学术论文
研究焦点
全球学者
知识转移
龙虎山下
媒体报导
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.

More than the Quantity: The Value of Editorial Reviews for a User-Generated Content Platform
More than the Quantity: The Value of Editorial Reviews for a User-Generated Content Platform
We investigate an editorial review program for which a review platform supplements user reviews with editorial ones written by professional writers. Specifically, we examine whether and how editorial reviews influence subsequent user reviews (reviews written by noneditor reviewers). A quasiexperiment conducted on a leading review platform in Asia, based on several econometric and natural language processing techniques, yields empirical evidence of an overall positive effect of editorial reviews on subsequent user reviews from the platform’s perspective. First, more reviews are provided for restaurants that receive editorial reviews. In addition, these reviews discuss substantive topics while also including a discussion on other topics, leading to a net increase in content length and variety. They also are more neutral in sentiment and are associated with lower rating valences. Further analysis of the mechanism reveals that the subsequent user reviews of the restaurants that receive editorial reviews become more similar to the editorial reviews in regard to topics, sentiment/rating, length, and readability, indicating a herding effect in how to write a review as the main driver of the change in the subsequent reviews. We further empirically isolate this herding effect among long-time reviewers. The findings suggest that review platforms could use an editorial review program not only to boost the quantitative aspect of user reviews but also, to manage the qualitative aspect as well.

Dark Market Share around Earnings Announcements and Speed of Resolution of Investor Disagreement
Dark Market Share around Earnings Announcements and Speed of Resolution of Investor Disagreement
This study examines how the market share of dark venues changes at earnings announcements. Our analysis shows a statistically significant increase in dark market share in the weeks prior to, during, and following the earnings announcement. We also predict and find evidence that increases in dark market share around earnings announcements are higher for firms with high quality accounting information. In addition, we find a positive relation between the change in dark market share and the speed of resolution of investor disagreement-a key dimension of informational efficiency, which suggests that dark trading is associated with an improvement in market quality. How market fragmentation changes around news events, the role accounting information plays in market fragmentation, and how changes in market fragmentation relate to market quality can help provide insights to securities regulators.

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.

Purple Haze, All in My Brain
Purple Haze, All in My Brain
Jian Zhang from the HKU Business School along with authors from the Shanghai Advanced Institute of Finance at Shanghai Jiao Tong University, INSEAD in Singapore and the PBC School of Finance at Tsinghua University, helped to advance understanding of this phenomenon in their recent paper, called Air Pollution, Behavioral Bias, and the Disposition Effect in China. The team studied how air pollution can affect mental health by intensifying a certain type of cognitive bias observed in financial markets.
Future Anxiety – How COVID-19 Led People to Save More Money
Future Anxiety – How COVID-19 Led People to Save More Money
Take the recent study by Chen Lin and Mingzhu Tai from the HKU Business School, conducted with collaborators from the University of California, Berkeley and the Chinese University of Hong Kong. Their paper addressed a fundamental worry for almost everyone during the pandemic: Money. Specifically, they examined how people in the U.S. saved money in response to COVID-19.
教学和研究就是互相启发的过程 – 范亭亭博士
教学和研究就是互相启发的过程 – 范亭亭博士
求知若渴的范亭亭博士立志以大数据和数理模型探索和解释消费者的行为。在2021年12月,范博士加入我们学院任职市场学高级讲师。
以跨学科知识促进数码创新及转型 – 方钰麟教授
以跨学科知识促进数码创新及转型 – 方钰麟教授
方钰麟教授是一名资深的学者、商业个案作者、资讯科技顾问,同时亦在顶尖的国际期刊担任编辑。看中了港大经管学院拥有成为学界超新星的潜力,方教授有意贡献自己在数码创新和转型方面的知识,助学院更上一层楼。于2021年9月正式加入港大后,方教授将会领导我院新成立的数字经济和创新研究所。
在资讯科技的前沿上推陈出新 – 李哲鹏博士
在资讯科技的前沿上推陈出新 – 李哲鹏博士
「与其为个人创造财富,不如为世界创造改变」是李哲鹏博士的格言。李博士一直致力透过学术研究推动资讯科技和机器学习的创新和进步。
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。

美国重陷债务上限泥沼
美国重陷债务上限泥沼
过去半个世纪以来,除了金融危机和新冠肺炎期间,美国联邦政府的开支和收入占GDP的比例都相对稳定,平均分别为20.8% 和17.3%。这两者的差距即为财政赤字,由政府发债填补。
通关路上 蓄势复常
通关路上 蓄势复常
香港特区实施长达3年的严控新冠疫情措施后,随着2022年过去而成为历史。鉴于去年本地经济表现逊于预期,加上环球局势不明朗等因素,特区政府将全年实质本地生产总值(GDP)下调至负3.2%。
胶袋加价够唔够辣
胶袋加价够唔够辣
从5角到1元,虽然价格翻倍,但有市民认为加幅不痛不痒,对制止滥用塑胶购物袋难以奏效。早前也有议员在立法会会议上提出加价至2元,但其决议案被否决。到底应该如何对塑胶购物袋收费,才能达到保护环境的目标呢?
美国重陷债务上限泥沼
美国重陷债务上限泥沼
过去半个世纪以来,除了金融危机和新冠肺炎期间,美国联邦政府的开支和收入占GDP的比例都相对稳定,平均分别为20.8% 和17.3%。这两者的差距即为财政赤字,由政府发债填补。
Exodus of Wealthy Chinese Accelerates With End of Covid Zero
Exodus of Wealthy Chinese Accelerates With End of Covid Zero
“If several million people go out and travel this year, that may still amount to tens of billions of dollars of downward pressure on the foreign exchange reserves that China has,” said Chen Zhiwu, chair professor of finance at Hong Kong University.

通关路上 蓄势复常
通关路上 蓄势复常
香港特区实施长达3年的严控新冠疫情措施后,随着2022年过去而成为历史。鉴于去年本地经济表现逊于预期,加上环球局势不明朗等因素,特区政府将全年实质本地生产总值(GDP)下调至负3.2%。