Publications

November 2010
Article

Capitalizing on the Underdog Effect

By: Anat Keinan, Neeru Paharia and Jill Avery

This article presents the results of a study that investigated the use of the underdog effect in marketing. The idea of triumphing over disadvantages by impassioned determination is said to be a powerfully positive image, which can lead consumers to choose a brand over... View Details

Keywords: Marketing; Brand Management; Brands; Brand Positioning; Competitive Positioning; Competition; Brands and Branding; Advertising Campaigns; Marketing Communications; Marketing Strategy; Advertising Industry; Apparel and Accessories Industry; Beauty and Cosmetics Industry; Consumer Products Industry; Fashion Industry; Food and Beverage Industry

Purchase

October 2023
Article

Stock Market Stimulus

By: Robin Greenwood, Toomas Laarits and Jeffrey Wurgler

We study the stock market effects of the arrival of the three rounds of “stimulus checks” to U.S. taxpayers and the single round of direct payments to Hong Kong citizens. The first two rounds of U.S. checks appear to have increased retail buying and share prices of... View Details

Keywords: Stock Market; COVID-19 Pandemic; Fiscal Stimulus; Stimulus Payments; Impact; Stocks; System Shocks; Price; Spending; United States; Hong Kong

Article

The Unprecedented Stock Market Reaction to COVID-19

By: Scott Baker, Nicholas Bloom, Steven J. Davis, Kyle Kost, Marco Sammon and Tasaneeya Viratyosin

No previous infectious disease outbreak, including the Spanish Flu, has impacted the stock market as forcefully as the COVID-19 pandemic. In fact, previous pandemics left only mild traces on the U.S. stock market. We use text-based methods to develop these points with... View Details

Keywords: COVID-19; Stock Market; Health Pandemics; Governance; Policy; Financial Markets

January 2001
Article

Estimating the Performance Effects of Business Groups in Emerging Markets

By: Tarun Khanna and J. Rivkin

Keywords: Performance; Groups and Teams; Emerging Markets

Purchase

May 2023
Article

Equilibrium Effects of Pay Transparency

By: Zoë B. Cullen and Bobak Pakzad-Hurson

The public discourse around pay transparency has focused on the direct effect: how workers seek to rectify newly-disclosed pay inequities through renegotiations. The question of how wage-setting and hiring practices of the firm respond in equilibrium has received... View Details

Keywords: Pay Transparency; Online Labor Market; Privacy; Wage Gap; Corporate Disclosure; Wages; Negotiation

2022
Working Paper

Stock Market Stimulus

By: Robin Greenwood, Toomas Laarits and Jeffrey Wurgler

We study the stock market effects of the arrival of the three rounds of “stimulus checks” to U.S. taxpayers and the single round of direct payments to Hong Kong citizens. The first two rounds of U.S. checks appear to have increased retail buying and share prices of... View Details

Keywords: Stock Market; COVID-19 Pandemic; Fiscal Stimulus; Stimulus Payments; Impact; Stocks; System Shocks; Price; Spending; United States; Hong Kong; China

2007
Other Unpublished Work

Effects of Inventory on Demand for Rentals in the Home Video Market

By: Ioannis Ioannou, Julie Mortimer and Richard Mortimer

Retailer inventory decisions can greatly influence observed demand for a product by affecting, among other things, product availability (stock-outs) and product visibility in the store. These inventory decisions are affected by numerous factors including vertical... View Details

Keywords: Decisions; Demand and Consumers; Supply Chain Management; Competition; Contracts; Entertainment and Recreation Industry; United States

October 2014
Module Note

Market Design in Online Businesses (Abridged)

By: Peter Coles and Benjamin Edelman

The purpose of this note is to characterize the challenges entrepreneurs may face in creating a well-functioning ecosystem of users, and to equip entrepreneurs with tools to overcome these obstacles. The note is meant to accompany the final module of the "The Online... View Details

Keywords: Platform Design; Network Effects; Market Design; Information Technology Industry; Information Industry; Advertising Industry

Purchase

Article

Does 'Liking' Lead to Loving? The Impact of Joining a Brand's Social Network on Marketing Outcomes

By: Leslie K. John, Oliver Emrich, Sunil Gupta and Michael I. Norton

Does “liking” a brand on Facebook cause a person to view it more favorably? Or is “liking” simply a symptom of being fond of a brand? We disentangle these possibilities and find evidence for the latter: brand attitudes and purchasing are predicted by consumers’... View Details

Keywords: Brands; Marketing Effectiveness; Brand Evaluation; Peer Influence; Brands and Branding; Social and Collaborative Networks; Social Media

July 2020
Article

Recovering the Logic of Double Effect for Business: Intentions, Proportionality, and Impermissible Harms

By: Rosemarie Monge and Nien-hê Hsieh

Business actors often act in ways that may harm other parties. While the law aims to restrict harmful behavior and to provide remedies, legal systems do not anticipate all contingencies and legal regulations are not always well enforced. This article argues that the... View Details

Keywords: Double Effect; Intention; Exploitation; Risk; Practical Ethics; Competition; Risk and Uncertainty; Ethics

2025
Working Paper

Enhancing Treatment Effect Prediction on Privacy-Protected Data: An Honest Post-Processing Approach

By: Ta-Wei Huang and Eva Ascarza

As firms increasingly rely on customer data for personalization, concerns over privacy and regulatory compliance have grown. Local Differential Privacy (LDP) offers strong individual-level protection by injecting noise into data before collection. While... View Details

Keywords: Targeted Intervention; Conditional Average Treatment Effect Estimation; Differential Privacy; Honest Estimation; Post-processing; Analytics and Data Science; Consumer Behavior; Marketing

SSRN

02 Apr 2009
Working Paper Summaries

The Flattening Firm and Product Market Competition: The Effect of Trade Liberalization

Keywords: by Maria Guadalupe & Julie M. Wulf

14 Jan 2009
Working Paper Summaries

Smart Money: The Effect of Education, Cognitive Ability, and Financial Literacy on Financial Market Participation

Keywords: by Shawn Cole & Gauri Kartini Shastry; Education; Financial Services

2009
Working Paper

Strategic Interactions in Two-Sided Market Oligopolies

By: Emmanuel Farhi and Andrei Hagiu

Strategic interactions between two-sided platforms depend not only on whether their decision variables are strategic complements or substitutes as for one-sided firms, but also -and crucially so- on whether or not the platforms subsidize one side of the market in... View Details

Keywords: Two-Sided Markets; Strategic Complements; Strategic Substitutes; Cost; Investment; Profit; One-Sided Platforms; Two-Sided Platforms; Duopoly and Oligopoly; Competitive Advantage