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- All HBS Web (339)
- Faculty Publications (193)
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- All HBS Web (339)
- Faculty Publications (193)
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- 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.
- 2013
- Working Paper
Competing Ad Auctions
By: Itai Ashlagi, Benjamin Edelman and Hoan Soo Lee
We present a two-stage model of competing ad auctions. Search engines attract users via Cournot-style competition. Meanwhile, each advertiser must pay a participation cost to use each ad platform, and advertiser entry strategies are derived using symmetric Bayes-Nash... View Details
Keywords: Online Advertising; Auctions; Market Participation; Market Platforms; Mathematical Methods; Competition
Ashlagi, Itai, Benjamin Edelman, and Hoan Soo Lee. "Competing Ad Auctions." Harvard Business School Working Paper, No. 10-055, January 2010. (Revised May 2010, February 2011, September 2013.)
- Research Summary
Nominal versus Indexed Debt: A Quantitative Horse Race (joint with Fabio Kanczuk)
By: Laura Alfaro
There are different arguments in favor and against nominal and indexed debt which broadly include the incentive to default through inflation versus hedging against unforeseen shocks. We model these arguments and calibrate the model to assess the quantitative importance... View Details
- Forthcoming
- Article
Dynamic Competition for Customer Memberships
By: Cristian Chica, Julian Jimenez-Cardenas and Jorge Tamayo
A competitive two-period membership (subscription) market is analyzed. Two symmetric firms charge a “membership” fee that allows consumers to buy products or services at a given unit price for both periods. Firms can choose between long- or short-term memberships. When... View Details
Keywords: Competitive Price Discrimination; Membership; Dynamic Competition; Competition; Price; Consumer Behavior; Business Model
Chica, Cristian, Julian Jimenez-Cardenas, and Jorge Tamayo. "Dynamic Competition for Customer Memberships." Journal of Economics & Management Strategy (forthcoming). (Pre-published online August 12, 2024.)
- Article
Debt Maturity: Is Long-Term Debt Optimal?
By: Laura Alfaro and Fabio Kanczuk
We model and calibrate the arguments in favor and against short-term and long-term debt. These arguments broadly include: maturity premium, sustainability, and service smoothing. We use a dynamic equilibrium model with tax distortions and government... View Details
Keywords: Borrowing and Debt; Investment Return; Development Economics; Taxation; Risk and Uncertainty; Cost; Interest Rates; Developing Countries and Economies; Welfare; United States; Brazil
Alfaro, Laura, and Fabio Kanczuk. "Debt Maturity: Is Long-Term Debt Optimal?" Review of International Economics 17, no. 5 (November 2009): 890–905. (Also Harvard Business School Working Paper, No. 06-005 and NBER Working Paper No. 13119.)
- March 2021
- Article
On the Direct and Indirect Real Effects of Credit Supply Shocks
By: Laura Alfaro, Manuel García-Santana and Enrique Moral-Benito
We explore the real effects of bank-lending shocks and how they permeate the economy through buyer-supplier linkages. We combine administrative data on all Spanish firms with a matched bank-firm-loan dataset of all corporate loans from 2003 to 2013 to estimate... View Details
Keywords: Credit Supply Shocks; Bank Lending Channel; Input-output Linkages; Output; Mechanisms; Trade Credits; Price Effects; Economics; Credit; System Shocks; Employment; Investment; Spain
Alfaro, Laura, Manuel García-Santana, and Enrique Moral-Benito. "On the Direct and Indirect Real Effects of Credit Supply Shocks." Journal of Financial Economics 139, no. 3 (March 2021): 895–921.
- August 2017
- Article
A Formal Theory of Strategy
What makes a decision strategic? When is strategy most important? This paper formally studies these questions, starting from a (functional) definition of strategy as “the smallest set of choices to optimally guide (or force) other choices.” The paper shows that this... View Details
Van den Steen, Eric J. "A Formal Theory of Strategy." Management Science 63, no. 8 (August 2017): 2616–2636.
- Article
Non-verifiability, Costly Renegotiation, and Efficiency
By: Jerry R. Green and J. J. Laffont
We study the implications of the non verifiability of information for the allocation of resources and the bearing of risk in a two party relationship. We consider a two step approach. In step one the two parties define a non contingent contract which will be executed... View Details
Keywords: Negotiation
Green, Jerry R., and J. J. Laffont. "Non-verifiability, Costly Renegotiation, and Efficiency." Annales d'économie et de statistique, no. 36 (October–December 1994): 81–95.
- 2025
- Working Paper
Incentive-Compatible Recovery from Manipulated Signals, with Applications to Decentralized Physical Infrastructure
By: Jason Milionis, Jens Ernstberger, Joseph Bonneau, Scott Duke Kominers and Tim Roughgarden
We introduce the first formal model capturing the elicitation of unverifiable information from a party (the "source") with implicit signals derived by other players (the "observers"). Our model is motivated in part by applications in decentralized physical... View Details
Milionis, Jason, Jens Ernstberger, Joseph Bonneau, Scott Duke Kominers, and Tim Roughgarden. "Incentive-Compatible Recovery from Manipulated Signals, with Applications to Decentralized Physical Infrastructure." Working Paper, March 2025.
- 2015
- Working Paper
Multi-Product Duopoly With Cross-Product Cost Interdependencies
By: Gary Biglaiser and Andrei Hagiu
Many multi-product firms incur a complexity fixed cost when offering different product lines in different quality tiers relative to the case when offering all products lines in the same quality tier (high or low). Such fixed costs create an interdependency between... View Details
Keywords: Multi-product Duopoly; Vertical Differentiation; Fixed Costs; Cost; Profit; Business Strategy; Duopoly and Oligopoly
Biglaiser, Gary, and Andrei Hagiu. "Multi-Product Duopoly With Cross-Product Cost Interdependencies." Harvard Business School Working Paper, No. 16-010, July 2015.
- 2013
- Dictionary Entry
Technology and Innovation Management
By: Elizabeth J. Altman, Frank Nagle and Michael L. Tushman
The goal of this annotated bibliography on technology and innovation is to organize and present the most important literature relevant to a scholar seeking to understand and advance the field. It includes articles that are highly-cited and foundational pieces, as well... View Details
Keywords: Technology; Technological Change; Innovation Streams; Organizational Evolution; Executive Leadership; Organizational Architecture; Information Technology; Technological Innovation; Innovation and Management; Organizational Change and Adaptation; Leadership; Organizational Design
Altman, Elizabeth J., Frank Nagle, and Michael L. Tushman. "Technology and Innovation Management." In Oxford Bibliographies: Management, edited by Ricky W. Griffin. New York: Oxford University Press, 2013. Electronic.
- Article
Why Hospitals Don't Learn from Failures: Organizational and Psychological Dynamics That Inhibit System Change
By: A. Tucker and A. Edmondson
The importance of hospitals learning from their failures hardly needs to be stated. Not only are matters of life and death at stake on a daily basis, but also an increasing number of U.S. hospitals are operating in the red. This article reports on in-depth qualitative... View Details
Tucker, A., and A. Edmondson. "Why Hospitals Don't Learn from Failures: Organizational and Psychological Dynamics That Inhibit System Change." California Management Review 45, no. 2 (Winter 2003). (Winner of Accenture Award For the article published in the California Management Review that has made the most important contribution to improving the practice of management.)
- Research Summary
Working Papers
By: Dennis A. Yao
Lewis, Tracy R. and Dennis A. Yao. (2001, revised 2006). "Innovation, Knowledge Flow, and Worker... View Details
- Research Summary
Information Effects of Jump Bidding in English Auctions (with Dror Lellouche)
Under what circumstances might a bidder find it rational to raise the current offer by a substantial factor instead of making just a small increase above the highest bid? This paper aims to answer this question by exploring the implications of jump bidding over the... View Details
- 2021
- Working Paper
Competitive Two-Part Tariffs
By: Jorge Tamayo and Guofu Tan
We study competitive two-part tariffs in a model of asymmetric duopoly firms that offer (vertically and horizontally) differentiated products. We show that the sign of the markup for each product depends on the average expected demand among all customers as well as the... View Details
Keywords: Product Differentiation; Two-part Tariffs; Marginal-cost Pricing; Cross-subsidization; Competition; Price
Tamayo, Jorge, and Guofu Tan. "Competitive Two-Part Tariffs." Harvard Business School Working Paper, No. 21-089, March 2021. (R&R American Economic Journal: Microeconomics.)
- 2008
- Working Paper
Attitude-Dependent Altruism, Turnout and Voting
By: Julio J. Rotemberg
This paper presents a goal-oriented model of political participation based on two psychological assumptions. The first is that people are more altruistic towards individuals that agree with them and the second is that people's well-being rises when other people share... View Details
Rotemberg, Julio J. "Attitude-Dependent Altruism, Turnout and Voting." NBER Working Paper Series, No. 14302, September 2008.
- 2007
- Working Paper
Optimal Reserve Management and Sovereign Debt
By: Laura Alfaro and Fabio Kanczuk
Most models currently used to determine optimal foreign reserve holdings take the level of international debt as given. However, given the sovereign's willingness-to-pay incentive problems, reserve accumulation may reduce sustainable debt levels. In addition, assuming... View Details
- Article
Two-Sided Platforms: Product Variety and Pricing Structures
By: Andrei Hagiu
This paper provides a new modeling framework to analyze two-sided platforms connecting producers and consumers. In contrast to the existing literature, indirect network effects are determined endogenously, through consumers' taste for variety and producer competition.... View Details
Keywords: Pricing Structure; Indirect Network Effects; Product Variety; Price; Network Effects; Two-Sided Platforms; Product; Renting or Rental; Competition
Hagiu, Andrei. "Two-Sided Platforms: Product Variety and Pricing Structures ." Journal of Economics & Management Strategy 18, no. 4 (Winter 2009).
- February 2009
- Article
Optimal Reserve Management and Sovereign Debt
By: Laura Alfaro and Fabio Kanczuk
Most models currently used to determine optimal foreign reserve holdings take the level of international debt as given. However, given the sovereign's willingness-to-pay incentive problems, reserve accumulation may reduce sustainable debt levels. In addition, assuming... View Details
Keywords: Borrowing and Debt; Motivation and Incentives; Decisions; Emerging Markets; Balance and Stability; Earnings Management; Policy; Interest Rates; International Finance; Cost
Alfaro, Laura, and Fabio Kanczuk. "Optimal Reserve Management and Sovereign Debt." Journal of International Economics 77, no. 1 (February 2009): 23–36. (Also Harvard Business School Working Paper, No. 07-010, 2006 and NBER Working Paper No. 13216.)
- September 2004
- Article
Trust in Agency
Existing models of the principal-agent relationship assume the agent works only under extrinsic incentives. However, many observed agency contracts take the form of a fixed payment. For such contracts to succeed, the principal must trust the agent to work in the... View Details
Keywords: Trust; Agency Theory; Relationships; Behavior; Motivation and Incentives; Contracts; Business Model; Emotions; Forecasting and Prediction; Ethics; Standards; Risk and Uncertainty
Casadesus-Masanell, Ramon. "Trust in Agency." Journal of Economics & Management Strategy 13, no. 3 (September 2004): 375–404.