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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.
教學和研究就是互相啟發的過程 – 范亭亭博士
教學和研究就是互相啟發的過程 – 范亭亭博士
求知若渴的范亭亭博士立志以大數據和數理模型探索和解釋消費者的行為。在2021年12月,范博士加入我們學院任職市場學高級講師。
以跨學科知識促進數碼創新及轉型 – 方鈺麟教授
以跨學科知識促進數碼創新及轉型 – 方鈺麟教授
方鈺麟教授是一名資深的學者、商業個案作者、資訊科技顧問,同時亦在頂尖的國際期刊擔任編輯。看中了港大經管學院擁有成為學界超新星的潛力,方教授有意貢獻自己在數碼創新和轉型方面的知識,助學院更上一層樓。於2021年9月正式加入港大後,方教授將會領導我院新成立的數字經濟和創新研究所。
在資訊科技的前沿上推陳出新 – 李哲鵬博士
在資訊科技的前沿上推陳出新 – 李哲鵬博士
「與其為個人創造財富,不如為世界創造改變」是李哲鵬博士的格言。李博士一直致力透過學術研究推動資訊科技和機器學習的創新和進步。
研究企業之間的協調行為 – 郝宇博士
研究企業之間的協調行為 – 郝宇博士
計算機編程聽起來好像和經濟風馬牛不相及,但擁有出色的編程技術,不但能幫助個人進行經濟學學術研究,更能助你在商界捉緊更多就業機會。

疫況愈下 「清零」何價?
疫況愈下 「清零」何價?
香港在連續數月「清零」後,在社區出現Omicron變種病毒個案,爆發第五波疫情,特區政府因而重新推出表列處所須關閉等社交距離防疫措施,並取消多項大型活動。
構想虛擬貨幣的未來 – 游楊博士
構想虛擬貨幣的未來 – 游楊博士
作為教師,在鼓勵同學努力學習之餘,我亦會主動了解本地市場運作以及邀請僱主來到課堂分享業界經驗。

美國重陷債務上限泥沼
美國重陷債務上限泥沼
過去半個世紀以來,除了金融危機和新冠肺炎期間,美國聯邦政府的開支和收入佔GDP的比例都相對穩定,平均分別為20.8% 和17.3%。這兩者的差距即為財政赤字,由政府發債填補。
通關路上 蓄勢復常
通關路上 蓄勢復常
香港特區實施長達3年的嚴控新冠疫情措施後,隨着2022年過去而成為歷史。鑑於去年本地經濟表現遜於預期,加上環球局勢不明朗等因素,特區政府將全年實質本地生產總值(GDP)下調至負3.2%。
膠袋加價夠唔夠辣
膠袋加價夠唔夠辣
從5角到1元,雖然價格翻倍,但有市民認為加幅不痛不癢,對制止濫用塑膠購物袋難以奏效。早前也有議員在立法會會議上提出加價至2元,但其決議案被否決。到底應該如何對塑膠購物袋收費,才能達到保護環境的目標呢?
美國重陷債務上限泥沼
美國重陷債務上限泥沼
過去半個世紀以來,除了金融危機和新冠肺炎期間,美國聯邦政府的開支和收入佔GDP的比例都相對穩定,平均分別為20.8% 和17.3%。這兩者的差距即為財政赤字,由政府發債填補。
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.

通關路上 蓄勢復常
通關路上 蓄勢復常
香港特區實施長達3年的嚴控新冠疫情措施後,隨着2022年過去而成為歷史。鑑於去年本地經濟表現遜於預期,加上環球局勢不明朗等因素,特區政府將全年實質本地生產總值(GDP)下調至負3.2%。