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- June 2025
- Article
Collusion in Brokered Markets
By: John William Hatfield, Scott Duke Kominers and Richard Lowery
High commissions in the U.S. residential real estate agency market present a puzzle for economic theory because brokerage is not a concentrated industry. We model brokered markets as a game in which agents post prices for customers and then choose which other agents to... View Details
Keywords: Real Estate Agents; Real Estate; Realtors; Broker Networks; Brokerage; Brokerage Commissions; ＂Brokerage Industry; Brokered Markets; Brokering; Brokers; Industrial Organization; Repeated Game Framework; ＂Repeated Games＂; Collusion; Antitrust; Microeconomics; Market Design; Theory; Game Theory; Real Estate Industry
- February 2024 (Revised February 2024)
- Case
CLSA: Integrating ESG in Stock Valuation
By: Shirley Lu, Aaron Yoon and Billy Chan
In 2023, a senior financial analyst at the Hong Kong-based stock brokerage firm CLSA was surprised to see that, based on his calculations, the financial impact from climate risks on a major Indian cement manufacturing company’s projected earnings could be massive.... View Details
- December 2023
- Article
Brokerage Relationships and Analyst Forecasts: Evidence from the Protocol for Broker Recruiting
By: Braiden Coleman, Michael Drake, Joseph Pacelli and Brady Twedt
In this study, we offer novel evidence on how the nature of brokerage-client relationships can influence the quality of equity research. We exploit a unique setting provided by the Protocol for Broker Recruiting to examine whether relaxed broker non-compete agreement... View Details
Keywords: Brokers; Analysts; Forecasts; Bias; Protocol; Investment; Research; Forecasting and Prediction
- November 2023
- Article
Brokerage House Initial Public Offerings and Analyst Forecast Quality
By: Mark Bradshaw, Michael Drake, Joseph Pacelli and Brady Twedt
We examine how brokerage firm initial public offerings (IPOs) influence the research quality of sell-side analysts employed by the brokerage. Our main results focus on earnings forecast bias and absolute forecast errors as proxies for research quality. Using a... View Details
- April 2023
- Case
Ryan Serhant: Time Management for Repeatable Success (A)
By: Ashley Whillans and Hawken Lord
From an open-concept 90’s-style stone and wood cabin in Dublin, New Hampshire, Ryan Serhant reflected on his career as a real estate broker. As Ryan stared into the fireplace that featured prominently in the center of the house, he wondered whether the period of... View Details
- December 2022
- Article
Conflicting Interests and the Effect of Fiduciary Duty: Evidence from Variable Annuities
By: Mark Egan, Shan Ge and Johnny Tang
We examine the variable annuity market to study conflicts of interest and the effect of fiduciary duty in brokerage markets. Insurers typically pay brokers higher commissions for selling more expensive annuities. Our results indicate that sales are four times as... View Details
- Winter 2022
- Article
Distributing a Billion Vaccines: COVAX Successes, Challenges, and Opportunities
By: Eric Budish, Hannah Kettler, Scott Duke Kominers, Erik Osland, Canice Prendergast and Andrew A. Torkelson
By January 2022, the COVAX international vaccine collaboration had allocated over a billion vaccines to over 140 countries. We describe and review the allocation process chosen, which reflected both an objective of equitably distributing vaccines across the world and... View Details
- 2022
- Working Paper
Retail Investors’ Contrarian Behavior Around News, Attention, and the Momentum Effect
By: Cheng (Patrick) Luo, Enrichetta Ravina, Marco Sammon and Luis M. Viceira
Using a large panel of U.S. brokerage accounts trades and positions, we show that a large fraction of retail investors trade as contrarians after large earnings surprises, especially for loser stocks, and that such contrarian trading contributes to post earnings... View Details
- January 2022
- Article
Replicating Private Equity with Value Investing, Homemade Leverage, and Hold-to-Maturity Accounting
By: Erik Stafford
The contributions of asset selection and incremental leverage to buyout investment performance are more important than typically assumed or estimated to be. Buyout funds select small firms with distinct value characteristics. Public equities with these characteristics... View Details
- September 2021 (Revised December 2021)
- Case
Telepass: From Tolling to Mobility Platform
By: Chiara Farronato, Stefano Denicolai and Sarah Mehta
Telepass, until very recently the sole processor of electronic toll payments on Italy’s highways, has ambitions beyond tolling. Since the mid-2010s, the company has been expanding into adjacent services. In 2017, Telepass launched TelepassPay—a mobile payment... View Details
Keywords: Mobile Payment; App; Mobility Services; Analysis; Change; Change Management; Transformation; Transition; Innovation and Invention; Strategy; Information Technology; Mobile and Wireless Technology; Transportation; Transportation Networks; Value; Value Creation; Consumer Behavior; Technology Industry; Transportation Industry; Insurance Industry; Europe; Italy; Milan
- September 2021 (Revised December 2021)
- Case
Telepass: From Tolling to Mobility Platform (Abridged)
By: Chiara Farronato, Stefano Denicolai and Sarah Mehta
Telepass, until very recently the sole processor of electronic toll payments on Italy’s highways, has ambitions beyond tolling. Since the mid-2010s, the company has been expanding into adjacent services. In 2017, Telepass launched TelepassPay—a mobile payment... View Details
Keywords: Mobile Payment; App; Mobility Services; Analysis; Change; Change Management; Transformation; Transition; Innovation and Invention; Strategy; Information Technology; Mobile and Wireless Technology; Transportation; Transportation Networks; Value; Value Creation; Technology Industry; Transportation Industry; Insurance Industry; Europe; Italy; Milan
- 2021
- Article
An Empirical Examination of Sell-Side Brokerage Analysts' Published Research, Concierge Services, and High-Touch Services
By: David A. Maber, Boris Groysberg and Paul M. Healy
This paper uses a proprietary panel dataset to categorize and quantify the activities that sell-side brokerage analysts use to build and sustain their network of buy-side client relations. We then examine the marginal impact of these activities on key analyst outcome... View Details
- August 2021 (Revised November 2021)
- Case
The NCB Capital Turnaround: Waking the Sleeping Giant
By: Sandra J. Sucher, Gamze Yucaoglu, Shalene Gupta and Fares Khrais
The case opens in 2019, five years after, Sarah Al Suhaimi, CEO of NCB Capital (NCBC), the investment arm of Saudi’s largest bank, NCB, took the helm. Having successfully turned the business to make it the market leader, she was contemplating her next steps as... View Details
- July 2021 (Revised October 2023)
- Case
K.C. Li: The Tungsten King
By: Geoffrey Jones and Casey Verkamp
This case examines the business career of Kuo-Ching Li, who was born in China in 1892, and built a successful minerals trading business called Wah Chang in the United States during the interwar years. He acquired a prominent role in tungsten, the strongest natural... View Details
- August 2019 (Revised April 2021)
- Case
Zillow Offers: Winning Online Real Estate 2.0
By: Luis Viceira, Marco Di Maggio and Allison Ciechanover
Founded in 2005, Zillow had become the leading online real estate and home-related marketplace. The brand was recognized as a trusted resource for players in the real estate market, providing information and transparency on home prices. Revenue, which was historically... View Details
- 2024
- Other Unpublished Work
Brokerage and Cognition: Driving Integration at the Limits of Formal Structure
By: Ranjay Gulati and Luciana Silvestri
- 2019
- Article
Brokerage and Brokering: An Integrative Review and Organizing Framework for Third Party Influence
By: Nir Halevy, Eliran Halali and Julian Zlatev
Brokerage and brokering are pervasive and consequential organizational phenomena. Prevailing models underscore social structure and focus on the consequences that come from brokerage—occupying a bridging position between disconnected others in a network. By contrast,... View Details
- 2025
- Working Paper
Government-Brokerage Analysts and Market Stabilization: Evidence from China
By: Sheng Cao, Xianjie He, Charles C.Y. Wang and Huifang Yin
We show analysts at government-controlled brokerage firms serve as a market stabilization tool
in China. Using earnings forecasts from 2005–2019, we find government-brokerage analysts
issue relatively more optimistic—yet less accurate and timely—forecasts during... View Details
- July 2015
- Article
The Impact of Corporate Social Responsibility on Investment Recommendations: Analysts' Perceptions and Shifting Institutional Logics
By: Ioannis Ioannou and George Serafeim
We explore the impact of corporate social responsibility (CSR) ratings on sell-side analysts' assessments of firms' future financial performance. We suggest that when analysts perceive CSR as an agency cost, due to the prevalence of an agency logic, they produce... View Details