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- All HBS Web
(2,184)
- Faculty Publications (376)
- 2024
- Working Paper
What Drives Variation in Investor Portfolios? Estimating the Roles of Beliefs and Risk Preferences
By: Mark Egan, Alexander MacKay and Hanbin Yang
We present an empirical model of portfolio choice that allows for the nonparametric estimation of investors' (subjective) expectations and risk preferences. Utilizing a comprehensive dataset of 401(k) plans from 2009 through 2019, we explore heterogeneity in asset... View Details
Keywords: Stock Market Expectations; Demand Estimation; Retirement Planning; Defined Contribution Retirement Plan; 401 (K); Finance; Investment Portfolio; Investment; Retirement; Behavioral Finance; Financial Services Industry; United States
Egan, Mark, Alexander MacKay, and Hanbin Yang. "What Drives Variation in Investor Portfolios? Estimating the Roles of Beliefs and Risk Preferences." Harvard Business School Working Paper, No. 22-044, December 2021. (Revisions Requested at the Review of Financial Studies. Revised April 2024. Direct download. NBER Working Paper Series, No. 29604, December 2021)
- November 2021 (Revised November 2023)
- Case
Hitting Home: Amazon and Mary's Place
By: Paul M. Healy, Debora L. Spar and Amy Klopfenstein
In 2020, Amazon, the $386 billion online retail behemoth, built an eight-story shelter for women and families experiencing homelessness on its expanding headquarters in Seattle, Washington. The shelter, operated in partnership with a non-profit organization known as... View Details
Keywords: Business Ethics; Homelessness; Business And Society; Corporate Social Responsibility and Impact; Social Issues; Corporate Accountability; Urban Development; Society; Information Technology; Ethics; Technology Industry; Seattle; United States; North America
Healy, Paul M., Debora L. Spar, and Amy Klopfenstein. "Hitting Home: Amazon and Mary's Place." Harvard Business School Case 122-017, November 2021. (Revised November 2023.)
- 2021
- Working Paper
Winner Takes All? Tech Clusters, Population Centers, and the Spatial Transformation of U.S. Invention
By: Brad Chattergoon and William R. Kerr
U.S. invention has become increasingly concentrated around major tech centers since the 1970s, with implications for how much cities across the country share in concomitant local benefits. Is invention becoming a winner-takes-all race? We explore the rising spatial... View Details
Keywords: Invention; Innovation; Artificial Intelligence; Clusters; Agglomeration; Innovation and Invention; Patents; Applications and Software; Industry Clusters; United States
Chattergoon, Brad, and William R. Kerr. "Winner Takes All? Tech Clusters, Population Centers, and the Spatial Transformation of U.S. Invention." Harvard Business School Working Paper, No. 22-027, October 2021. (NBER Working Paper Series, No. 29456, November 2021.)
- November 2021 (Revised January 2022)
- Case
Scott Tucker (A): Race to the Top
By: Aiyesha Dey and Amram Migdal
The case tells the story of the rise and fall of Scott Tucker, an entrepreneur, businessman, passionate race car driver, competitor, and owner of a professional racing team. From 1997 to 2012, Tucker built a nationwide network of payday lending businesses, becoming a... View Details
Keywords: Business Ventures; Crime and Corruption; Ethics; Fairness; Financing and Loans; Personal Finance; Governance; Corporate Accountability; Corporate Governance; Governance Compliance; Governance Controls; Financial Services Industry; United States
Dey, Aiyesha, and Amram Migdal. "Scott Tucker (A): Race to the Top." Harvard Business School Case 122-009, November 2021. (Revised January 2022.)
- November 2021 (Revised January 2022)
- Supplement
Scott Tucker (B): The Feds Catch Up
By: Aiyesha Dey and Amram Migdal
The case tells the story of the rise and fall of Scott Tucker, an entrepreneur, businessman, passionate race car driver, competitor, and owner of a professional racing team. From 1997 to 2012, Tucker built a nationwide network of payday lending businesses, becoming a... View Details
Keywords: Business Ventures; Crime and Corruption; Ethics; Fairness; Financing and Loans; Personal Finance; Governance; Corporate Accountability; Corporate Governance; Governance Compliance; Governance Controls; Financial Services Industry; United States
Dey, Aiyesha, and Amram Migdal. "Scott Tucker (B): The Feds Catch Up." Harvard Business School Supplement 122-032, November 2021. (Revised January 2022.)
- November 2021 (Revised December 2021)
- Supplement
PittaRosso (B): Human and Machine Learning
By: Ayelet Israeli
This case supplements the "PittaRosso: Artificial Intelligence-Driven Pricing and Promotion" case, and provides major highlights on what happened at the company since the first case. View Details
Keywords: Artificial Intelligence; Pricing; Pricing Algorithm; Pricing Decisions; Pricing Strategy; Pricing Structure; Promotion; Promotions; Online Marketing; Data-driven Decision-making; Data-driven Management; Retail; Retail Analytics; Price; Advertising Campaigns; Analytics and Data Science; Analysis; Digital Marketing; Budgets and Budgeting; Marketing Strategy; Marketing; Transformation; Decision Making; AI and Machine Learning; Retail Industry; Italy
Israeli, Ayelet. "PittaRosso (B): Human and Machine Learning." Harvard Business School Supplement 522-047, November 2021. (Revised December 2021.)
- November 2021
- Article
Determining Variable Costs in the Acute Urolithiasis Cycle of Care Through Time-driven Activity-based Costing
By: Tyler R. McClintock, David F. Friedlander, Aiden Y. Feng, Mahek A. Shah, Daniel J. Pallin, Steven L. Chang, Angela M. Bader, Thomas W. Feeley, Robert S. Kaplan and George E. Haleblian
Objective. To characterize full cycle of care costs for managing an acute ureteral stone using time-driven activity-based costing.
Methods. We defined all phases of care for patients presenting with an acute ureteral stone and built an... View Details
Methods. We defined all phases of care for patients presenting with an acute ureteral stone and built an... View Details
Keywords: Time-Driven Activity-Based Costing; Health Care and Treatment; Cost; Activity Based Costing and Management
McClintock, Tyler R., David F. Friedlander, Aiden Y. Feng, Mahek A. Shah, Daniel J. Pallin, Steven L. Chang, Angela M. Bader, Thomas W. Feeley, Robert S. Kaplan, and George E. Haleblian. "Determining Variable Costs in the Acute Urolithiasis Cycle of Care Through Time-driven Activity-based Costing." Urology 157 (November 2021): 107–113.
- October 2021 (Revised March 2022)
- Supplement
PittaRosso: Artificial Intelligence-Driven Pricing and Promotion
By: Ayelet Israeli and Fabrizio Fantini
PittaRosso, a traditional Italian shoe retailer, is implementing an AI system to provide pricing and promotion recommendations. The system allows them to implement changes that would affect both the top of funnel and bottom of funnel activities for the company: once... View Details
Keywords: Artificial Intelligence; Pricing; Pricing Algorithm; Pricing Decisions; Pricing Strategy; Pricing Structure; Promotion; Promotions; Online Marketing; Data-driven Decision-making; Data-driven Management; Retail; Retail Analytics; Price; Advertising Campaigns; Analytics and Data Science; Analysis; Digital Marketing; Budgets and Budgeting; Marketing Strategy; Marketing; Transformation; Decision Making; Retail Industry; Italy
- October 2021 (Revised June 2022)
- Case
PittaRosso: Artificial Intelligence-Driven Pricing and Promotion
By: Ayelet Israeli
PittaRosso, a traditional Italian shoe retailer, is implementing an AI system to provide pricing and promotion recommendations. The system allows them to implement changes that would affect both the top of funnel and bottom of funnel activities for the company: once... View Details
Keywords: Artificial Intelligence; Pricing; Pricing Algorithm; Pricing Decisions; Pricing Strategy; Pricing Structure; Promotion; Promotions; Online Marketing; Data-driven Decision-making; Data-driven Management; Retail; Retail Analytics; AI; Price; Advertising Campaigns; Analytics and Data Science; Analysis; Digital Marketing; Budgets and Budgeting; Marketing Strategy; Marketing; Transformation; Decision Making; AI and Machine Learning; Retail Industry; Italy
Israeli, Ayelet. "PittaRosso: Artificial Intelligence-Driven Pricing and Promotion." Harvard Business School Case 522-046, October 2021. (Revised June 2022.)
- 2021
- Book
The Power of Trust: How Companies Build It, Lose It, Regain It
By: Sandra J. Sucher and Shalene Gupta
Trust is the most powerful force underlying the success of every business. Yet it can be shattered in an instant, with a devastating impact on a company’s market cap and reputation. How to build and sustain trust requires fresh insight into why customers, employees,... View Details
Keywords: Power; Corporate Culture; Future Of Work; Innovation; Technology Strategy; Automation; Stakeholder Engagement; Employee Attitude; Customer Behavior; Shareholder Value; Government And Business; Impact Investing; Corporate Change And Sustainability; Trust; Power and Influence; Globalization; Leadership; Organizational Culture; Innovation and Invention; Human Resources; Information Technology; Strategy; Corporate Accountability; Asia; Europe; South America; Middle East; North and Central America
Sucher, Sandra J., and Shalene Gupta. The Power of Trust: How Companies Build It, Lose It, Regain It. New York: PublicAffairs, 2021.
- July 2021 (Revised July 2022)
- Case
Brigham & Women's Hospital: Using Patient Reported Outcomes to Improve Breast Cancer Care
By: Robert S. Kaplan, Navraj S. Nagra and Syed S. Shehab
Dr. Andrea Pusic, breast cancer reconstruction surgeon, wants to extend outcomes measurement beyond traditional surgical metrics of infections, complications, and survival rates. The case describes her development of a new mobile phone app, which collects patients’... View Details
Keywords: Health Care and Treatment; Outcome or Result; Cost Management; Activity Based Costing and Management; Mobile and Wireless Technology; Health Testing and Trials; Surveys; Health Industry; Boston
Kaplan, Robert S., Navraj S. Nagra, and Syed S. Shehab. "Brigham & Women's Hospital: Using Patient Reported Outcomes to Improve Breast Cancer Care." Harvard Business School Case 122-010, July 2021. (Revised July 2022.)
- July 2021
- Article
Information Transparency, Multihoming, and Platform Competition: A Natural Experiment in the Daily Deals Market
By: Hui Li and Feng Zhu
Platform competition is shaped by the likelihood of multi-homing (i.e., complementors or consumers adopt more than one platform). To take advantage of multi-homing, platform firms often attempt to motivate their rivals’ high-performing complementors to adopt their own... View Details
Keywords: Platform Competition; Multi-homing; Information Transparency; Daily Deals; Groupon; LivingSocial; Digital Platforms; Information; Competition
Li, Hui, and Feng Zhu. "Information Transparency, Multihoming, and Platform Competition: A Natural Experiment in the Daily Deals Market." Management Science 67, no. 7 (July 2021): 4384–4407.
- July 2021
- Article
Material Sustainability Information and Stock Price Informativeness
By: Jody Grewal, Clarissa Hauptmann and George Serafeim
As part of the SEC’s revision of Regulation S-K, many investors proposed the mandatory disclosure of sustainability information in the form of environmental, social, and governance (ESG) data. However, progress is contingent on collecting evidence regarding which... View Details
Keywords: Voluntary Disclosure; Accounting Standards; Sustainability; Nonfinancial Information; Corporate Social Responsibility; Stock Price Informativeness; Synchronicity; Environmental Sustainability; Corporate Disclosure; Corporate Accountability; Stocks; Price; Corporate Social Responsibility and Impact; Accounting; Standards
Grewal, Jody, Clarissa Hauptmann, and George Serafeim. "Material Sustainability Information and Stock Price Informativeness." Journal of Business Ethics 171, no. 3 (July 2021): 513–544.
- July–August 2021
- Article
SPACs: What You Need to Know
By: Max Bazerman and Paresh Patel
Special purpose acquisition companies, or SPACs, have been around in various forms for decades, but during the past two years they’ve taken off in the United States. In 2019, 59 were created, with $13 billion invested; in 2020, 247 were created, with $80 billion... View Details
Keywords: Special Purpose Acquisition Companies; SPACs; Mergers and Acquisitions; Going Public; Investment
Bazerman, Max, and Paresh Patel. "SPACs: What You Need to Know." Harvard Business Review 99, no. 4 (July–August 2021): 102–111.
- 2021
- Chapter
Towards a Unified Framework for Fair and Stable Graph Representation Learning
By: Chirag Agarwal, Himabindu Lakkaraju and Marinka Zitnik
As the representations output by Graph Neural Networks (GNNs) are increasingly employed in real-world applications, it becomes important to ensure that these representations are fair and stable. In this work, we establish a key connection between counterfactual... View Details
Agarwal, Chirag, Himabindu Lakkaraju, and Marinka Zitnik. "Towards a Unified Framework for Fair and Stable Graph Representation Learning." In Proceedings of the 37th Conference on Uncertainty in Artificial Intelligence, edited by Cassio de Campos and Marloes H. Maathuis, 2114–2124. AUAI Press, 2021.
- 2021
- Working Paper
Accounting for Product Impact in the Oil and Gas Industry
By: Katie Panella, George Serafeim and Katie Trinh
We apply the product impact measurement framework of the Impact-Weighted Accounts Initiative (IWAI) in two competitor companies within the oil and gas industry. We design a monetization methodology that allows us to calculate monetary product impact estimates of... View Details
Keywords: Product Innovation; Impact; Impact Investing; Impact Measurement; ESG; ESG (Environmental, Social, Governance) Performance; ESG Ratings; Social Corporate Responsibility; Corporate Social Responsibility; Social Impact; Oil; Oil & Gas; Oil And Gas; IWAI; Impact-Weighted Accounts; Product Design; Product Positioning; Society; Environmental Sustainability; Corporate Social Responsibility and Impact; Product
Panella, Katie, George Serafeim, and Katie Trinh. "Accounting for Product Impact in the Oil and Gas Industry." Harvard Business School Working Paper, No. 21-140, June 2021.
- 2021
- Working Paper
Accounting for Product Impact in the Pharmaceuticals Industry
By: Amanda Rischbieth, George Serafeim and Katie Trinh
We apply the product impact measurement framework of the Impact-Weighted Accounts Initiative (IWAI) in two competitor companies within the pharmaceuticals industry. We design a monetization methodology that allows us to calculate monetary impact estimates of accessible... View Details
Keywords: Product Innovation; Impact; Impact Investing; Impact Measurement; ESG; ESG (Environmental, Social, Governance) Performance; ESG Ratings; Social Corporate Responsibility; Corporate Social Responsibility; Social Impact; Pharmaceutical Companies; Pharmaceuticals; IWAI; Product Design; Product Positioning; Society; Environmental Sustainability; Corporate Social Responsibility and Impact; Product; Safety; Pharmaceutical Industry
Rischbieth, Amanda, George Serafeim, and Katie Trinh. "Accounting for Product Impact in the Pharmaceuticals Industry." Harvard Business School Working Paper, No. 21-139, June 2021.
- 2021
- Working Paper
Accounting for Product Impact in the Interactive Media and Services Industry
By: DG Park, George Serafeim and Katie Trinh
We apply the product impact measurement framework of the Impact-Weighted Accounts Initiative (IWAI) in two competitor companies within the interactive media and services industry. We design a monetization methodology that allows us to calculate monetary impact... View Details
Keywords: Product Innovation; Impact; Impact Investing; Impact Measurement; ESG; ESG (Environmental, Social, Governance) Performance; ESG Ratings; Social Corporate Responsibility; Corporate Social Responsibility; Social Impact; Product Design; Product Positioning; Society; Product; Environmental Sustainability; Measurement and Metrics; Framework; Corporate Social Responsibility and Impact; Social Media; Technology Industry
Park, DG, George Serafeim, and Katie Trinh. "Accounting for Product Impact in the Interactive Media and Services Industry." Harvard Business School Working Paper, No. 21-134, June 2021.
- June 2021 (Revised November 2024)
- Case
MicroStrategy: Accounting for Cryptocurrency
By: Jonas Heese and Annelena Lobb
On February 15, 2021, Alina Moss, an analyst who covered the technology company MicroStrategy, pondered a rise in MicroStrategy’s share price. Moss had dialed into the company earnings call. When it ended, Moss had more questions than answers. MicroStrategy had... View Details
Keywords: Cryptocurrency; Share Price; Electronic Commerce; Intangible Assets; Assets; Accounting; Financial Statements; Financial Management; Financial Reporting; Analytics and Data Science; E-commerce
Heese, Jonas, and Annelena Lobb. "MicroStrategy: Accounting for Cryptocurrency." Harvard Business School Case 121-066, June 2021. (Revised November 2024.)
- Article
Does Observability Amplify Sensitivity to Moral Frames? Evaluating a Reputation-Based Account of Moral Preferences
By: Valerio Capraro, Jillian J. Jordan and Ben Tappin
A growing body of work suggests that people are sensitive to moral framing in economic games involving prosociality, suggesting that people hold moral preferences for doing the “right thing”. What gives rise to these preferences? Here, we evaluate the explanatory power... View Details
Keywords: Moral Preferences; Moral Frames; Observability; Trustworthiness; Trust Game; Trade-off Game; Moral Sensibility; Reputation; Behavior; Trust
Capraro, Valerio, Jillian J. Jordan, and Ben Tappin. "Does Observability Amplify Sensitivity to Moral Frames? Evaluating a Reputation-Based Account of Moral Preferences." Journal of Experimental Social Psychology 94 (May 2021).