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Publications
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- January 2025
- Case
Creating Value by Splitting Aster: Can One Minus One Equal Two?
By: V.G. Narayanan and Kairavi Dey
Aster DM Healthcare (Aster), founded by Dr. Azad Moopen in 1987, is a prominent healthcare conglomerate with operations spanning hospitals, clinics, retail pharmacies, and diagnostic centers across India and the GCC. After its 2018 listing on India’s National Stock... View Details
- 2024
- Working Paper
Climate Solutions, Transition Risk, and Stock Returns
By: Shirley Lu, Edward J. Riedl, Simon Xu and George Serafeim
Using large language models to measure firms' climate solution products and services, we find that high-climate solution firms exhibit lower stock returns and higher market valuation multiples. Their stock prices respond positively to events signaling increased demand... View Details
- 2024
- Working Paper
Catalysts for Climate Solutions: Corporate Responses to Venture Capital Financing of Climate-tech Startups
By: Shirley Lu, George Serafeim and Simon Xu
We study whether incumbent firms increase their product focus on climate solutions in response to venture capital (VC) financing of climate-tech startups. Using large language models to measure a firm's focus on climate solutions, we find that incumbents in similar... View Details
- 2024
- Working Paper
Categorical Processing in a Complex World
By: Marco Sammon, Thomas Graeber and Christopher Roth
In real-world news environments, quantitative information is rarely presented in isolation; it is characterized through qualitative comparisons with various reference levels. Company earnings, for example, are commonly compared to analyst forecasts, previous earnings,... View Details
- August 2024 (Revised October 2024)
- Case
Discerene Group: Long-Term Public-Markets Investing
By: Luis M. Viceira and Brent Schwarz
This case discusses active investing based on fundamental valuations and price distortions created by market events, and whether contractual terms between investment managers and their investors can help align incentives between long-term investors and active managers.... View Details
- 2024
- Working Paper
Who Clears the Market When Passive Investors Trade?
By: Marco Sammon and John J. Shim
We find that firms are the primary sellers of shares when index funds are net buyers, providing shares at a nearly one-for-one rate. Rather than provide liquidity, most demand-side institutions trade in the same direction as index funds, especially over long horizons.... View Details
- July 2024
- Case
Jacqueline Cook at Vendasta: Debating an IPO
By: Reza Satchu, Tom Quinn and Andrew Kosc
In May 2021, after a surge in demand for digital services that prompted high valuations for startups across the Canadian tech sector, Saskatchewan-based Vendasta entered the final stages of the initial public offering (IPO) process. COO Jacqueline Cook had invested her... View Details
Keywords: Business Growth and Maturation; Business Startups; Interpersonal Communication; Cost vs Benefits; Forecasting and Prediction; Business Cycles; Entrepreneurship; Fairness; Capital Markets; Private Equity; Investment Banking; Stock Options; Financial Markets; Initial Public Offering; Institutional Investing; Price Bubble; Digital Platforms; Digital Transformation; Internet and the Web; Leadership; Growth and Development Strategy; Managerial Roles; Agreements and Arrangements; Going Public; Ownership Stake; Performance Expectations; Work-Life Balance; Strategic Planning; Business and Stakeholder Relations; Rank and Position; Risk and Uncertainty; Opportunities; Happiness; Reputation; Status and Position; Well-being; Information Technology Industry; Retail Industry; Canada
- July 2024
- Article
The Passive-Ownership Share Is Double What You Think It Is
By: Alex Chinco and Marco Sammon
Each time a stock gets added to or dropped from a benchmark index, we ask: “How much money would have to be tracking that index to explain the huge spike in rebalancing volume we observe on reconstitution day?” While index funds held 16% of the US stock market in 2021,... View Details
- May 2024
- Case
Naked Wines: The Profit vs. Growth Decision
By: Benjamin C. Esty and Edward A. Meyer
Nick Devlin faced a difficult strategic decision in October 2022. As the CEO of a UK-based subscription business connecting wine drinkers in the US, UK, and Australia with winemakers from around the world (which one journalist called the “Netflix of Wine”), he had to... View Details
Keywords: Profit Vs. Growth; Platform Business; Economies Of Scale; Subscription Business; Wine; Scaling; Racing; Value Creation; Network Effects; Business Startups; Small Business; Financial Management; Financial Strategy; Growth Management; Business Strategy; Competitive Advantage; Expansion; Profit; E-commerce; Growth and Development Strategy; Agriculture and Agribusiness Industry; Food and Beverage Industry; United States; Australia; United Kingdom
- 2024
- Working Paper
Valuing Stocks With Earnings
By: Sebastian Hillenbrand and Odhrain McCarthy
We show that commonly used aggregate earnings are several times as volatile as stock prices
over the last three decades. Movements in the price-earnings ratio are thus entirely explained by
earnings growth and unrelated to future returns. As an alternative to the... View Details
- March 2024 (Revised July 2024)
- Case
AMC: The Zero Revenue Case
By: C. Fritz Foley and Donal O'Cofaigh
The onset of the Covid-19 pandemic put theatre company AMC’s already perilous financial situation under even further strain. The company’s high levels of debt resulted in a monthly cash-burn which left it facing an imminent Chapter-11 filing in the absence of... View Details
- March 2024 (Revised May 2024)
- Case
Masterpiece for the Masses: The First Art Exchange ARTEX
By: Lauren Cohen, Anastasiya Siroochenko (Siro) and Sophia Pan
Yassir Benjelloun-Touimi, CEO of ARTEX, aspired to marry the world of art and finance. Hoping to promote transparent, fractionalized ownership of renowned artwork, the founder had spent years contemplating the birth of an art stock market. This exchange would allow... View Details
Keywords: Trading; Art Market; Art Fair; Tokenization; Democratization; Exchange Traded Fund; Price Monitoring; Trends And Opportunities; Financial Liquidity; Financial Markets; Arts; Financial Strategy; Initial Public Offering; Investment Return; Technological Innovation; Business Model; Trends; Stocks; Assets; Diversification; Trade; Financial Services Industry; Fine Arts Industry; Paris; France
- 2025
- Working Paper
Who Values Democracy?
By: Max Miller
This paper examines the conventional view that redistribution is central to the democratization process using data from stock markets. Consistent with this view, democratizations have a large, negative impact on asset valuations driven by a rise in redistribution risk.... View Details
- 2023
- Working Paper
Flow-Driven ESG Returns
I show that the recent returns to ESG investing are strongly driven by price impact
from flows towards ESG funds. Using data on institutional trades, I estimate the
market’s ability to accommodate the demand of ESG funds, which is given by the
elasticity of... View Details
- 2023
- Working Paper
The Equity Market Implications of the Retail Investment Boom
By: Philippe van der Beck and Coralie Jaunin
This paper quantifies the impact of Robinhood traders on the US equity market. Within a structural model, we estimate retail and institutional demand curves and derive aggregate pricing implications via market clearing. The inelastic nature of institutional demand... View Details
- 2023
- Working Paper
The Optimal Stock Valuation Ratio
By: Sebastian Hillenbrand and Odhrain McCarthy
Trailing price ratios, such as the price-dividend and the price-earnings ratio, scale prices by trailing cash flow measures. They theoretically contain expected returns, yet, their performance in predicting stock market returns is poor. This is because of an omitted... View Details
- 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
- September 2023 (Revised January 2024)
- Case
Icahn Enterprises: Ponzi Scheme or Sound Investment
By: Aiyesha Dey, Jonas Heese and James Weber
Icahn Enterprises, a publicly traded limited partnership founded and operated by famed activist investor Carl Icahn, had earned above market returns for over a decade. Between 2018 and early 2023, it had a compound annual return of 31%. Icahn invested in undervalued... View Details
- September 2023 (Revised September 2024)
- Case
IBJ, Inc. (A): Seeking Matrimony in Japan
By: Ramon Casadesus-Masanell and Akiko Saito
In March 2020, Shigeru Ishizaka, founder and CEO of IBJ, Inc., Japan's largest marriage matching service provider, faced a critical decision regarding the company’s planned ¥3.5 billion (US$32.8 million) acquisition of competitor ZWEI Co., Ltd. IBJ, founded in 2006,... 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