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- Faculty Publications (5,716)
Show Results For
- All HBS Web
(10,256)
- People (22)
- News (1,561)
- Research (7,268)
- Events (98)
- Multimedia (65)
- Faculty Publications (5,716)
- 2006
- Conference Paper
Modeling Repeated Play of the Prisoners' Dilemma with Reinforcement Learning over an Enriched Strategy Set
By: A. E. Roth and Ido Erev
- April 2021 (Revised March 2024)
- Case
Social Media War 2021: Snap vs. Facebook vs. TikTok
By: David B. Yoffie and Daniel Fisher
This case explores the competitive war between Snap, Facebook, and TikTok in 2021. The strategic focus is on Snapchat: how should it respond to the emergence of TikTok, and how should it compete with the dominant competitor in its space—Facebook. The case examines... View Details
Keywords: Strategy Development; Competitor Analysis; Strategy; Network Effects; Competitive Strategy; Decision Choices and Conditions; Social Media
Yoffie, David B., and Daniel Fisher. "Social Media War 2021: Snap vs. Facebook vs. TikTok." Harvard Business School Case 721-443, April 2021. (Revised March 2024.)
- 2020
- Working Paper
Internal Models, Make Believe Prices, and Bond Market Cornering
By: Ishita Sen and Varun Sharma
Exploiting position-level heterogeneity in regulatory incentives to misreport and novel data on regulators, we document that U.S. life insurers inflate the values of corporate bonds using internal models. We estimate an additional $9-$18 billion decline in regulatory... View Details
Keywords: Life Insurers; Capital Regulation; Internal Models; Corporate Bonds; Regulatory Supervision; Concentrated Ownership; Bonds; Capital; Governing Rules, Regulations, and Reforms; Insurance; Investment Portfolio
Sen, Ishita, and Varun Sharma. "Internal Models, Make Believe Prices, and Bond Market Cornering." Working Paper, June 2020.
- 26 Oct 2015
- Working Paper Summaries
Applications of Fractional Response Model to the Study of Bounded Dependent Variables in Accounting Research
- March–April 2014
- Article
The Low-Risk Anomaly: A Decomposition into Micro and Macro Effects
By: Malcolm Baker, Brendan Bradley and Ryan Taliaferro
Low beta stocks have offered a combination of low risk and high returns. We decompose the anomaly into micro and macro components. The micro component comes from the selection of low beta stocks. The macro component comes from the selection of low beta countries or... View Details
Keywords: Low Volatility; Beta; Portfolio Construction; Market Efficiency; Capital Asset Pricing Model; Asset Management
Baker, Malcolm, Brendan Bradley, and Ryan Taliaferro. "The Low-Risk Anomaly: A Decomposition into Micro and Macro Effects." Financial Analysts Journal 70, no. 2 (March–April 2014): 43–58.
- 2018
- Working Paper
Bayesian Ensembles of Binary-Event Forecasts: When Is It Appropriate to Extremize or Anti-Extremize?
By: Kenneth C. Lichtendahl Jr., Yael Grushka-Cockayne, Victor Richmond R. Jose and Robert L. Winkler
Many organizations face critical decisions that rely on forecasts of binary events. In these situations, organizations often gather forecasts from multiple experts or models and average those forecasts to produce a single aggregate forecast. Because the average... View Details
Keywords: Forecast Aggregation; Linear Opinion Pool; Generalized Additive Model; Generalized Linear Model; Stacking.; Forecasting and Prediction
Lichtendahl, Kenneth C., Jr., Yael Grushka-Cockayne, Victor Richmond R. Jose, and Robert L. Winkler. "Bayesian Ensembles of Binary-Event Forecasts: When Is It Appropriate to Extremize or Anti-Extremize?" Harvard Business School Working Paper, No. 19-041, October 2018.
The Contract Year Phenomenon in the Corner Office: An Analysis of Firm Behavior During CEO Contract Renewals
This paper investigates how executive employment contracts influence corporate financial policies during the final year of the contract term, using a new, hand-collected data set of CEO employment agreements. On the one hand, the impending... View Details
- 2005
- Working Paper
Additive Rules for the Quasi-linear Bargaining Problem
By: Christopher P. Chambers and Jerry R. Green
We study the class of additive rules for the quasi-linear bargaining problem introduced by Green. We provide a characterization of the class of all rules that are e¢ cient, translation invariant, additive, and continuous. We present several subfamilies of rules: the... View Details
Keywords: Econometric Models
Chambers, Christopher P., and Jerry R. Green. "Additive Rules for the Quasi-linear Bargaining Problem." Working Paper, January 2005.
- September–October 2013
- Article
The Dynamic Advertising Effect of Collegiate Athletics
By: Doug J. Chung
I measure the spillover effect of intercollegiate athletics on the quantity and quality of applicants to institutions of higher education in the United States, popularly known as the "Flutie Effect." I treat athletic success as a stock of goodwill that decays over... View Details
Keywords: Choice Modeling; Entertainment Marketing; Heterogeneity; Panel Data; Structural Modeling; Rights; Analytics and Data Science; Higher Education; Ethics; Consumer Behavior; Advertising; Sports; Advertising Industry; Education Industry
Chung, Doug J. "The Dynamic Advertising Effect of Collegiate Athletics." Marketing Science 32, no. 5 (September–October 2013): 679–698. (Lead article. Featured in HBS Working Knowledge.)
- 2014
- Working Paper
The Contract Year Phenomenon in the Corner Office: An Analysis of Firm Behavior During CEO Contract Renewals
By: Ping Liu and Yuhai Xuan
This paper investigates how executive employment contracts influence corporate financial policies during the final year of the contract term, using a new, hand-collected data set of CEO employment agreements. On the one hand, the impending expiration of fixed-term... View Details
Liu, Ping, and Yuhai Xuan. "The Contract Year Phenomenon in the Corner Office: An Analysis of Firm Behavior During CEO Contract Renewals." Working Paper, April 2014.
- 29 Nov 2016
- Working Paper Summaries
Fiscal Risk and the Portfolio of Government Programs
- September 2016 (Revised March 2017)
- Module Note
Strategy Execution Module 3: Using Information for Performance Measurement and Control
By: Robert Simons
This module reading explains how managers use information to control critical business processes and outcomes. The analysis begins by illustrating how managers use information to communicate goals and track performance. Then the focus turns to the choices that managers... View Details
Keywords: Management Control Systems; Implementing Strategy; Strategy Execution; Organization Process; Feedback Model; Innovation; Uses Of Information; Big Data; Benchmarking; Decision Making; Information; Performance Evaluation; Analytics and Data Science
Simons, Robert. "Strategy Execution Module 3: Using Information for Performance Measurement and Control." Harvard Business School Module Note 117-103, September 2016. (Revised March 2017.)
- July 18, 2025
- Article
Using Gen AI for Early-Stage Market Research
By: James Brand, Ayelet Israeli and Donald Ngwe
Generative AI, particularly large language models (LLMs), offers a promising new tool for early-stage market research by simulating customer responses to product concepts. This can allow companies to draw conclusions similar to those they’d obtain by survey customers... View Details
Keywords: Large Language Models; Large Language Model; Generative Ai; Artificial Intelligence; Market Research; Research; Marketing; AI and Machine Learning; Analytics and Data Science; Analysis; Customers; Consumer Behavior; Technology Industry; Information Technology Industry
Brand, James, Ayelet Israeli, and Donald Ngwe. "Using Gen AI for Early-Stage Market Research." Harvard Business Review (website) (July 18, 2025).
- August 2013 (Revised November 2020)
- Case
Tesla Motors
In mid-2013, Tesla Motors was riding a wave of success: It had launched its first really mass-produced car—the model S—to rave reviews; had recently raised first-year production targets; and had started taking orders for its next car, the Model X. Tesla seemed to be on... View Details
Keywords: Barriers To Entry; Economic Analysis; Learning Curve; Economies Of Scale; Innovation; Market Entry; Sustainable Competitive Advantage; Vision; Strategy And Leadership; Strategy; Competitive Strategy; Market Entry and Exit; Competitive Advantage; Technological Innovation; Leadership; Learning; Economics; Analysis; Auto Industry
Van den Steen, Eric. "Tesla Motors." Harvard Business School Case 714-413, August 2013. (Revised November 2020.)
- November 2017
- Article
A Retrospective Analysis of Hypertension Screening at a Mass Gathering in India: Implications for Non-communicable Disease Control Strategies
By: S. Balsari, P. Vemulapalli, M. Gofine, K. Oswal, R. Merchant, S. Saunik, G. Greenough and T. Khanna
Cardiovascular disease is the leading cause of mortality from noncommunicable diseases (NCD) in India. The government’s National Programme for Prevention and Control of Cancer, Diabetes, Cardiovascular Diseases and Stroke seeks to increase capacity building, screening,... View Details
Balsari, S., P. Vemulapalli, M. Gofine, K. Oswal, R. Merchant, S. Saunik, G. Greenough, and T. Khanna. "A Retrospective Analysis of Hypertension Screening at a Mass Gathering in India: Implications for Non-communicable Disease Control Strategies." Journal of Human Hypertension 31, no. 11 (November 2017): 750–753.