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Show Results For
- All HBS Web
(2,449)
- People (7)
- News (511)
- Research (1,436)
- Events (20)
- Multimedia (1)
- Faculty Publications (580)
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- February 2024
- Article
Pricing Power in Advertising Markets: Theory and Evidence
By: Matthew Gentzkow, Jesse M. Shapiro, Frank Yang and Ali Yurukoglu
Existing theories of media competition imply that advertisers will pay a lower price in equilibrium to reach consumers who multi-home across competing outlets. We generalize, extend, and test this prediction. We find that television outlets whose viewers watch more... View Details
Gentzkow, Matthew, Jesse M. Shapiro, Frank Yang, and Ali Yurukoglu. "Pricing Power in Advertising Markets: Theory and Evidence." American Economic Review 114, no. 2 (February 2024): 500–533.
- 2023
- Article
Estimating Causal Peer Influence in Homophilous Social Networks by Inferring Latent Locations.
By: Edward McFowland III and Cosma Rohilla Shalizi
Social influence cannot be identified from purely observational data on social networks, because such influence is generically confounded with latent homophily, that is, with a node’s network partners being informative about the node’s attributes and therefore its... View Details
Keywords: Causal Inference; Homophily; Social Networks; Peer Influence; Social and Collaborative Networks; Power and Influence; Mathematical Methods
McFowland III, Edward, and Cosma Rohilla Shalizi. "Estimating Causal Peer Influence in Homophilous Social Networks by Inferring Latent Locations." Journal of the American Statistical Association 118, no. 541 (2023): 707–718.
- March 2002 (Revised May 2002)
- Case
Genzyme: Engineering the Market for Orphan Drugs
Genzyme has made money with external technology in orphan drug markets generally considered to be too small to be attractive to other drug companies. Now competition is entering these same markets, placing Genzyme's business model under new pressures. View Details
Keywords: Business Model; Information Technology; Market Entry and Exit; Biotechnology Industry; Pharmaceutical Industry
Chesbrough, Henry W., and Clarissa Ceruti. "Genzyme: Engineering the Market for Orphan Drugs." Harvard Business School Case 602-147, March 2002. (Revised May 2002.)
- May 2016
- Article
Matching with Slot-Specific Priorities: Theory
By: Scott Duke Kominers and Tayfun Sönmez
We introduce a two-sided, many-to-one matching with contracts model in which agents with unit demand match to branches that may have multiple slots available to accept contracts. Each slot has its own linear priority order over contracts; a branch chooses contracts by... View Details
Keywords: Matching With Contracts; Stability; Strategy-proofness; School Choice; Affirmative Action; Airline Seat Upgrades; Contracts; Market Design; Marketplace Matching; Balance and Stability
Kominers, Scott Duke, and Tayfun Sönmez. "Matching with Slot-Specific Priorities: Theory." Theoretical Economics 11, no. 2 (May 2016): 683–710.
- March 2008 (Revised April 2008)
- Case
Sony PlayStation 3: Game Over?
By: Elie Ofek
Outlines the challenges faced by Sony with the launch of its PlayStation 3. Information on the 2006 and 2007 holiday seasons and the success of rival consoles is outlined. In addition, the case allows examining the costs and revenues associated with a business model... View Details
Keywords: Business Model; Games, Gaming, and Gambling; Cost; Revenue; Product Launch; Sales; Competition; Hardware; Entertainment and Recreation Industry
Ofek, Elie. "Sony PlayStation 3: Game Over?" Harvard Business School Case 508-076, March 2008. (Revised April 2008.)
- September 2006
- Article
Dynamic Scoring: A Back-of-the-Envelope Guide
By: Matthew C. Weinzierl and N. Gregory Mankiw
This paper uses the neoclassical growth model to examine the extent to which a tax cut pays for itself through higher economic growth. The model yields simple expressions for the steady-state feedback effect of a tax cut. The feedback is surprisingly large: for... View Details
Weinzierl, Matthew C., and N. Gregory Mankiw. "Dynamic Scoring: A Back-of-the-Envelope Guide." Journal of Public Economics 90, no. 8 (September 2006): 1415–1433.
- 2023
- Article
Probabilistically Robust Recourse: Navigating the Trade-offs between Costs and Robustness in Algorithmic Recourse
By: Martin Pawelczyk, Teresa Datta, Johannes van-den-Heuvel, Gjergji Kasneci and Himabindu Lakkaraju
As machine learning models are increasingly being employed to make consequential decisions in real-world settings, it becomes critical to ensure that individuals who are adversely impacted (e.g., loan denied) by the predictions of these models are provided with a means... View Details
Pawelczyk, Martin, Teresa Datta, Johannes van-den-Heuvel, Gjergji Kasneci, and Himabindu Lakkaraju. "Probabilistically Robust Recourse: Navigating the Trade-offs between Costs and Robustness in Algorithmic Recourse." Proceedings of the International Conference on Learning Representations (ICLR) (2023).
- Research Summary
A Strategic Rationale for Having Overconfident Managers, 2004
We analyze whether it might be desirable for a firm to hire an overconfident manager for strategic reasons. We analyze a tournament type version of Bertrand competition and a linear demand Cournot model. In each case there is an R&D stage where firms can invest in cost... View Details
- May 2016
- Case
The Inexorable Rise of Walmart? 1988—2016
By: John R. Wells and Gabriel Ellsworth
In October 2015, Walmart surprised investors by announcing that it expected flat sales growth for 2015 and growth of only 3% to 4% over the coming three years. Profits would also fall due to significant investments in people and technology. The company’s stock price... View Details
Keywords: Asda; Costco; David Glass; Convenience Stores; Discount Retailing; Dollar Stores; Doug McMillon; E-commerce; Online Retail; General Merchandise; Grocery; Lee Scott; Mike Duke; Multichannel Retailing; Omnichannel; Neighborhood Market; Sam Walton; Sam's Club; Store Formats; Supercenter; Supermarket; Warehouse Clubs; Merchandising; Walmart; Wal-Mart; Globalized Firms and Management; Competitive Strategy; Corporate Strategy; Growth and Development Strategy; Business Units; Business Divisions; Business Growth and Maturation; Business Model; Business Organization; For-Profit Firms; Film Entertainment; Television Entertainment; Banks and Banking; Price; Profit; Revenue; Food; Global Range; Cross-Cultural and Cross-Border Issues; Global Strategy; Business History; Compensation and Benefits; Employees; Human Capital; Labor Unions; Wages; Business or Company Management; Goals and Objectives; Management Succession; Brands and Branding; Product Positioning; Distribution; Supply Chain; Supply Chain Management; Public Ownership; Problems and Challenges; Labor and Management Relations; Strategy; Adaptation; Business Strategy; Competition; Competitive Advantage; Diversification; Expansion; Segmentation; Information Technology; Internet; Mobile Technology; Online Technology; Web; Web Sites; Retail Industry; Food and Beverage Industry; Distribution Industry; Banking Industry; United States; Arkansas; Bentonville
Wells, John R., and Gabriel Ellsworth. "The Inexorable Rise of Walmart? 1988—2016." Harvard Business School Case 716-426, May 2016.
- Article
Optimal Capital-Gains Taxation under Limited Information
By: Jerry R. Green and Eytan Sheshinski
Taxation of capital gains at realization may distort individuals' decisions regarding holding or selling during an asset's lifetime. This creates the problem of designing a tax structure for capital gains so as to induce efficient patterns of holding and selling.... View Details
Green, Jerry R., and Eytan Sheshinski. "Optimal Capital-Gains Taxation under Limited Information." Journal of Political Economy 86, no. 6 (December 1978): 1143–1158.
- 2009
- Working Paper
Integrity: Without It Nothing Works
By: Michael C. Jensen
There is confusion between integrity, morality and ethics. In our much longer paper on the topic (see "Integrity: A Positive Model that Incorporates the Normative Phenomena of Morality, Ethics and Legality" (available at http://ssrn.com/abstract=920625)) my co-authors,... View Details
- March 2020
- Supplement
People Analytics at Teach For America (B)
By: Jeffrey T. Polzer and Julia Kelley
This is a supplement to the People Analytics at Teach For America (A) case. In this supplement, situated one year after the A case, Managing Director Michael Metzger must decide how to apply his team's predictive models generated from the previous year’s data. View Details
Keywords: Analytics; Human Resource Management; Data; Workforce; Hiring; Talent Management; Forecasting; Predictive Analytics; Organizational Behavior; Recruiting; Analytics and Data Science; Forecasting and Prediction; Recruitment; Selection and Staffing; Talent and Talent Management
Polzer, Jeffrey T., and Julia Kelley. "People Analytics at Teach For America (B)." Harvard Business School Supplement 420-086, March 2020.
- Research Summary
Housing Markets with Contingencies
We model a real-estate market with three types of agents: regular buyers and sellers, and homeowners, who are agents who want to sell their current home only if they can buy another one. On the one hand, our model is a counterpart of the Abdulkadiroglu and Sonmez... View Details
- October 1996 (Revised February 1997)
- Case
Saturn Corporation in 1996
Briefly describes the competitive position of the Saturn Corp. in 1996. General Motors has recently announced plans to introduce a mid-sized model under the Saturn brand name. Also provides an update on Saturn's small-car position. View Details
McGahan, Anita M., and Suzanne Purdy. "Saturn Corporation in 1996." Harvard Business School Case 797-052, October 1996. (Revised February 1997.)
- August 2013 (Revised November 2013)
- Case
Ford vs. GM: The Evolution of Mass Production (A)
By: Willy Shih
This case explores the very different paths taken by the Ford Motor Company and the General Motors Corporation in the first three decades of the twentieth century. Henry Ford's Model T was a car for the masses. After considerable experimentation, Ford Motor... View Details
Keywords: Innovation; Exploration; Dominant Design; Business Growth and Maturation; Business History; Innovation and Management; Innovation Strategy; Technological Innovation; Leading Change; Growth and Development Strategy; Product Positioning; Product Design; Product Development; Business Strategy; Corporate Strategy; Vertical Integration; Auto Industry; Manufacturing Industry; Michigan
Shih, Willy. "Ford vs. GM: The Evolution of Mass Production (A)." Harvard Business School Case 614-010, August 2013. (Revised November 2013.)
- April 2017
- Case
Yushan Bicycles: Learning to Ride Abroad
By: Christopher A. Bartlett and Paul S. Myers
Yushan Bicycles, one of Taiwan's leading bicycle manufacturers, is pursuing an international expansion strategy by increasing demand for its range of traditional and electric bicycles and shifting its product mix toward higher-margin models sold through specialty... View Details
Keywords: Globalized Firms and Management; Growth and Development Strategy; Competitive Strategy; Conflict Management; Learning; Bicycle Industry; Taiwan; Australia
Bartlett, Christopher A., and Paul S. Myers. "Yushan Bicycles: Learning to Ride Abroad." Harvard Business School Brief Case 917-539, April 2017.
- August 2018 (Revised October 2020)
- Case
Tailor Brands: Artificial Intelligence-Driven Branding
By: Jill Avery
Using proprietary artificial intelligence technology, startup Tailor Brands set out to democratize branding by allowing small businesses to create their brand identities by automatically generating logos in just minutes at minimal cost with no branding or design skills... View Details
Keywords: Startup; Services; Artificial Intelligence; Machine Learning; Digital Marketing; Brand Management; Big Data; Internet Marketing; Analytics; Marketing; Marketing Strategy; Brands and Branding; Information Technology; Entrepreneurship; Venture Capital; Business Model; Consumer Behavior; AI and Machine Learning; Analytics and Data Science; Advertising Industry; Service Industry; Technology Industry; United States; North America; Israel
Avery, Jill. "Tailor Brands: Artificial Intelligence-Driven Branding." Harvard Business School Case 519-017, August 2018. (Revised October 2020.)
- October 2018
- Article
The Operational Value of Social Media Information
By: Ruomeng Cui, Santiago Gallino, Antonio Moreno and Dennis J. Zhang
While the value of using social media information has been established in multiple business contexts, the field of operations and supply chain management have not yet explored the possibilities it offers in improving firms' operational decisions. This study attempts to... View Details
Cui, Ruomeng, Santiago Gallino, Antonio Moreno, and Dennis J. Zhang. "The Operational Value of Social Media Information." Special Issue on Big Data in Supply Chain Management. Production and Operations Management 27, no. 10 (October 2018): 1749–1774.
- September 2019
- Article
Trading Networks with Frictions
By: Tamás Fleiner, Ravi Jagadeesan, Zsuzsanna Jankó and Alexander Teytelboym
We show how frictions and continuous transfers jointly affect equilibria in a model of matching in trading networks. Our model incorporates distortionary frictions such as transaction taxes and commissions. When contracts are fully substitutable for firms, competitive... View Details
Keywords: Trading Networks; Frictions; Competitive Equilibrium; Matching With Contracts; Stability; Trail Stability
Fleiner, Tamás, Ravi Jagadeesan, Zsuzsanna Jankó, and Alexander Teytelboym. "Trading Networks with Frictions." Econometrica 87, no. 5 (September 2019): 1633–1661.
- Article
Variance-Minimizing Monetary Policies with Lagged Price Adjustment and Rational Expectations
By: Jerry R. Green and Seppo Honkapohja
This paper considers a macroeconomic model with rational expectations in which prices are incompletely flexible. Markets therefore fail to clear. In such a model monetary policy is not neutral. The variance of real and nominal quantities and interest rates is sensitive... View Details
Green, Jerry R., and Seppo Honkapohja. "Variance-Minimizing Monetary Policies with Lagged Price Adjustment and Rational Expectations." European Economic Review 20, nos. 1-3 (January 1983): 123–141.