptocurrency tokens on the Ethereum blockchain. Currency trading participants create a liquidity pool based on this agreement, and this paper mainly studies the factors that affect the liquidity of currency trading.Specifically, this paper explores the factors that affect monetary liquidity through three hypotheses. The first is the impact of rates on liquidity, exploring the differences in liquidity under various rates. Then, the impact of differences in Uniswap protocol versions on liquidity was studied. Compared with the V2 version, the Uniswap V3 version added centralized liquidity,which changed the unpaid loss. . This feature makes Uniswap V3 the most flexible and efficient protocol. Finally, the influence of different active users on liquidity is compared, and the change trend of liquidity under different numbers of users is explored. Based on the above three assumptions, this paper adopts GARCH and OLS regression analysis to explore and analyze the collected currency transaction data, and draws the following conclusions for the three assumptions: (1) Researcher may conclude that rates are correlated with trading volume, and volume growth impacts liquidity capacity and increases rates. Therefore, the fee rate has a significant impact on liquidity. (2) Compared with V2, V3, quantitative analysis was carried out using unpaid loss. It was found that impermanent loss has a more significant impact on the liquidity of the V3 version but has little correlation with the V2 version. (3) According to the analysis and comparison of the model, there is no obvious ARCH phenomenon among active users, so it is believed that there is no significant correlation between the two. (4) Combining conclusions 1 and 3, researcher further analyzed the impact of several independent variables on liquidity and found that the fee rate has a more significant influence than active users
ContributorsWu, Jiawei (Author) / Chen, Pei-Yu (Thesis advisor) / Hu, Jie (Thesis advisor) / Zheng, Zhiqiang (Committee member) / Arizona State University (Publisher)
Created2023
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Description本文的研究背景部分首先回顾了我国上市公司定向增发发展历程以及相关规章制度,相关数据显示定向增发投资收益率年度平均值与不同公司定向增发投资收益率都存在较大差异,而且我国上市公司定向增发受政策的影响较大。因此,探索我国上市公司定向增发投资收益率的影响因素是一个重要且有意义的研究课题。为此,本文基于现有关于定增投资收益率的三个基础理论,即监督成本理论、流动性风险补偿理论以及信息不对称理论,分别选取机构投资者参与、大股东参与以及信息不对称三个因素,通过实证方法探索影响我国A股上市公司定向增发投资收益率的因素。本文从上市公司定向增发的动因与经济后果以及定向增发投资收益率影响因素三个方面对已有文献进行了回顾,并将可能影响定增收益率的其他因素纳入实证模型进行考察。本文通过实证研究方法检验了各个因素对定增收益率的影响,并且对不同股权结构、产权性质企业定向增发进行了异质性分析。在拓展性研究方面,本文进一步将定增投资收益率细分为定增折价收益率与锁定期收益率进行考察;并考察了各个影响因素对定向增发上市后绩效表现的影响;最后,考虑到我国政策因素对定增收益率的显著影响,本文进一步考察了2011年与2017年两次定增细则的修订如何作用于各个因素对定增收益率的影响。 本文的研究在学术层面丰富了定向增发影响因素的相关研究。在实践层面,本文关于定增政策影响方面的研究结论能够为优化我国上市公司定向增发相关政策提供参考;本文提供了全面而又系统的定向增发影响因素的相关证据,以及各个因素如何作用于定增上市后公司的绩效表现,研究结论能够为我国定向增发投资者选择定向增发企业,更好地做好风险与收益权衡以及后期的投资管理提供参考依据,也为上市公司是否进行定向增发,以及如何进行定向增发提供了指引。
ContributorsZhou, Huanfei (Author) / Zhu, David (Thesis advisor) / Hu, Jie (Thesis advisor) / Shao, Benjamin (Committee member) / Arizona State University (Publisher)
Created2023