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(573)
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Show Results For
- All HBS Web
(573)
- People (1)
- News (98)
- Research (362)
- Events (6)
- Multimedia (1)
- Faculty Publications (208)
- 2023
- Working Paper
An Experimental Design for Anytime-Valid Causal Inference on Multi-Armed Bandits
By: Biyonka Liang and Iavor I. Bojinov
Typically, multi-armed bandit (MAB) experiments are analyzed at the end of the study and thus require the analyst to specify a fixed sample size in advance. However, in many online learning applications, it is advantageous to continuously produce inference on the... View Details
Liang, Biyonka, and Iavor I. Bojinov. "An Experimental Design for Anytime-Valid Causal Inference on Multi-Armed Bandits." Harvard Business School Working Paper, No. 24-057, March 2024.
- 2025
- Article
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
Imai, Kosuke, and Michael Lingzhi Li. "Statistical Inference for Heterogeneous Treatment Effects Discovered by Generic Machine Learning in Randomized Experiments." Journal of Business & Economic Statistics 43, no. 1 (2025): 256–268.
- Forthcoming
- Article
Who Benefits from Online Gig Economy Platforms?
By: Christopher T. Stanton and Catherine Thomas
Online labor platforms for short-term, remote work have many more job seekers than available jobs. Despite their relative abundance, workers capture a substantial share of the surplus from transactions. We draw this conclusion from demand estimates that imply workers'... View Details
Keywords: Gig Economy; Knowledge Workers; Online Platforms; Job Search; Governing Rules, Regulations, and Reforms; Wages; Demand and Consumers
Stanton, Christopher T., and Catherine Thomas. "Who Benefits from Online Gig Economy Platforms?" American Economic Review (forthcoming).
- 2022
- Working Paper
Beliefs About Giving Across Contexts
By: Christine L. Exley, John-Henry Pezzuto and Marta Serra-Garcia
A rich literature investigates prosocial behavior by exploiting a variety of methods, the validity of which has been debated. While this literature has compared behavior inside and outside of the laboratory, an open question is how participants view prosocial behavior... View Details
Exley, Christine L., John-Henry Pezzuto, and Marta Serra-Garcia. "Beliefs About Giving Across Contexts." Working Paper, September 2022.
- October 2016 (Revised November 2016)
- Case
Innovating Beyond Ochsner
By: Richard G. Hamermesh and Olivia Hull
The Ochsner Health System has developed a proprietary software tool designed to treat hypertension. Built into the system’s electronic medical records, the Hypertension Digital Medicine program allows patients to record their blood pressure at home and share readings... View Details
Keywords: Electronic Medical Records; Telemedicine; Hypertension; High Blood Pressure; Chronic Disease; Entrepreneurship; Health Disorders; Business Model; Business Startups; Innovation and Invention; Growth Management; Marketing Strategy; Product Launch; Product Positioning; Science-Based Business; Business Strategy; Health Industry; Technology Industry; New Orleans; Louisiana
Hamermesh, Richard G., and Olivia Hull. "Innovating Beyond Ochsner." Harvard Business School Case 817-028, October 2016. (Revised November 2016.)
- February 2009 (Revised June 2011)
- Background Note
A Note on the Legal and Tax Implications of Founders' Equity Splits
By: Noam T. Wasserman and Lauren Barley
This note summarizes key legal and tax issues that founders should consider as they contemplate an equity split and ownership structure. Specific issues covered include why founders should not delay splitting the equity and whether they should involve an attorney or... View Details
Keywords: Business Startups; Entrepreneurship; Equity; Taxation; Intellectual Property; Law; Ownership; Partners and Partnerships
Wasserman, Noam T., and Lauren Barley. "A Note on the Legal and Tax Implications of Founders' Equity Splits." Harvard Business School Background Note 809-110, February 2009. (Revised June 2011.)
- February 2009
- Article
Getting Known by the Company You Keep: Publicizing the Qualifications and Former Associations of Skilled Employees
By: Peter Roberts and Mukti Khaire
When product quality cannot be ascertained in advance of purchase, producers must convince relevant audiences that they are worthy of consideration as quality players. We propose that quality-oriented producers will selectively publicize information about their skilled... View Details
Roberts, Peter, and Mukti Khaire. "Getting Known by the Company You Keep: Publicizing the Qualifications and Former Associations of Skilled Employees." Industrial and Corporate Change 18, no. 1 (February 2009).
- September–October 2024
- Article
Where Data-Driven Decision-Making Can Go Wrong
By: Michael Luca and Amy C. Edmondson
When considering internal data or the results of a study, often business leaders either take the evidence presented as gospel or dismiss it altogether. Both approaches are misguided. What leaders need to do instead is conduct rigorous discussions that assess any... View Details
Luca, Michael, and Amy C. Edmondson. "Where Data-Driven Decision-Making Can Go Wrong." Harvard Business Review 102, no. 5 (September–October 2024): 80–89.
- June 2011
- Article
Implicit Voice Theories: Taken-for-granted Rules of Self-censorship at Work
By: J. R. Detert and Amy C. Edmondson
This article examines, in a series of four studies, the nature and impact of implicit voice theories-largely taken-for-granted beliefs about when and why speaking up at work is risky or inappropriate. In Study 1, qualitative data from 190 interviews conducted in a... View Details
Keywords: Spoken Communication; Interpersonal Communication; Employees; Managerial Roles; Organizational Culture; Risk and Uncertainty; Behavior
Detert, J. R., and Amy C. Edmondson. "Implicit Voice Theories: Taken-for-granted Rules of Self-censorship at Work." Academy of Management Journal 54, no. 3 (June 2011): 461–488.
- November 2011 (Revised August 2012)
- Background Note
Customer Visits for Entrepreneurs
Provides practical guidelines for conducting customer visits to explore and validate demand for an entrepreneurial offering. Reviews conditions under which visits will yield superior insights, compared to other research methods. Describes criteria for selecting visit... View Details
Cespedes, Frank V. "Customer Visits for Entrepreneurs." Harvard Business School Background Note 812-098, November 2011. (Revised August 2012.)
- October 2023 (Revised March 2024)
- Case
Fortinet: Cybersecurity Pioneer Ken Xie Considers the Long Game
By: Tsedal Neeley, Jeff Huizinga and Emily Grandjean
Ken Xie, cofounder of cybersecurity giant Fortinet, faced a critical decision that would validate his leadership. Fortinet became the industry’s second-largest pureplay cybersecurity firm by developing differentiated hardware and investing in R&D. However, after a... View Details
Keywords: Leadership Development; Leadership Style; Marketing Strategy; Communication Strategy; Cybersecurity; Competitive Advantage; Information Technology Industry; United States; Sunnyvale
Neeley, Tsedal, Jeff Huizinga, and Emily Grandjean. "Fortinet: Cybersecurity Pioneer Ken Xie Considers the Long Game." Harvard Business School Case 424-016, October 2023. (Revised March 2024.)
- October 2021
- Case
Sparking Growth at Consumer Reports
Consumer Reports (CR) is a nonprofit organization that traditionally provided independent testing and research on consumer goods. With the need to diversify its audience and revenue streams CR partnered with market research firm Spark No. 9 to identify potential... View Details
Keywords: Nonprofit Management; Innovation; Entrepreneurship; Marketing; Social Media; Innovation and Management; Nonprofit Organizations
Wallace, Christina. "Sparking Growth at Consumer Reports." Harvard Business School Case 822-035, October 2021.
- 2020
- Working Paper
Targeting for Long-Term Outcomes
By: Jeremy Yang, Dean Eckles, Paramveer Dhillon and Sinan Aral
Decision makers often want to target interventions so as to maximize an outcome that is observed only in the long term. This typically requires delaying decisions until the outcome is observed or relying on simple short-term proxies for the long-term outcome. Here we... View Details
Keywords: Targeted Marketing; Optimization; Churn Management; Marketing; Customer Relationship Management; Policy; Learning; Outcome or Result
Yang, Jeremy, Dean Eckles, Paramveer Dhillon, and Sinan Aral. "Targeting for Long-Term Outcomes." Working Paper, October 2020.
Design-Based Confidence Sequences: A General Approach to Risk Mitigation in Online Experimentation.
Randomized experiments have become the standard method for companies to evaluate the performance of new products or services. In addition to augmenting managers' decision-making, experimentation mitigates risk by limiting the proportion of customers exposed to... View Details
- December 2004 (Revised August 2005)
- Exercise
Orientation to the Public Image Assessment Exercise
By: Robin J. Ely
The Public Image Assessment exercise acquaints students with the ideal images they hold of themselves, the actions they engage in to convey these images, and the benefits and costs of these behaviors to themselves and to others. Social psychologists call this process... View Details
Ely, Robin J. "Orientation to the Public Image Assessment Exercise." Harvard Business School Exercise 405-057, December 2004. (Revised August 2005.)
- Research Summary
Conceptualizing and measuring environmental sustainability
This research involves developing clarity around the murky construct of environmental sustainability, and improving techniques to measure corporate environmental performance. My prior research in this domain includes View Details
- 2024
- Working Paper
The Real Effects of Bankruptcy Forum Shopping
By: Samuel Antill and Aymeric Bellon
Many non-Delaware firms strategically file for bankruptcy in Delaware. Should this "forum shopping" be allowed? This question has motivated six congressional bill proposals over decades of policy debate. Using a novel natural experiment and Census-Bureau microdata, we... View Details
Antill, Samuel, and Aymeric Bellon. "The Real Effects of Bankruptcy Forum Shopping." Working Paper, December 2024.
- October 2012
- Article
Target the Right Market
By: Jill Avery and Thomas Steenburgh
SparkPlace is a two-year-old business with a hot new product: software that manages and measures the effectiveness of permission-based marketing campaigns for social media. The company is in the process of deciding on which of two customer segments to focus its... View Details
Keywords: Marketing; Market Segmentation; Customer Defection; Customer Lifetime Value; Customer Relationship Management; CRM; Market Segmentation And Target Market Selection; Marketing Strategy; Product Marketing; Customer Focus and Relationships; Customer Value and Value Chain; Technology Industry; United States
Avery, Jill, and Thomas Steenburgh. "Target the Right Market." Harvard Business Review 90, no. 10 (October 2012): 119–123.
- May–June 2021
- Article
Why Start-ups Fail
If you’re launching a business, the odds are against you: Two-thirds of start-ups never show a positive return. Unnerved by that statistic, a professor of entrepreneurship at Harvard Business School set out to discover why. Based on interviews and surveys with hundreds... View Details
Eisenmann, Thomas R. "Why Start-ups Fail." Harvard Business Review 99, no. 3 (May–June 2021): 76–85.
- September 2022
- Article
Health Externalities and Policy: The Role of Social Preferences
By: Laura Alfaro, Ester Faia, Nora Lamersdorf and Farzad Saidi
Social preferences facilitate the internalization of health externalities, for example by reducing mobility during a pandemic. We test this hypothesis using mobility data from 258 cities worldwide alongside experimentally validated measures of social preferences.... View Details
Keywords: Social Preferences; Pandemics; Mobility; Health Externalities; Mitigation Policies; Health Pandemics; Cooperation; Behavior; Policy
Alfaro, Laura, Ester Faia, Nora Lamersdorf, and Farzad Saidi. "Health Externalities and Policy: The Role of Social Preferences." Management Science 68, no. 9 (September 2022): 6751–6761.