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- 2022
- Working Paper
Retail Investors’ Contrarian Behavior Around News and the Momentum Effect
By: Cheng (Patrick) Luo, Enrichetta Ravina, Marco Sammon and Luis M. Viceira
Using a large panel of U.S. brokerage accounts trades and positions, we show that a large fraction of retail investors trade as contrarians after large earnings surprises, especially for loser stocks, and that such contrarian trading contributes to post earnings...
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- Article
Multitasking While Driving: A Time Use Study of Commuting Knowledge Workers to Assess Current and Future Uses
By: Thomaz Teodorovicz, Andrew L. Kun, Raffaella Sadun and Orit Shaer
Commuting has enormous impact on individuals, families, organizations, and society. Advances in vehicle automation may help workers employ the time spent commuting in productive work-tasks or wellbeing activities. To achieve this goal, however, we need to develop a...
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- June 2022
- Article
The Welfare Effects of Peer Entry in the Accommodation Market: The Case of Airbnb and the Accommodation Industry
By: Chiara Farronato and Andrey Fradkin
We study the effects of enabling peer supply through Airbnb in the accommodation industry. We present a model of competition between flexible and dedicated sellers—peer hosts and hotels—who provide differentiated products. We estimate this model using data from major...
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- May 2022 (Revised June 2022)
- Case
Proposing to Redesign a Global Investment Bank
By: David G. Fubini
A major, NYC-based, global investment bank is looking to rethink its Systems strategy amid a rapidly evolving digital landscape. Your firm has served the client across most of its major geographies on a range of substantial Systems and IT efforts, but is facing...
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- May 2022
- Case
What to Propose?
By: David G. Fubini
Two audit and financial services firms, one of which your consulting firm has supported extensively, have merged to create one of the largest audit firms in the world. The audit firm's Executive Team has requested proposals aimed at re-evaluating their internal...
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- May 2022
- Case
The NFL’s $110-Billion Media Rights Deals
By: Anita Elberse and Elizabeth Warner
On March 18, 2021, Brian Rolapp, chief media and business officer at the National Football League (NFL) presented the results of a months-long effort to renegotiate rights deals with the NFL’s current partners in television—the media conglomerates behind the networks...
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- May 2022
- Case
Executive Decision-Making at Zola
By: Amy C. Edmondson and Michael Roberto
In April 2020, Rachel Jarrett, President and COO of wedding technology company Zola, called a meeting with the organization’s key decision-makers. The company had previously launched three business expansions: a vendor marketplace, a wedding apparel division, and a...
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- May 2022
- Article
Can Gambling Increase Savings? Empirical Evidence on Prize-Linked Savings Accounts
By: Shawn A. Cole, Benjamin Iverson and P. Tufano
This paper studies the adoption and impact of prize-linked savings (PLS) accounts, which offer lottery-like payouts to individual account holders in lieu of interest. Using microlevel data from a bank in South Africa, we show that PLS is attractive to a broad group of...
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- May 2022
- Article
Complex Disclosure
By: Ginger Zhe Jin, Michael Luca and Daniel Martin
We present evidence that unnecessarily complex disclosure can result from strategic incentives to shroud information. In our lab experiment, senders are required to report their private information truthfully, but can choose how complex to make their reports. We find...
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- Article
Present Bias Causes and Then Dissipates Auto-enrollment Savings Effects
By: John Beshears, James J. Choi, David Laibson and Peter Maxted
Present bias causes procrastination, which leads households to stick with auto-enrollment defaults. However, present bias also engenders overconsumption. Separation from each employer generates a rollover of 401(k) balances to an individual retirement account (IRA)...
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- 2022
- Article
Probing GNN Explainers: A Rigorous Theoretical and Empirical Analysis of GNN Explanation Methods.
By: Chirag Agarwal, Marinka Zitnik and Himabindu Lakkaraju
As Graph Neural Networks (GNNs) are increasingly employed in real-world applications, it becomes critical to ensure that the stakeholders understand the rationale behind their predictions. While several GNN explanation methods have been proposed recently, there has...
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- April 2022
- Case
Pear Venture Capital
By: Jo Tango and Alys Ferragamo
Keith Bender, Principal at Pear Venture Capital, is working over the weekend to prepare for a Monday morning investment meeting. He has three startup pitch decks in front of him, and he must choose one to recommend at the meeting. He finds that each company has its...
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- April 6, 2022
- Article
5 Principles of Purposeful Leadership
By: Hubert Joly
The traditional model of the leader-hero who saves the day, knows it all, is the smartest person in the room, and is too often driven by power, fame, glory, or money is not appropriate in today’s environment. People today expect a different kind of leader. While each...
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- April 2022
- Article
Going Out or Opting Out? Capital, Political Vulnerability, and the State in China's Outward Investment
By: Meg Rithmire
How do state-business relations interact with outward investment in authoritarian regimes? This paper examines this question in the context of China’s rapid transformation into a major capital exporter. While most political economy scholarship focuses on firms’...
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- March 2022
- Case
Proximie: Using XR Technology to Create Borderless Operating Rooms
By: Ariel D. Stern and Alpana Thapar
In mid-January 2022, Nadine Hachach-Haram, founder and CEO of Proximie, was thinking about the company’s growth plans. Launched in 2016, Proximie was a platform that enabled clinicians, proctors, and medical device company personnel to be virtually present in operating...
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- 2022
- Working Paper
The Credit Rating Agency Market in Africa
By: Saveshen Pillay and Anywhere Sikochi
In this paper, we present the credit rating agency market on the continent of Africa as a potential research setting for accounting-related research. Largely unexplored in prior literature, Africa-based rating agencies provide access to information about a broad range...
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Keywords:
Credit Rating;
Credit Rating Agencies;
Regulation;
Conflict Of Interest;
Credit;
Capital;
Africa
- March 2022 (Revised April 2022)
- Teaching Note
Spotify's Audio-First Strategy: Leading the Podcasting Market
By: Hong Luo and Carol Lin
Teaching Note for HBS Case No. 721-439. Within 15 years, CEO Daniel Ek had led Spotify from an ambitious startup to a multi-billion dollar company that had transformed the music industry. As part of Spotify’s next phase of growth, the platform would invest heavily in...
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- March 2022 (Revised March 2022)
- Module Note
Managing Customers in the Digital Era
By: Eva Ascarza
The last two decades have witnessed incredible technological advances that have transformed the ways customers connect with each other and enabled firms to track customers in multiple ways through various channels to personalize (and automize) their offerings at...
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- March 2022
- Case
MTN: Unlocking Value While Driving Socioeconomic Progress
By: Benjamin C. Esty, Pippa Tubman Armerding and Dilyana Karadzhova Botha
On March 10, 2021, Ralph Mupita the new CEO of MTN Group, Africa largest telecommunications company, presented the group’s 2020 annual results and unveiled a new strategy to “drive growth and unlock value.” Despite MTN’s leadership in most of its markets, the company’s...
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- Article
Advancing Digital Health Applications: Priorities for Innovation in Real-World Evidence Generation
By: Ariel Dora Stern, Jan Brönneke, Jörg F Debatin, Julia Hagen, Henrik Matthies, Smit Patel, Ieuan Clay, Bjoern Eskofier, Annika Herr, Kurt Hoeller, Ashley Jaksa, Daniel B Kramer, Mattias Kyhlstedt, Katherine T Lofgren, Nirosha Mahendraratnam, Holger Muehlan, Simon Reif, Lars Riedemann and Jennifer C Goldsack
In 2019, Germany passed the Digital Healthcare Act, which, among other things, created a “Fast-Track” regulatory and reimbursement pathway for digital health applications in the German market. The pathway explicitly provides for flexibility in how researchers can...
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