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Show Results For
- All HBS Web
(2,654)
- People (14)
- News (430)
- Research (1,686)
- Events (17)
- Multimedia (5)
- Faculty Publications (638)
- 2020
- Working Paper
Design and Analysis of Switchback Experiments
By: Iavor I Bojinov, David Simchi-Levi and Jinglong Zhao
In switchback experiments, a firm sequentially exposes an experimental unit to a random treatment, measures its response, and repeats the procedure for several periods to determine which treatment leads to the best outcome. Although practitioners have widely adopted... View Details
Bojinov, Iavor I., David Simchi-Levi, and Jinglong Zhao. "Design and Analysis of Switchback Experiments." Harvard Business School Working Paper, No. 21-034, September 2020.
- Teaching Interest
Leadership and Organizational Behavior (LEAD)
Professor Bernstein taught Leadership and Organizational Behavior (LEAD) from 2013-2016 (7 sections). This course focuses on how managers become effective leaders by addressing the human side of enterprise.
The course is divided into five modules:
- October 1976 (Revised February 1987)
- Case
Cramer Electronics, Inc.
Designed to be the second day of a two-day series on the electronic component distribution industry, following a day spent discussing Note on the Electronic Component Distribution Industry and Raytheon Co.: Diversification. The important teaching themes which this case... View Details
Keywords: Change Management; Innovation Strategy; Management Style; Resource Allocation; Opportunities; Corporate Strategy; Diversification; Distribution Industry; Electronics Industry
Porter, Michael E. "Cramer Electronics, Inc." Harvard Business School Case 377-063, October 1976. (Revised February 1987.)
- 14 Jul 2003
- Research & Ideas
Understaffed and Overworked: What Now?
focus, effective communication, and more than a pinch of dynamism. Those were certainly apparent in Andrus's response to her rather large dilemma. "I had a problem," she says, "but there were... View Details
Keywords: by Paul Michelman
- 18 Aug 2008
- Research & Ideas
How Disruptive Innovation Changes Education
products are more accessible to users, they are typically still relatively complicated to build. We see this in education; effective and engaging computer-based learning... View Details
- 07 Aug 2007
- First Look
First Look: August 7, 2007
subset of countries. This paper uses a difference-in-difference analysis that compares US equity holdings in affected and unaffected countries. The international investment responses to JGTRRA were substantial and imply an elasticity of... View Details
Keywords: Martha Lagace
- 05 Apr 2011
- First Look
First Look: April 5
Limits to Network Effects Authors:Hann Hałaburda and Mikołaj Jan Piskorski Abstract We model conditions under which agents in two-sided matching... View Details
Keywords: Sean Silverthorne
- 02 Jan 2007
- Research & Ideas
Most Popular Articles of 2006
anything having to do with globalization. But in 2006, some new areas of HBS faculty research began to emerge that also struck a chord with readers. These included the business of open source, how View Details
Keywords: by Sean Silverthorne
- June 2022
- Case
Business Implications from Regulating Carbon Emissions in the EU
By: George Serafeim and Benjamin Maletta
In the beginning of the 21st century, the European Union (the EU) had led the global fight against climate change with a wide array of policy measures. The EU’s primary approach to climate policy had been taxation via the European Union Emissions Trading System (EU... View Details
Keywords: Regulation; Carbon Emissions; Trade; Sustainability; Decarbonization; Performance; Climate Change; Analysis; Strategy; Taxation; Policy; Environmental Regulation; Industry Structures; European Union
Serafeim, George, and Benjamin Maletta. "Business Implications from Regulating Carbon Emissions in the EU." Harvard Business School Case 122-106, June 2022.
- 09 Mar 2016
- HBS Seminar
Katja Seim of The Wharton School, University of Pennsylvania
- Research Summary
Physician vs. Patient Incentives in Prescription Drug Choice
The market for medical care involves interactions among patients, providers, and the insurers who pay for the care of their enrollees. The division of responsibilities creates scope for agency costs and moral hazard in the physician's treatment choice.... View Details
Dodging the Taxman
Reducing tax evasion is a key priority for many governments, particularly in developing countries. A growing literature has argued that the ability to verify taxpayer self-reports against reports from third parties is critical for modern tax enforcement and the growth... View Details
- 2016
- Working Paper
Reviews, Reputation, and Revenue: The Case of Yelp.com
By: Michael Luca
Do online consumer reviews affect restaurant demand? I investigate this question using a novel dataset combining reviews from the website Yelp.com and restaurant data from the Washington State Department of Revenue. Because Yelp prominently displays a restaurant's... View Details
Keywords: Revenue; Network Effects; Reputation; Social and Collaborative Networks; Food and Beverage Industry; Service Industry; Washington (state, US)
Luca, Michael. "Reviews, Reputation, and Revenue: The Case of Yelp.com." Harvard Business School Working Paper, No. 12-016, September 2011. (Revised March 2016.)
- 2016
- Working Paper
Cohort Turnover and Operational Performance: The July Phenomenon in Teaching Hospitals
By: Hummy Song, Robert S. Huckman and Jason R. Barro
We consider the impact of cohort turnover—the planned simultaneous exit of a large number of experienced employees and a similarly sized entry of new workers—on operational performance in the context of teaching hospitals. Specifically, we examine the impact of the... View Details
Keywords: Health Care; Health Care Operations; Hospitals; Productivity; Empirical Operations; Service Delivery; Training; Performance Productivity; Health Care and Treatment; Health Industry; United States
Song, Hummy, Robert S. Huckman, and Jason R. Barro. "Cohort Turnover and Operational Performance: The July Phenomenon in Teaching Hospitals." Harvard Business School Working Paper, No. 16-039, September 2015. (Revised September 2016. Finalist, 2015 POMS College of Healthcare Operations Management Best Paper Competition.)
- July 2023
- Article
Design and Analysis of Switchback Experiments
By: Iavor I Bojinov, David Simchi-Levi and Jinglong Zhao
In switchback experiments, a firm sequentially exposes an experimental unit to a random treatment, measures its response, and repeats the procedure for several periods to determine which treatment leads to the best outcome. Although practitioners have widely adopted... View Details
Bojinov, Iavor I., David Simchi-Levi, and Jinglong Zhao. "Design and Analysis of Switchback Experiments." Management Science 69, no. 7 (July 2023): 3759–3777.
- 06 Sep 2024
- Blog Post
Harvard Business School Announces 2024 Goldsmith Fellows
Harvard Business School (HBS) has announced the 2024 recipients of the Horace W. Goldsmith Fellowships. Established in 1988 by the Horace W. Goldsmith Foundation and Richard L. Menschel (MBA 1959), a former director of the foundation and a View Details
- September 2010
- Article
Making Self-Regulation More Than Merely Symbolic: The Critical Role of the Legal Environment
By: Jodi L. Short and Michael W. Toffel
Using data from a sample of U.S. industrial facilities subject to the federal Clean Air Act from 1993 to 2003, this article theorizes and tests the conditions under which organizations' symbolic commitments to self-regulate are particularly likely to result in improved... View Details
Keywords: Adoption; Code Law; Environmental Sustainability; Governing Rules, Regulations, and Reforms; Organizations; Governance Compliance; Strategy; Motivation and Incentives; United States
Short, Jodi L., and Michael W. Toffel. "Making Self-Regulation More Than Merely Symbolic: The Critical Role of the Legal Environment." Administrative Science Quarterly 55, no. 3 (September 2010): 361–396. (Lead article; Featured in the Stanford Social Innovation Review (Summer 2011) and in Behind the scenes of the Administrative Science Quarterly.)
- February 2023
- Case
Success Academy Charter Schools
By: Robin Greenwood, Joshua D. Coval, Denise Han, Ruth Page and Dave Habeeb
This stand-alone multimedia case follows the story of Eva Moskowitz and Success Academy, a network of high-performing charter schools in New York City. As a New York City councilor between 1999 and 2006, Moskowitz became frustrated over the inertia and dysfunction in... View Details
Keywords: Business and Government Relations; Performance Effectiveness; Equality and Inequality; Private Sector; Education Industry; New York (city, NY)
Greenwood, Robin, Joshua D. Coval, Denise Han, Ruth Page, and Dave Habeeb. "Success Academy Charter Schools." Harvard Business School Multimedia/Video Case 222-707, February 2023.
- Article
Active World Model Learning with Progress Curiosity
By: Kuno Kim, Megumi Sano, Julian De Freitas, Nick Haber and Daniel Yamins
World models are self-supervised predictive models of how the world evolves. Humans learn world models by curiously exploring their environment, in the process acquiring compact abstractions of high bandwidth sensory inputs, the ability to plan across long temporal... View Details
Kim, Kuno, Megumi Sano, Julian De Freitas, Nick Haber, and Daniel Yamins. "Active World Model Learning with Progress Curiosity." Proceedings of the International Conference on Machine Learning (ICML) 37th (2020).
- November 2023 (Revised April 2025)
- Case
Norse Atlantic Airways
By: Willy Shih
Bjørn Tore Larsen, Norse Atlantic Airways' founder and CEO, hadn't planned to get into the airline business. But when the COVID-19 pandemic depressed the global demand for air travel and the lease rates for jetliners, he realized if ever he was going to get into the... View Details
Keywords: Business Model; Business Startups; Market Entry and Exit; Leasing; Business Strategy; Segmentation; Interest Rates; Air Transportation Industry; Europe; North America; Norway; United Kingdom; United States
Shih, Willy. "Norse Atlantic Airways." Harvard Business School Case 624-034, November 2023. (Revised April 2025.)