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Publications
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- 2023
- Working Paper
Estimating Productivity in the Presence of Spillovers: Firm-Level Evidence from the U.S. Production Network
By: Ebehi Iyoha
This paper examines the extent to which productivity gains are transmitted across U.S. firms through buyer-supplier relationships. Many empirical studies measure firm-to-firm spillovers using firm-level productivity estimates derived from control function approaches.... View Details
- October 31, 2023
- Article
Research: Can a More Detailed LinkedIn Profile Boost Your Salary?
By: Boris Groysberg and Eric Lin
Our digital presence impacts how others perceive us. A simple résumé and a list of references no longer captures the essence of our professional capabilities. In this article, the authors explain how the intentional management of our online personas can have a positive... View Details
- 2025
- Working Paper
Bringing Science to Market: Knowledge Foundations, Inventor-Founders, and Performance
By: Justine Boudou and Maria Roche
In this paper, we examine how a startup’s knowledge foundations—embedded in its
core technology—influence its performance in the exit market. Using a dataset of 1,006
biomedicine startups founded between 2005 and 2015, we focus on two key factors: (1)
the degree of... View Details
- September 2023
- Article
Stock Price Reactions to ESG News: The Role of ESG Ratings and Disagreement
By: George Serafeim and Aaron Yoon
We investigate whether ESG ratings predict future ESG news and the associated market reactions. We find that the consensus rating predicts future news, but its predictive ability diminishes for firms with large disagreement between raters. Relation between news and... View Details
Keywords: ESG; ESG (Environmental, Social, Governance) Performance; ESG Disclosure; ESG Ratings; ESG Reporting; ESG Disclosure Metrics; Sustainability; Investments; Disagreement; Rating Disagreement; Ratings; Environmental Sustainability; Social Issues; Corporate Social Responsibility and Impact; Performance; News; Investment; Financial Markets; Stocks; Price
- 2023
- Working Paper
LALIGA—From a Soccer Competition Organizer to a Global Player in the Sports and Entertainment Industry
By: Stephen A. Greyser, Kenneth Cortsen and Juan Fuentes Fernández
LALIGA, the first- and second-tier professional soccer league (known as “football” outside of the U.S. and Canada) in Spain, enters its 100th soccer season later this decade. The most popular game in the world (Giulianotti, 2012) has gone through many changes since... View Details
- 2024
- Working Paper
Second- versus Third-party Audit Quality: Evidence from Global Supply Chain Monitoring
By: Maria R. Ibanez, Ashley Palmarozzo, Jodi L. Short and Michael W. Toffel
Capitalizing on the superior credibility and flexibility and potential lower cost of external assessments, many global buyers are relying less on their own employee (“second-party”) auditors and more on third-party auditors to monitor and prevent environmental and... View Details
- 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
- March–April 2023
- Article
Pricing for Heterogeneous Products: Analytics for Ticket Reselling
By: Michael Alley, Max Biggs, Rim Hariss, Charles Herrmann, Michael Lingzhi Li and Georgia Perakis
Problem definition: We present a data-driven study of the secondary ticket market. In particular, we are primarily concerned with accurately estimating price sensitivity for listed tickets. In this setting, there are many issues including endogeneity, heterogeneity in... View Details
- March 2023
- Case
MrBeast: Building a YouTube Empire
By: Anita Elberse and Oliver Band
Wednesday November 16, 2022 was a historic day in the ascent of Jimmy Donaldson, better known as MrBeast, to the top echelon of YouTube creators. That day he became the YouTuber with the most subscribers ever—a total of 112 million. The meteoric rise of the 24-year-old... View Details
- February 2023
- Case
Grupo Sancor Seguros: Facing the Digital Transformation of Insurance in Argentina (A)
By: Jorge Tamayo and Jenyfeer Martínez Buitrago
In 2020, Alejandro Simón, CEO of Sancor Seguros Group, a nearly 75-year-old cooperative that had become Argentina’s insurance leader, had to decide about the Group’s digital transformation strategy. The Group’s values and history needed to be considered during the... View Details
- February 2023
- Article
Homophily and Acrophily as Drivers of Political Segregation
By: Amit Goldenberg, Joseph M. Abruzzo, Zi Huang, Jonas Schone, David Bailey, Robb Willer, Eran Halperin and James J. Gross
Political segregation is an important social problem, increasing polarization and impeding effective governance. Previous work has viewed the central driver of segregation to be political homophily, the tendency to associate with others who have similar views. Here we... View Details
- December 2022
- Case
Mission Produce in 2022
By: Forest Reinhardt, Jose B. Alvarez and Natalie Kindred
Founded by CEO Steve Barnard in 1983, California-based Mission Produce was a leading supplier of Hass avocados with a global sourcing, marketing, and distribution network and $892 million in 2021 sales. Barnard had been influential in the global avocado trade’s... View Details
- October 2022
- Supplement
The SAH Group: The Time is Right, Instructor Spreadsheet
By: Juan Alcacer and Alpana Thapar
In January 2021, Jalila Mezni, CEO of the SAH Group, was preparing to present the company’s future growth plans to its board of directors. The Tunisian company was a leading producer and distributor of personal care and packaged hygiene products. In 2019, it expanded... View Details
- October 2022
- Supplement
The SAH Group: The Time is Right, Spreadsheet Supplement
By: Juan Alcacer and Alpana Thapar
In January 2021, Jalila Mezni, CEO of the SAH Group, was preparing to present the company’s future growth plans to its board of directors. The Tunisian company was a leading producer and distributor of personal care and packaged hygiene products. In 2019, it expanded... View Details
- October 2022
- Case
Afrigen Biologics: Vaccines for the Global South
By: Debora L. Spar and Julia Comeau
The majority of vaccines used on the continent of Africa (99%) are produced offshore. This makes African nations reliant on the West for major health care needs, a problem which was exacerbated by the COVID-19 pandemic. Afrigen Biologics (in partnership with the WHO)... View Details
- October 2022 (Revised August 2024)
- Case
Cigna-Express Scripts: Can a Vertical Merger Rescue an Industry Under Attack?
By: Leemore Dafny
In Fall 2019, Cigna Corporation – a global health services company with a significant presence in the U.S. employer-sponsored health insurance market - was digesting its $54 billion acquisition of Express Scripts, Inc. (ESI), a pharmacy benefit manager (PBM)... View Details
- Article
Recovering Investor Expectations from Demand for Index Funds
By: Mark Egan, Alexander J. MacKay and Hanbin Yang
We use a revealed-preference approach to estimate investor expectations of stock market returns. Using data on demand for index funds that follow the S&P 500, we develop and estimate a model of investor choice to flexibly recover the time-varying distribution of... View Details
- 2025
- Working Paper
Algorithmic Assortment Curation: An Empirical Study of Buybox in Online Marketplaces
By: Santiago Gallino, Nil Karacaoglu and Antonio Moreno
Most online sales worldwide take place in marketplaces that connect sellers and buyers. The presence of numerous third-party sellers leads to a proliferation of listings for each product, making it difficult for customers to choose between the available options. Online... View Details
- August 2022
- Article
The Bulletproof Glass Effect: Unintended Consequences of Privacy Notices
By: Aaron R. Brough, David A. Norton, Shannon L. Sciarappa and Leslie K. John
Drawing from a content analysis of publicly traded companies’ privacy notices, a survey of managers, a field study, and five online experiments, this research investigates how consumers respond to privacy notices. A privacy notice, by placing legally enforceable limits... View Details
- July 2022
- Teaching Note
Arçelik (A), (B): From a Dealer Network to an Omnichannel Experience
By: Ayelet Israeli, Fares Khrais and Menna Hassan
Arçelik Turkey, the country’s market leader in household appliances, was at an omnichannel crossroads in January 2020. Arçelik was a B2B player utilizing a dealership network with an umbrella of brands and had one of the largest brick-and-mortar store networks in... View Details
Keywords: Digital Marketing; Bricks And Mortar; Franchise Management; Franchising; Dealer Network; Dealers; B2B; B2B2C; Tradition; Culture Change; Cultural Adaptation; Omnichannel; Omnichannel Retail; Omni-channel; Omnichannel Retailing; Sales Channels; Sales Channel Development; Channel Management; Channels Of Distribution; Marketplace; Platforms; Collaboration; Online Channel; Online Data; Online Sales; Online Shopping; Online; Retail; Retailing; Disruption; Transformation; Franchise Ownership; Change Management; Partners and Partnerships; Consumer Behavior; Sales; Internet and the Web; Marketing Strategy; Conflict and Resolution; Conflict Management; Organizational Culture; Distribution Channels; Digital Transformation; Electronics Industry; Retail Industry; Consumer Products Industry; Turkey