• December 2023
• Case

TikTok: The Algorithm Will See You Now

By: Shikhar Ghosh and Shweta Bagai

In a world where attention is a scarce commodity, this case explores the meteoric rise of TikTok—an app that transformed from a niche platform for teens into the most visited domain by 2021—surpassing even Google. Its algorithm was a sophisticated mechanism for... View Details

Keywords: Social Media; Applications and Software; Disruptive Innovation; Business and Government Relations; International Relations; Cybersecurity; Culture; Technology Industry; China; United States; India

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Ghosh, Shikhar, and Shweta Bagai. "TikTok: The Algorithm Will See You Now." Harvard Business School Case 824-125, December 2023.

• 2025
• Working Paper

Enhancing Treatment Effect Prediction on Privacy-Protected Data: An Honest Post-Processing Approach

By: Ta-Wei Huang and Eva Ascarza

As firms increasingly rely on customer data for personalization, concerns over privacy and regulatory compliance have grown. Local Differential Privacy (LDP) offers strong individual-level protection by injecting noise into data before collection. While... View Details

Keywords: Targeted Intervention; Conditional Average Treatment Effect Estimation; Differential Privacy; Honest Estimation; Post-processing; Analytics and Data Science; Consumer Behavior; Marketing

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Huang, Ta-Wei, and Eva Ascarza. "Enhancing Treatment Effect Prediction on Privacy-Protected Data: An Honest Post-Processing Approach." Harvard Business School Working Paper, No. 24-034, December 2023. (Revised March 2025.)

• December 2023 (Revised February 2024)
• Case

21Seeds: Taking Shots at Breakout Growth

By: Elie Ofek, Julian De Freitas, Michael Moynihan and Nicole Tempest Keller

21Seeds, a female-founded flavor-infused tequila startup launched in 2019, had made inroads into the alcoholic beverage industry by focusing on an underserved consumer segment in spirits—women, primarily in their 30s and 40s, many of whom were moms—and by following a... View Details

Keywords: Mergers and Acquisitions; Business Startups; Growth and Development Strategy; Brands and Branding; Product Positioning; Distribution Channels; Sales; Food and Beverage Industry

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Ofek, Elie, Julian De Freitas, Michael Moynihan, and Nicole Tempest Keller. "21Seeds: Taking Shots at Breakout Growth." Harvard Business School Case 524-008, December 2023. (Revised February 2024.)

• November 2023
• Article

Knowledge About the Source of Emotion Predicts Emotion-Regulation Attempts, Strategies, and Perceived Emotion-Regulation Success

By: Yael Millgram, Matthew K. Nock, David D. Bailey and Amit Goldenberg

People’s ability to regulate emotions is crucial to healthy emotional functioning. One overlooked aspect in emotion-regulation research is that knowledge about the source of emotions can vary across situations and individuals, which could impact people’s ability to... View Details

Keywords: Emotions; Personal Characteristics; Well-being

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Millgram, Yael, Matthew K. Nock, David D. Bailey, and Amit Goldenberg. "Knowledge About the Source of Emotion Predicts Emotion-Regulation Attempts, Strategies, and Perceived Emotion-Regulation Success." Psychological Science 34, no. 11 (November 2023): 1244–1255.

• 2023
• Chapter

Malleability Interventions in Intergroup Relations

By: Smadar Cohen-Chen, Amit Goldenberg, James J. Gross and Eran Halperin

One important characteristic of intergroup relations and conflicts is the fact that toxic or violent intergroup relations are often associated with fixed and stable perceptions of various entities, including the ingroup (stable and positive), the outgroup (stable and... View Details

Keywords: Conflict and Resolution; Groups and Teams; Attitudes

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Cohen-Chen, Smadar, Amit Goldenberg, James J. Gross, and Eran Halperin. "Malleability Interventions in Intergroup Relations." Chap. 7 in Psychological Intergroup Interventions: Evidence-based Approaches to Improve Intergroup Relations, by Eran Halperin, Boaz Hameiri, and Rebecca Littman. Routledge, 2023.

• November–December 2023
• Article

Tax-Loss Harvesting with Cryptocurrencies

By: Lin William Cong, Wayne Landsman, Edward Maydew and Daniel Rabetti

We describe the taxation landscape in the cryptocurrency markets, especially concerning U.S. taxpayers, and examine how recent increases in tax scrutiny have led to changes in crypto investors' trading behavior. We argue conceptually and then empirically document that... View Details

Keywords: Cryptocurrency; Taxation; Governing Rules, Regulations, and Reforms; Financial Markets

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Cong, Lin William, Wayne Landsman, Edward Maydew, and Daniel Rabetti. "Tax-Loss Harvesting with Cryptocurrencies." Art. 101607. Journal of Accounting & Economics 76, nos. 2-3 (November–December 2023).

• December 2023
• Article

What Can Stockouts Tell Us About Inflation? Evidence from Online Micro Data

By: Alberto Cavallo and Oleksiy Kryvtsov

We use a detailed micro dataset on product availability and stockouts to construct a direct high-frequency measure of consumer product shortages during the 2020-2022 pandemic. We document a widespread multi-fold rise in stockouts in nearly all sectors early in the... View Details

Keywords: Prices; Stockouts; Inventories; Supply Disruptions; COVID-19 Pandemic; Supply Chain; Product; Demand and Consumers

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Cavallo, Alberto, and Oleksiy Kryvtsov. "What Can Stockouts Tell Us About Inflation? Evidence from Online Micro Data." Journal of International Economics 146 (December 2023).

• November 2023
• Case

Open Source Machine Learning at Google

By: Shane Greenstein, Martin Wattenberg, Fernanda B. Viégas, Daniel Yue and James Barnett

Set in early 2023, the case exposes students to the challenges of managing open source software at Google. The case focuses on the challenges for Alex Spinelli, Vice President of Product Management for Core Machine Learning. He must set priorities for Google’s efforts... View Details

Keywords: Decision Choices and Conditions; Technological Innovation; Open Source Distribution; Strategy; AI and Machine Learning; Applications and Software; Technology Industry; United States

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Greenstein, Shane, Martin Wattenberg, Fernanda B. Viégas, Daniel Yue, and James Barnett. "Open Source Machine Learning at Google." Harvard Business School Case 624-015, November 2023.

• November 2023 (Revised March 2024)
• Case

Infarm: Betting the (Indoor) Farm on Food Security

By: Elie Ofek

In the summer of 2023, the co-founders of Infarm, a controlled environment agriculture (CEA) company, were contemplating a major pivot going forward. While Infarm had successfully shown it could grow over 75 products—mainly herbs, leafy greens and mushrooms—in modular... View Details

Keywords: Plant-Based Agribusiness; Business Model; Market Entry and Exit; Science-Based Business; Business Strategy; Transition; Agriculture and Agribusiness Industry; Europe; North America; Toronto; Northeastern United States

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Ofek, Elie. "Infarm: Betting the (Indoor) Farm on Food Security." Harvard Business School Case 524-043, November 2023. (Revised March 2024.)

• November 2023
• Article

A Quantity-Driven Theory of Term Premia and Exchange Rates

By: Robin Greenwood, Samuel G. Hanson, Jeremy C. Stein and Adi Sunderam

We develop a model in which specialized bond investors must absorb shocks to the supply and demand for long-term bonds in two currencies. Since long-term bonds and foreign exchange are both exposed to unexpected movements in short-term interest rates, a shift in the... View Details

Keywords: Term Premium; Exchange Rate; Currency Exchange Rate; Bonds

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Greenwood, Robin, Samuel G. Hanson, Jeremy C. Stein, and Adi Sunderam. "A Quantity-Driven Theory of Term Premia and Exchange Rates." Quarterly Journal of Economics 138, no. 4 (November 2023): 2327–2389.

• October 2023
• Case

Houghton Mifflin Harcourt: A Curriculum Provider Puts Itself on the Hook for Student Outcomes

By: John J-H Kim, Derek C. M. van Bever, Michael Norris and Max Hancock

Jack Lynch, CEO of Houghton Mifflin Harcourt (HMH) since 2017, was leading the company’s transformation from a legacy textbook publisher to a digital-first student outcomes provider, which earned subscription revenue from digital products and curriculum. In 2023, HMH... View Details

Keywords: Edtech; Textbook; Publishing; Leading Change; Change Management; Transformation; Digital Transformation; Expansion; Business Strategy; Publishing Industry; Education Industry; United States

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Kim, John J-H, Derek C. M. van Bever, Michael Norris, and Max Hancock. "Houghton Mifflin Harcourt: A Curriculum Provider Puts Itself on the Hook for Student Outcomes." Harvard Business School Case 324-011, October 2023.

• October 26, 2023
• Article

How to Connect Employees to Your Company’s Purpose

By: Hubert Joly

We know making a noble corporate purpose — that is, one aimed at doing something good in the world — come to life is both important and hard. Emerging practices from leading companies show that the journey is not about top-down messaging. If anything, it’s about... View Details

Keywords: Mission and Purpose; Employee Relationship Management

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Joly, Hubert. "How to Connect Employees to Your Company’s Purpose." Harvard Business Review (website) (October 26, 2023).