学术论文
研究焦点
全球学者
知识转移
明德商论
龙虎山下
媒体报导
Learning from a black box
Learning from a black box
We introduce a learning model in which the decision maker does not know how recommendations are generated, called the contraction rule. We present behavioral postulates that characterize it. The contraction rule can be uniquely identified and reveals how the decision maker interprets and how much she trusts the recommendation. In a dynamic stationary setting, we show that the contraction rule is not dominated by completely following recommendations and is incompatible with a property called compliance with balanced recommendations. Following this negative result, we demonstrate that the contraction rule may generate and reinforce recency bias and disagreement.

Pushing Yourself Harder: The Effects of Mobile Touch Modes on Users’ Self-Regulation
Pushing Yourself Harder: The Effects of Mobile Touch Modes on Users’ Self-Regulation
Many mobile applications use push notifications and reminders to explicitly educate, remind, and motivate users to perform healthy behaviors. However, users do not always act according to these explicit digital interventions. Our study investigates whether users’ self-regulation can be implicitly facilitated with a proper mobile interaction design. Specifically, we investigate the impacts of two touch modes that are supported by force-based interaction technology, that is, pressing and tapping. Drawing on the theory of embodied cognition, which suggests that people automatically infer meanings from their bodily actions, we conjecture that pressing, compared with tapping, enhances self-regulation because the action of pressing on the touchscreen embodies resolute approach motivation toward goals. We test our hypotheses in three experiments. The first experiment investigates beverage choices on a mobile app; the second experiment examines goal setting on a fitness app; and the third experiment focuses on personal hygiene learning on a mobile education app. The results from the three experiments show that pressing actions can improve users’ self-regulation in selecting a healthier but less tasty beverage (Study 1), setting higher exercise goals and performing more physical exercise (Study 2), and reducing lapses in maintaining personal hygiene (Study 3). In addition, such effects were more salient among users with a higher level of health knowledge and a promotion-focused health orientation. This study contributes to healthcare IT research by showing that mobile interaction can be leveraged to nudge users toward enhanced self-regulation.

整合分析:拉引营销活动对多元渠道企业进行有效营销的影响
整合分析:拉引营销活动对多元渠道企业进行有效营销的影响
是项研究为一个针对拉引营销活动如何影响多元渠道企业有效地推行营销活动的整合分析。高度灵活的拉引营销活动,目标是令多元分销渠道组合更具吸引力。作者透过整合以往的多元渠道分销文献,研究营销活动是否有效,与拉引营销活动及其分销渠道结构的配置,以及客户、竞争及产品类别的关系。是项分析结合研究样本的企业、数据和模型属性,发现当多元渠道企业在所有分销渠道中使用数码广告和价格促销时,营销活动更有效。跨渠道价格歧视并不会令营销活动更有效。此外,数码广告和价格促销是否配合多元化的渠道、渠道的丰富性、客户体验、市场竞争力和产品消费频率,也会对有效推行营销活动造成影响。

Corporate Lobbying of Bureaucrats
Corporate Lobbying of Bureaucrats
Executive agencies play a pivotal role in shaping the regulatory environment by crafting rules, enforcing regulations, and overseeing government contracts—all of which can have a profound impact on businesses. For firms, this potential impact creates a clear incentive for firms to influence these agencies, particularly during the critical stages of rulemaking and enforcement. In this context, lobbying emerges as a key tool that companies use to mold the regulatory landscape to their advantage. Unlike politicians, whose decisions are often swayed by electoral cycles and campaign contributions, agency officials are not elected, serve longer terms, and are less susceptible to direct political pressures. As a result, engaging in lobbying efforts with executive agencies is both more complicated and strategically crucial for firms operating within heavily regulated industries. However, the dynamics of such lobbying remain underexplored in the literature.
春节幸福感和疫情感知风险调查:来自机器学习的洞察
春节幸福感和疫情感知风险调查:来自机器学习的洞察
2023年刚结束的兔年春节内地民众过得怎样?调查显示,兔年春节期间,民众的幸福感平均值为5.47,介于“比较开心”与“开心”之间(1为最低值,7为最高值),“比较开心”以上人群占比为83.1%。
How to Recover from Work Stress, According to Science
How to Recover from Work Stress, According to Science
To combat stress and burnout, employers are increasingly offering benefits like virtual mental health support, spontaneous days or even weeks off, meeting-free days, and flexible work scheduling. Despite these efforts and the increasing number of employees buying into the importance of wellness, the effort is lost if you don’t actually recover. So, if you feel like you’re burning out, what works when it comes to recovering from stress? The authors discuss the “recovery paradox” — that when our bodies and minds need to recover and reset the most, we’re the least likely and able to do something about it — and present five research-backed strategies for recovering from stress at work.

研究企业之间的协调行为 – 郝宇博士
研究企业之间的协调行为 – 郝宇博士
计算机编程听起来好像和经济风马牛不相及,但拥有出色的编程技术,不但能帮助个人进行经济学学术研究,更能助你在商界捉紧更多就业机会。

构想虚拟货币的未来 – 游杨博士
构想虚拟货币的未来 – 游杨博士
作为教师,在鼓励同学努力学习之余,我亦会主动了解本地市场运作以及邀请雇主来到课堂分享业界经验。

从量子物理学到计量市场学—党矗博士
从量子物理学到计量市场学—党矗博士
理科出身的我,非常欣赏同学们的商业触觉。作为他们的师长,在教导他们使用数理工具作出科学判断的同时,我亦希望能够鼓励他们爱上学习,保持对未知事物的好奇心,应用课堂所学到的知识为社会做出贡献。

秃鹫、狼与人的故事:衡量生物多样性的经济价值
秃鹫、狼与人的故事:衡量生物多样性的经济价值
秃鹫与人类死亡率:在印度,当秃鹫消失后,其栖息地的生态迅速恶化,不仅导致更多地表水被致病菌污染,野狗和老鼠数量亦大幅增长。秃鹫的功能性灭绝导致每年印度新增十万例死亡,每年经济损失高达近700亿美元。
从人工窗口到智能问答:大语言模型与RAG技术重塑政务服务
从人工窗口到智能问答:大语言模型与RAG技术重塑政务服务
近年,类似于ChatGPT的大语言模型(Large Language Model,LLM)在全球迅速普及,展示出巨大的应用潜力。通过海量数据的训练,这些模型能够生成连贯且语义合理的文本,并具有卓越的问答能力。在政务服务领域,公众一般通过政府官网、移动应用查询政策法规、办事流程等信息,或者前往政务服务大厅求助。传统的政务服务主要依赖人工窗口服务和电话咨询,服务效率和响应速度往往受到限制,尤其是在遇到复杂问题或需要长时间排队等待时,公众满意度往往较低。随着技术的发展,特别是大语言模型的出现,政务服务逐渐迈进智能化、自动化。结合大语言模型的对话式咨询服务更为高效,能显著提升公众体验。
香港通往成为国际Web3.0中心的路径
香港通往成为国际Web3.0中心的路径
在过去十年,两大科技一直引领数字革命。首先是人工智能(AI),它已在全球得到了广泛应用,其次是备受争议的Web3.0,这是一种去中心化的区块链协议。本文将重点探讨Web3.0的发展,并进行深度解读。
院线大战客厅沙发:香港戏院如何扳回一局
院线大战客厅沙发:香港戏院如何扳回一局
从新冠肺炎疫情至今,香港电影院经历了一波关门大潮。截至2024年4月30日,累计16间戏院结业,其中包括UA连锁影院在2021年3月全线结业。这波关门大潮似乎还远未结束,上月12日MCL Cinema Plus+荷里活广场戏院宣布结业,而以播放小众电影知名的高先电影院,也传出将于租约期满后结束营业。
特朗普2.0启幕
特朗普2.0启幕
特朗普即将再次上任美国总统,特朗普2.0时代即将开始。 特朗普2.0计划包括减税、减少贸易逆差及限制移民。特朗普希望延续低税率,并在“2025计划”中提出新的税率结构,却可能加剧收入不均。陆炎辉博士指出,特朗普的减税政策虽能刺激经济,但也将增加国债,并可能影响社会福利支出,进一步挑战政府运作。
行为经济学之效:从致命工业意外说起
行为经济学之效:从致命工业意外说起
香港在2024年上半年的致命工业意外较前一年为多。主要涉及建造业和制造业的事故大多与有害物质、堕落物件等因素有关。有意见认为,面对赶工的压力,业界往往忽视安全措施,若能加强安全措施,大部分意外皆可避免。
院线大战客厅沙发:香港戏院如何扳回一局
院线大战客厅沙发:香港戏院如何扳回一局
从新冠肺炎疫情至今,香港电影院经历了一波关门大潮。截至2024年4月30日,累计16间戏院结业,其中包括UA连锁影院在2021年3月全线结业。这波关门大潮似乎还远未结束,上月12日MCL Cinema Plus+荷里活广场戏院宣布结业,而以播放小众电影知名的高先电影院,也传出将于租约期满后结束营业。
特朗普2.0启幕
特朗普2.0启幕
特朗普即将再次上任美国总统,特朗普2.0时代即将开始。 特朗普2.0计划包括减税、减少贸易逆差及限制移民。特朗普希望延续低税率,并在“2025计划”中提出新的税率结构,却可能加剧收入不均。陆炎辉博士指出,特朗普的减税政策虽能刺激经济,但也将增加国债,并可能影响社会福利支出,进一步挑战政府运作。
香港需要支出有方,以应对老龄化带来的财政压力
香港需要支出有方,以应对老龄化带来的财政压力
香港政府预计本年度将出现近1000亿港元的赤字,这一数字远高于去年二月最初预测的481亿港元。国际货币基金组织(IMF)强调,香港需要增强税收以应对与人口老龄化相关的支出压力。 港大经管学院副院长及亚洲环球研究所总监邓希炜教授支持通过提高税率或扩大税基来解决可能出现的结构性财政赤字问题。他指出政府官员存在一种“心理陷阱”,认为提高税收会损害生产力,同时指出新加坡实施商品及服务税(GST)并未在中期内影响生产力。他表示:“扩大税基,特别是引入销售税,将是一条单行道”,强调随著政府开支增长,需寻求可持续的收入来源。