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Show Results For
- All HBS Web
(7,690)
- People (19)
- News (1,299)
- Research (5,107)
- Events (62)
- Multimedia (60)
- Faculty Publications (3,833)
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- Fall 2020
- Article
Business Credit Programs in the Pandemic Era
By: Samuel G. Hanson, Jeremy C. Stein, Adi Sunderam and Eric Zwick
We develop a pair of models that speak to the goals and design of the sort of business-lending and corporate-bond purchase programs that have been introduced by governments in response to the ongoing COVID-19 pandemic. An overarching theme is that, in contrast to the... View Details
Keywords: COVID-19; Business Lending; Government Intervention; Econometric Models; Health Pandemics; Credit; Governance; Policy
Hanson, Samuel G., Jeremy C. Stein, Adi Sunderam, and Eric Zwick. "Business Credit Programs in the Pandemic Era." Brookings Papers on Economic Activity (Fall 2020).
- 2022
- Article
Exploring Counterfactual Explanations Through the Lens of Adversarial Examples: A Theoretical and Empirical Analysis.
By: Martin Pawelczyk, Chirag Agarwal, Shalmali Joshi, Sohini Upadhyay and Himabindu Lakkaraju
As machine learning (ML) models become more widely deployed in high-stakes applications, counterfactual explanations have emerged as key tools for providing actionable model explanations in practice. Despite the growing popularity of counterfactual explanations, a... View Details
Keywords: Machine Learning Models; Counterfactual Explanations; Adversarial Examples; Mathematical Methods
Pawelczyk, Martin, Chirag Agarwal, Shalmali Joshi, Sohini Upadhyay, and Himabindu Lakkaraju. "Exploring Counterfactual Explanations Through the Lens of Adversarial Examples: A Theoretical and Empirical Analysis." Proceedings of the International Conference on Artificial Intelligence and Statistics (AISTATS) 25th (2022).
- September 2021 (Revised March 2022)
- Case
Katie Couric Media: Landing the First Client
By: N. Louis Shipley and William R. Kerr
In May 2018, celebrated journalist Katie Couric and her husband, John Molner, had recently launched a full-service media firm called Katie Couric Media (KCM). Couric treasured the opportunity to address important social issues like gender equality, environmental... View Details
Keywords: Customer Acquisition; Subscription Model; Entrepreneurship; Business Startups; Media; Customers; Acquisition; Social Issues; Brands and Branding; Media and Broadcasting Industry
Shipley, N. Louis, and William R. Kerr. "Katie Couric Media: Landing the First Client." Harvard Business School Case 822-011, September 2021. (Revised March 2022.)
- March 2005
- Article
Towards a Competitive Arousal Model of Decision Making: A Study of Auction Fever in Live and Internet Auctions
By: Gillian Ku, Deepak Malhotra and J. Keith Murnighan
Ku, Gillian, Deepak Malhotra, and J. Keith Murnighan. "Towards a Competitive Arousal Model of Decision Making: A Study of Auction Fever in Live and Internet Auctions." Organizational Behavior and Human Decision Processes 96, no. 2 (March 2005): 89–103.
- Article
Platform Competition: Betfair and the U.K. Market for Sports Betting
By: Ramon Casadesus-Masanell and Neil Campbell
We examine two episodes of strategic interaction in the U.K. betting industry: (i) Betfair (an entrant multi-sided platform or MSP) vs. Flutter (also an MSP) and (ii) Betfair vs. traditional bookmakers. We find that although Betfair was an underfunded second mover in... View Details
Keywords: Platform Design; Betting; Complements; Competing Business Models; Co-opetition; Entry; Multi-Sided Platforms; Design; Network Effects; Business Model; Competition; Cooperation
Casadesus-Masanell, Ramon, and Neil Campbell. "Platform Competition: Betfair and the U.K. Market for Sports Betting." Special Issue on Platforms. Journal of Economics & Management Strategy 28, no. 1 (Spring 2019): 29–40.
- 14 Aug 2017
- Conference Presentation
A Convex Framework for Fair Regression
By: Richard Berk, Hoda Heidari, Shahin Jabbari, Matthew Joseph, Michael J. Kearns, Jamie Morgenstern, Seth Neel and Aaron Roth
We introduce a flexible family of fairness regularizers for (linear and logistic) regression problems. These regularizers all enjoy convexity, permitting fast optimization, and they span the range from notions of group fairness to strong individual fairness. By varying... View Details
Berk, Richard, Hoda Heidari, Shahin Jabbari, Matthew Joseph, Michael J. Kearns, Jamie Morgenstern, Seth Neel, and Aaron Roth. "A Convex Framework for Fair Regression." Paper presented at the 4th Workshop on Fairness, Accountability, and Transparency in Machine Learning, Special Interest Group on Knowledge Discovery and Data Mining (SIGKDD), August 14, 2017.
- September 2016 (Revised February 2017)
- Case
MyTime
By: Juliane Begenau and Robin Greenwood
Ethan Anderson, the CEO of San Francisco–based e-commerce company MyTime, must decide on the company's growth strategy. MyTime’s first product was a website and mobile app that offered consumers a convenient way to book appointments with local merchants throughout the... View Details
- March 2013
- Article
Do You Really Want to Be an eBay?
By: Andrei Hagiu and Julian Wright
Most companies that serve as intermediaries between buyers and sellers face a fundamental strategy decision: Should they be resellers (like supermarkets), acquiring and then reselling products or services? Should they operate as multisided platforms (like eBay),... View Details
Hagiu, Andrei, and Julian Wright. "Do You Really Want to Be an eBay?" Harvard Business Review 91, no. 3 (March 2013): 102–108.
- Article
Risk and the Cross-Section of Stock Returns
By: Mark Seasholes, Radu Burlacu, Patrice Fontaine and Sonia Jimenez-Garces
This paper mathematically transforms unobservable rational expectation equilibrium model parameters (information precision and supply uncertainty) into a single variable that is correlated with expected returns and that can be estimated with recently observed data. Our... View Details
Keywords: Risk Premiums; Cross-sectional Asset Pricing; REE Models; Risk and Uncertainty; Asset Pricing; Investment Return
Seasholes, Mark, Radu Burlacu, Patrice Fontaine, and Sonia Jimenez-Garces. "Risk and the Cross-Section of Stock Returns." Journal of Financial Economics 105, no. 3 (September 2012): 511–522.
- October 2007 (Revised July 2013)
- Case
Vertex Pharmaceuticals and the Cystic Fibrosis Foundation: Venture Philanthropy Funding for Biotech
By: Robert F. Higgins, Sophie LaMontagne and Brent Kazan
In 2001, Vertex Pharmaceuticals Incorporated acquired the San Diego-based biotech company, Aurora Biosciences. The combination of Vertex's and Aurora's technologies would improve the flow of novel drug candidates into development. However, several questions related to... View Details
Keywords: Philanthropy; Philanthropy Funding; Innovation; Funding Model; Venture Capital; Partners and Partnerships; Financing and Loans; Investment Funds; Acquisition; Philanthropy and Charitable Giving; Biotechnology Industry; Pharmaceutical Industry; San Diego
Higgins, Robert F., Sophie LaMontagne, and Brent Kazan. "Vertex Pharmaceuticals and the Cystic Fibrosis Foundation: Venture Philanthropy Funding for Biotech." Harvard Business School Case 808-005, October 2007. (Revised July 2013.)
- December 2015 (Revised February 2016)
- Case
Ocado
By: José Alvarez, David E. Bell and Damien McLoughlin
In 2015, U.K.-based Ocado was the world's largest pure player in the online home-delivery grocery business and was gaining a growing share of the highly competitive U.K. grocery market. Ocado had made heavy investments in technology, including a highly automated... View Details
Keywords: Ocado; Grocery; Retail; Online Grocery; Supermarket; Delivery Models; Service Models; United Kingdom; Technology; Operations Management; Digital Platforms; Competition; Internet and the Web; Service Operations; Service Delivery; Supply Chain; Marketing; Retail Industry; Food and Beverage Industry; United Kingdom
- May 1999
- Article
The Effect of Adding a Constant to All Payoffs: Experimental Investigation, and a Reinforcement Learning Model with Self-Adjusting Speed of Learning
By: Ido Erev, Yoella Bereby-Meyer and Alvin E. Roth
Erev, Ido, Yoella Bereby-Meyer, and Alvin E. Roth. "The Effect of Adding a Constant to All Payoffs: Experimental Investigation, and a Reinforcement Learning Model with Self-Adjusting Speed of Learning." Journal of Economic Behavior & Organization 39, no. 1 (May 1999): 111–128.
- March 2024
- Case
Hippo: Weathering the Storm of the Home Insurance Crisis
By: Lauren Cohen, Grace Headinger and Sophia Pan
Rick McCathron, CEO of Hippo, considered how the firm’s underwriting model could account for the effects of climate change. Along with providing smart home packages, targeting risk-friendly customers, and using data-driven pricing, the Insurtech used technologically... View Details
Keywords: Fintech; Underwriters; Big Data; Insurance Companies; Business Model Design; Weather Insurance; Business Model; Forecasting and Prediction; Climate Change; Environmental Sustainability; Green Technology; Technological Innovation; Natural Environment; Natural Disasters; Weather; Business Strategy; Competitive Advantage; Business Earnings; Insurance; Social Issues; Insurance Industry; United States; California
- Research Summary
Overview
Professor Ngwe develops structural models of supply and demand to probe deeply into the dynamics of shoppers and retailers, especially unobservable aspects of purchase behavior.
He focuses on the adoption of outlet stores in the fashion industry, using transactional... View Details
- June 2023 (Revised May 2024)
- Case
Optimalen Capital
A new client portfolio manager at a quantitative investment management firm must explain why her firm, Optimalen Capital, has rebalanced a client portfolio with a set of trades that seem unintuitive. In particular, Optimalen has added to its position of Walmart (ticker... View Details
Baker, Malcolm, Elisabeth Kempf, and Jonathan Wallen. "Optimalen Capital." Harvard Business School Case 223-099, June 2023. (Revised May 2024.)
- Article
The Nature of Stochastic Equilibria
By: Jerry R. Green and Mukul Majumdar
This paper formulates the notion of stochastic equilibria as invariant probability distributions consistent with the behavior patterns of individuals and the disequilibrium adjustment mechanism of the economy. Conditions for existence, uniqueness, and stability of such... View Details
Green, Jerry R., and Mukul Majumdar. "The Nature of Stochastic Equilibria." Econometrica 43, no. 4 (July 1975): 647–660.
- November 2017 (Revised July 2019)
- Case
Project Moab at Hulu
By: C. Fritz Foley and James Weber
In 2015, Elaine Paul, CFO of Hulu, and the rest of the senior leadership team, must decide if they should offer a new, advertisement-free subscription service. At the time Hulu distributed a wide variety of content including in season current programing and earned... View Details
Keywords: Video On Demand; Subscriber Models; Media; Business Model; Decision Choices and Conditions; Media and Broadcasting Industry; Entertainment and Recreation Industry; United States
Foley, C. Fritz, and James Weber. "Project Moab at Hulu." Harvard Business School Case 218-050, November 2017. (Revised July 2019.)
- 2020
- Working Paper
On the Representativeness of Voter Turnout
By: Louis Kaplow and Scott Duke Kominers
Prominent theory research on voting uses models in which expected pivotality drives voters' turnout decisions and hence determines voting outcomes. It is recognized, however, that such work is at odds with Downs's paradox: in practice, many individuals turn out for... View Details
Kaplow, Louis, and Scott Duke Kominers. "On the Representativeness of Voter Turnout." Harvard Business School Working Paper, No. 20-097, March 2020.
- November 2012 (Revised January 2013)
- Case
Companion Diagnostics: Uncertainties for Approval and Reimbursement
By: Richard G. Hamermesh, Norman C. Selby and Phillip Andrews
The FDA approvals of novel therapeutics were seen as signs in the personalized medicine community of real progress in the growth of personalized medicine. The FDA's approval of such drugs, along with companion diagnostics, suggested a shift in thinking and regulatory... View Details
Keywords: Models Of Reimbursement; Personalized Medicine; Regulation; Healthcare Reform; Health Care and Treatment; Health Industry; United States
Hamermesh, Richard G., Norman C. Selby, and Phillip Andrews. "Companion Diagnostics: Uncertainties for Approval and Reimbursement." Harvard Business School Case 813-037, November 2012. (Revised January 2013.)
- June 2024
- Article
Rationalizing Outcomes: Interdependent Learning in Competitive Markets
By: Anoop R. Menon and Dennis Yao
In this article we use simulation models to explore interdependent learning in competitive markets. Such interactions require attention to both the mental representations held by the management of the focal firm as well as the beliefs of that management about the... View Details
Keywords: Mental Models; Strategic Interactions; Rationalization; Explanation-based View; Competition
Menon, Anoop R., and Dennis Yao. "Rationalizing Outcomes: Interdependent Learning in Competitive Markets." Strategy Science 9, no. 2 (June 2024): 97–117.