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Show Results For
- All HBS Web
(821)
- People (2)
- News (122)
- Research (624)
- Events (7)
- Multimedia (1)
- Faculty Publications (399)
- 2022
- Article
Data Poisoning Attacks on Off-Policy Evaluation Methods
By: Elita Lobo, Harvineet Singh, Marek Petrik, Cynthia Rudin and Himabindu Lakkaraju
Off-policy Evaluation (OPE) methods are a crucial tool for evaluating policies in high-stakes domains such as healthcare, where exploration is often infeasible, unethical, or expensive. However, the extent to which such methods can be trusted under adversarial threats... View Details
Lobo, Elita, Harvineet Singh, Marek Petrik, Cynthia Rudin, and Himabindu Lakkaraju. "Data Poisoning Attacks on Off-Policy Evaluation Methods." Proceedings of the Conference on Uncertainty in Artificial Intelligence (UAI) 38th (2022): 1264–1274.
- January 2018 (Revised October 2019)
- Case
Christie's and Leonardo da Vinci's Salvator Mundi: The Value of a Brand
By: Jill Avery
A 16th century Renaissance masterpiece, missing for 137 years, believed by many to have been destroyed and then rediscovered less than a decade ago, becomes the most expensive painting ever sold, all the while surrounded by controversy. Did the buyer of Leonardo da... View Details
Keywords: Brands; Brand Valuation; Art Collector; Arts Marketing; Auction House; Auctions; Luxury Brand; Luxury Consumers; Luxury Goods; Marketing; Valuation; Marketing Strategy; Arts; Luxury; Value; Brands and Branding; Fine Arts Industry; Italy; United Kingdom; Europe; United States; United Arab Emirates
Avery, Jill. "Christie's and Leonardo da Vinci's Salvator Mundi: The Value of a Brand." Harvard Business School Case 518-066, January 2018. (Revised October 2019.)
- April 2014
- Case
Ford Motor Company: Blueprint for Mobility
By: Karim R. Lakhani, Marco Iansiti and Noah Fisher
Mark Fields, Ford Motor Company's COO, had to ensure the company's current business model of building cars and trucks remained strong, while concurrently navigating the company into the rapidly expanding industry of personal mobility. Personal mobility required new... View Details
Keywords: Automobiles; Automobile Manufacturing; Ford Motor Company; Mark Fields; Blueprint For Mobility; Dearborn; Michigan; Car Sharing; Parking; On-demand Ride Sharing; Strategy; Business Model; Auto Industry; Michigan; United States
Lakhani, Karim R., Marco Iansiti, and Noah Fisher. "Ford Motor Company: Blueprint for Mobility." Harvard Business School Case 614-018, April 2014.
"Behavioral Hazard in Health Insurance"
A fundamental implication of standard moral hazard models is overuse of low-value medical care because copays are lower than costs. In these models, the demand curve alone can be used to make welfare statements, a fact relied on by much empirical work. There is... View Details
- September 2013
- Case
United Rentals (A)
By: Jay W. Lorsch, Kathleen Durante and Emily McTague
In December 1997 United Rentals (URI) went public on the NYSE. Ten years later, during the peak of the economic meltdown, the company's performance was in decline. United Rentals had experienced its share of problems in the prior years and was still struggling to... View Details
Keywords: Board Of Directors; Board Dynamics; Accounting Fraud; Governance; Board Committees; Merger; Corporate Governance; Construction Industry; United States
Lorsch, Jay W., Kathleen Durante, and Emily McTague. "United Rentals (A)." Harvard Business School Case 414-043, September 2013.
- 2021
- Working Paper
Quantifying the Inefficiency of Multi-unit Auctions for Normal Goods
By: Brian Baisa and Simon Essig Aberg
We study multi-unit auctions for homogenous goods in a private value setting where bidders have non-quasilinear preferences. Several recent impossibility results study this setting and find there is no mechanism that retains the Vickrey auction’s desired incentive and... View Details
Baisa, Brian, and Simon Essig Aberg. "Quantifying the Inefficiency of Multi-unit Auctions for Normal Goods." Working Paper, August 2021.
- 2011
- Working Paper
The Institutional Logic of Great Global Firms
Theories of the firm have been dominated by a legacy of ideas from early industrialization that pose zero-sum opposition between capital and labor (or capital and nearly everything else), differentiating the economy from society and often posing irreconcilable... View Details
Keywords: Economy; Capital; Globalized Firms and Management; Labor; Corporate Social Responsibility and Impact; Practice; Conflict of Interests; Social Issues; Theory
Kanter, Rosabeth Moss. "The Institutional Logic of Great Global Firms." Harvard Business School Working Paper, No. 11-119, May 2011.
- November 2019
- Article
The Relevance of Broker Networks for Information Diffusion in the Stock Market
By: Marco Di Maggio, Francesco Franzoni, Amir Kermani and Carlo Sommavilla
This paper shows that the network of relationships between brokers and institutional investors shapes information diffusion in the stock market. We exploit trade-level data to show that central brokers gather information by executing informed trades, which is then... View Details
Keywords: Broker Networks; Institutional Investors; Asset Prices; Business and Shareholder Relations; Institutional Investing; Information; Knowledge Dissemination; Financial Markets; Asset Pricing
Di Maggio, Marco, Francesco Franzoni, Amir Kermani, and Carlo Sommavilla. "The Relevance of Broker Networks for Information Diffusion in the Stock Market." Journal of Financial Economics 134, no. 2 (November 2019): 419–446.
- Article
Behavioral Hazard in Health Insurance
By: Katherine Baicker, Sendhil Mullainathan and Joshua Schwartzstein
A fundamental implication of standard moral hazard models is overuse of low-value medical care because copays are lower than costs. In these models, the demand curve alone can be used to make welfare statements, a fact relied on by much empirical work. There is ample... View Details
Baicker, Katherine, Sendhil Mullainathan, and Joshua Schwartzstein. "Behavioral Hazard in Health Insurance." Quarterly Journal of Economics 130, no. 4 (November 2015): 1623–1667. (Online Appendix.)
- 2014
- Working Paper
Product to Platform Transitions: Organizational Identity Implications
By: Elizabeth J. Altman and Mary Tripsas
Organizations are increasingly recognizing that value they once derived from offering standalone products can be significantly enhanced if they transition to platform-based businesses that harness the innovative capabilities of complementors. While the competitive... View Details
Keywords: Organizational Change; Organizational Identity; Ecosystems; Complementors; Managing Innovation; Organizational Change and Adaptation; Multi-Sided Platforms; Innovation and Management; Organizational Culture
Altman, Elizabeth J., and Mary Tripsas. "Product to Platform Transitions: Organizational Identity Implications." Harvard Business School Working Paper, No. 14-045, December 2013. (Revised September 2014.)
- July–August 2013
- Article
Complementary Goods: Creating, Capturing, and Competing for Value
By: Taylan Yalcin, Elie Ofek, Oded Koenigsberg and Eyal Biyalogorsky
This paper studies the strategic interaction between firms producing strictly complementary products. With strict complements, a consumer derives positive utility only when both products are used together. We show that value-capture and value-creation problems arise... View Details
Yalcin, Taylan, Elie Ofek, Oded Koenigsberg, and Eyal Biyalogorsky. "Complementary Goods: Creating, Capturing, and Competing for Value." Marketing Science 32, no. 4 (July–August 2013): 554–569.
- September 2011
- Article
Information Risk and Fair Value: An Examination of Equity Betas
By: Edward J. Riedl and George Serafeim
Using a sample of U.S. financial institutions, we exploit recent mandatory disclosures of financial instruments designated as fair value level 1, 2, and 3 to test whether greater information risk in financial instrument fair values leads to higher cost of capital. We... View Details
Keywords: Forecasting and Prediction; Assets; Cost of Capital; Financial Institutions; Financial Instruments; Corporate Disclosure; Information; Risk and Uncertainty; Value; United States
Riedl, Edward J., and George Serafeim. "Information Risk and Fair Value: An Examination of Equity Betas." Journal of Accounting Research 49, no. 4 (September 2011): 1083–1122.
- Research Summary
Islamic Financing Practices
By: Samuel L. Hayes
Samuel L. Hayes III is examining (with faculty of Harvard University's Law
School and Center for Middle Eastern Studies) Islamic banking and
investment practices. Because the Koran prohibits the payment of fixed
interest and guarantees on funds invested either with... View Details
- January 23, 2023
- Article
Digital Public Health Interventions at Scale: The Impact of Social Media Advertising on Beliefs and Outcomes Related to COVID Vaccines
By: Susan Athey, Kristen Grabarz, Michael Luca and Nils Wernerfelt
Public health organizations increasingly use social media advertising campaigns in pursuit of public health goals. In this paper, we evaluate the impact of about $40 million of social media advertisements that were run and experimentally tested on Facebook and... View Details
Keywords: COVID-19 Pandemic; Public Health; Vaccines; Social Media; Advertising; Power and Influence; Health Care and Treatment
Athey, Susan, Kristen Grabarz, Michael Luca, and Nils Wernerfelt. "Digital Public Health Interventions at Scale: The Impact of Social Media Advertising on Beliefs and Outcomes Related to COVID Vaccines." e2208110120. Proceedings of the National Academy of Sciences 120, no. 5 (January 23, 2023).
- September 2006
- Article
The Speed of Learning in Noisy Games: Partial Reinforcement and the Sustainability of Cooperation
By: Yoella Bereby-Meyer and Alvin E. Roth
In an experiment, players ability to learn to cooperate in the repeated prisoners dilemma was substantially diminished when the payoffs were noisy, even though players could monitor one anothers past actions perfectly. In contrast, in one-time play against a succession... View Details
Bereby-Meyer, Yoella, and Alvin E. Roth. "The Speed of Learning in Noisy Games: Partial Reinforcement and the Sustainability of Cooperation." American Economic Review 96, no. 4 (September 2006): 1029–1042.
- 2011
- Chapter
Knowledge Structures and Innovation: Useful Abstractions and Unanswered Questions
By: Gautam Ahuja and Elena Novelli
We examine the received research on organizational knowledge structures with a special focus on their link to innovation. We note that the literature has used the term knowledge structure to represent three quite distinct components of organizational knowledge: the... View Details
Ahuja, Gautam, and Elena Novelli. "Knowledge Structures and Innovation: Useful Abstractions and Unanswered Questions." Chap. 25 in Handbook of Organizational Learning and Knowledge Management. 2nd ed. by M. Easterby-Smith and M. Lyles, 551–578. Chichester, UK: John Wiley & Sons, 2011.
- Forthcoming
- Article
Economic Integration and the Transmission of Democracy
By: Marco Tabellini and Giacomo Magistretti
In this paper, we study the effects of economic integration with democratic partners on democracy. We assemble a large country-level panel dataset from 1960 to 2015, and exploit improvements in air, relative to sea, transportation to derive a time-varying instrument... View Details
Keywords: Democratization; Institutional Development; Economic Integration; International Trade; Democracy; Political Preferences; Institutions; Trade; Global Range; Economics; Government and Politics
Tabellini, Marco, and Giacomo Magistretti. "Economic Integration and the Transmission of Democracy." Review of Economic Studies (forthcoming). (Pre-published online August 9, 2024. Available also from VOX, VOXEU, Atlantico, The Economist, Domani, and Ideas for India. Longer NBER working paper version available here.)
- January 2021 (Revised June 2021)
- Case
Eaton Corporation: Portfolio Transformation and the Cost of Capital (Abridged)
By: Benjamin C. Esty, E. Scott Mayfield and Daniel Fisher
In 2000, Eaton Corporation was a broadly diversified industrial conglomerate. But its strategy was evolving and its focus was narrowing around “power management” and more recently on “intelligent power,” the use of digitally enabled products and services designed to... View Details
Keywords: Mergers and Acquisitions; Business Conglomerates; Business Divisions; Cost of Capital; Corporate Finance; Value; Valuation; Industrial Products Industry; United States; Denmark; Republic of Ireland
Esty, Benjamin C., E. Scott Mayfield, and Daniel Fisher. "Eaton Corporation: Portfolio Transformation and the Cost of Capital (Abridged)." Harvard Business School Case 221-070, January 2021. (Revised June 2021.)
- Article
Human Capital and the Future of Work: Implications for Investors and ESG Integration
By: Sakis Kotsantonis and George Serafeim
Human capital development (HCD) is a key consideration for most companies, but only recently have investors focused on understanding the risks and opportunities related to human capital with the emergence of environmental, social, and governance (ESG) investment... View Details
Keywords: Future Of Work; ESG; Employee Engagement; Employee Compensation; Human Capital; Human Resources; Employees; Compensation and Benefits; Wages
Kotsantonis, Sakis, and George Serafeim. "Human Capital and the Future of Work: Implications for Investors and ESG Integration." Journal of Financial Transformation 51 (April 2020): 115–130.
- January 2013
- Article
Preference Heterogeneity and Optimal Capital Income Taxation
By: Mikhail Golosov, Maxim Troshkin, Aleh Tsyvinski and Matthew Weinzierl
We examine a prominent justification for capital income taxation: goods preferred by those with high ability ought to be taxed. In an environment where commodity taxes are allowed to be nonlinear functions of income and consumption, we derive an analytical expression... View Details
Keywords: Taxation
Golosov, Mikhail, Maxim Troshkin, Aleh Tsyvinski, and Matthew Weinzierl. "Preference Heterogeneity and Optimal Capital Income Taxation." Journal of Public Economics 97 (January 2013): 160–175. (Also NBER Working Paper Series, No. 16619, December 2010.)