Publications
Publications
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- All HBS Web
(2,208)
- Faculty Publications (371)
- 2022
- Working Paper
Statistical Inference for Heterogeneous Treatment Effects Discovered by Generic Machine Learning in Randomized Experiments
By: Kosuke Imai and Michael Lingzhi Li
Researchers are increasingly turning to machine learning (ML) algorithms to investigate causal heterogeneity in randomized experiments. Despite their promise, ML algorithms may fail to accurately ascertain heterogeneous treatment effects under practical settings with... View Details
- 2022
- Article
Which Corporate ESG News Does the Market React To?
By: George Serafeim and Aaron Yoon
Using a dataset that classifies firm-level ESG news as positive and negative, we examine how stock prices react to different types of ESG news. We analyze 111,020 firm-day observations for 3,126 companies and find that prices react only to issues identified as... View Details
- March 2022
- Article
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
- 2022
- Working Paper
The Routledge Handbook of Digital Consumption, Chapter 41: The Internet’s Effects on Consumption: Useful, Harmful, Playful
By: John A. Deighton and Leora Kornfeld
This chapter considers how digital culture has changed over the past decade, as the internet has grown its scope and user base. Billions around the world connect daily to an ever-expanding set of applications. A framework for thinking about digital effects is offered:... View Details
- February 2022
- Case
Business Roundtable 2019 Statement: A New Paradigm or Business as Usual?
By: Charles C.Y. Wang and Amram Migdal
This note focuses on the antecedents of, reactions to, and clarifications about The Business Roundtable’s August 19, 2019, “Statement on the Purpose of a Corporation.” The note includes background information on corporate governance as practiced in the United States in... View Details
- 2022
- Working Paper
What Triggers National Stock Market Jumps?
By: Scott R. Baker, Nicholas Bloom, Steven J. Davis and Marco Sammon
We examine newspapers the day after major stock-market jumps to evaluate the proximate cause, geographic source, and clarity of these events from 1900 in the US, 1930 in the UK and 1980 in 12 other countries. We find four main results. First, the United States plays an... View Details
- January 2022
- Background Note
The Florange Law: Encouraging Long-Termism in Equity Markets?
By: Charles C.Y. Wang and Tonia Labruyere
This note provides background information on a French law (“the Florange law”) passed in 2014 that the French government said would encourage long-term shareholdings. The note describes the law, what led to it, the reactions it evoked, and similar initiatives in other... View Details
- January 2022 (Revised March 2022)
- Module Note
Analysis of Financial and Non-Financial Information for Forecasting Performance
This note describes the main themes and cases of a teaching module on the analysis of information from, and outside of, financial statements for forecasting firms’ future financial performance. The module’s pedagogical goal is to deepen students’ understanding of the... View Details
- January 2022 (Revised February 2022)
- Case
Introducing EVA at ISS: A Better Way to Evaluate CEO Performance and Compensation?
By: Jonas Heese, Charles C.Y. Wang and James Weber
In early 2019, Anthony Campagna, the global director of fundamental research at ISS EVA, a unit of the proxy advisory firm Institutional Shareholder Services (ISS), was preparing to release ISS's analyses of public company performance and CEO compensation ahead of Say... View Details
- February 2022
- Article
Client Concerns about Information Spillovers from Sharing Audit Partners
By: Jung Koo Kang, Clive Lennox and Vivek Pandey
We hypothesize that companies in the same product market avoid sharing the same audit partner when they are concerned about possible information spillovers. Consistent with our hypothesis, we find that product market rivals are less likely to share the same partner... View Details
- January 2022
- Article
Artificial Intelligence, Data-Driven Learning, and the Decentralized Structure of Platform Ecosystems
By: David R. Clough and Andy Wu
Gregory, Henfridsson, Kaganer, and Kyriakou (2020) highlight the important role of data and AI as strategic resources that platforms may use to enhance user value. However, their article overlooks a significant conceptual distinction: the installed base of... View Details
Keywords: Artificial Intelligence; Data Strategy; Ecosystem; Value Capture; Digital Platforms; Analytics and Data Science; Strategy; Learning; Value Creation; AI and Machine Learning; Information Technology Industry; Information Technology Industry; Information Technology Industry; Information Technology Industry
- 2022
- Working Paper
Rethinking Explainability as a Dialogue: A Practitioner's Perspective
By: Himabindu Lakkaraju, Dylan Slack, Yuxin Chen, Chenhao Tan and Sameer Singh
As practitioners increasingly deploy machine learning models in critical domains such as healthcare, finance, and policy, it becomes vital to ensure that domain experts function effectively alongside these models. Explainability is one way to bridge the gap between... View Details
- 2022
- Book
Ripe for Revolution: Building Socialism in the Third World
By: Jeremy Friedman
A historical account of ideology in the Global South as the postwar laboratory of socialism, its legacy following the Cold War, and the continuing influence of socialist ideas worldwide.
In the first decades after World War II, many newly independent... View Details
In the first decades after World War II, many newly independent... View Details
- Article
Core Earnings: New Data and Evidence
By: Ethan Rouen, Eric C. So and Charles C.Y. Wang
Using a novel dataset, we show that components of firms' GAAP earnings stemming from ancillary business activities or transitory shocks are significant in frequency and magnitude. These components have grown over time and are dispersed across various sections of the... View Details
- 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
- 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
- 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
- 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
- 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
- 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