Publications
Publications
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(7,652)
- Faculty Publications (2,801)
- 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 (Revised March 2024)
- Case
KOKO Networks: Bridging Energy Transition and Affordability with Carbon Financing
By: George Serafeim, Siko Sikochi and Namrata Arora
The problem was massive: two million hectares of African forests were lost annually to charcoal production for cooking, an area equivalent to 13 times Greater London, resulting in one billion tons of carbon emissions yearly. At the same time, an estimated 700,000... View Details
Keywords: Clean Tech; Digital; Carbon Credits; Carbon Offsetting; Africa; Emerging Markets; Energy; Climate Change; Entrepreneurship; Energy Sources; Environmental Sustainability; Health; Market Design; Business Startups; Transition; Environmental Regulation; Policy; Energy Industry; Consumer Products Industry; Africa; Kenya; Rwanda
- 2022
- Working Paper
Why Do Index Funds Have Market Power? Quantifying Frictions in the Index Fund Market
By: Zach Y. Brown, Mark Egan, Jihye Jeon, Chuqing Jin and Alex A. Wu
Index funds are one of the most common ways investors access financial markets and are perceived to be a transparent and low-cost alternative to active investment management. Despite these purported virtues of index fund investing and the introduction of new products... View Details
- October 2023
- Case
Leading Transformation at IHCL
By: Krishna G. Palepu, V.G. Narayanan and Malini Sen
In November 2017, Puneet Chhatwal, took charge as MD and CEO of IHCL, popularly referred to as the Taj Hotels. Despite being India’s largest hospitality company by market capitalization and respected for its values and service, IHCL had made losses for the last seven... View Details
- October 2023 (Revised March 2024)
- Case
GameStop: Social Media Finds a Cheat Code (A)
By: Joseph Pacelli and Sarah Mehta
This case covers the events leading up to the 2021 GameStop short squeeze. Using GameStop as an illustrative example, the case explores the rise in retail trading, increased financial information sharing on social media, and the gamification of investing enabled by... View Details
- October 2023
- Case
JPMorgan Chase in Paris
By: Joseph L. Bower, Dante Roscini, Elena Corsi and Michael Norris
In 2019, Daniel Pinto, President and COO of JPMorgan Chase, has to make a recommendation to the bank’s Chairman and CEO, Jamie Dimon, about where to physically locate the bank’s European trading operations after Brexit takes effect in 2020. The decision-making process... View Details
- October 2023
- Case
Shredder Setups or Straightlining into Risk?: Investing in What You Love
By: Lauren Cohen and Grace Headinger
Bob Hall, President of Green Gables Partners, evaluated whether to angel invest into an up-and-coming ski brand. As the son-in-law of the founder of Vera Bradley and having retired from a lengthy career on Wall Street, Hall was well-versed in both direct investing and... View Details
Keywords: Family Office; Angel Investors; Direct Investment; Family Business; Business Growth and Maturation; Small Business; Financial Strategy; Personal Finance; Investment Portfolio; Private Equity; Decision Choices and Conditions; Risk and Uncertainty; Consumer Products Industry; Montana; United States
- October 2023 (Revised November 2023)
- Case
Sprout Solutions
By: Jeffrey J. Bussgang, Bonnie Yining Cao and Dawn H. Lau
Husband-and-wife co-founders Patrick and Alexandria Gentry had built Sprout Solutions to be one of the biggest Software-as-a-Service human resources management platforms in the Philippines, guided by the mission to "impact the life of every Filipino by improving... View Details
- October 2023 (Revised November 2023)
- Case
Recycle & Re-Match: The Future of Soccer Turfs
By: George Serafeim, Lena Duchene and Carlota Moniz
By August 2023, Re-Match, an artificial turf waste-to-value company, had operations in Denmark and the Netherlands and had recycled over 160,000 tons of waste and plastic fiber. With recent capital injection from the VC firm Verdane and a dual revenue business model,... View Details
Keywords: Carbon Emissions; Carbon Abatement; Sustainability; Recycling; Waste Management; Technology; Entrepreneurial Management; Business Growth and Maturation; Business Model; Decisions; Energy Conservation; Investment Return; Profit; Technological Innovation; Patents; Growth and Development Strategy; Market Entry and Exit; Digital Platforms; Wastes and Waste Processing; Business Strategy; Competition; Expansion; Technology Adoption; Sports; Environmental Sustainability; Entrepreneurship; Green Technology Industry; Service Industry; Manufacturing Industry; Rubber Industry; Sports Industry; Denmark; Netherlands; France; United States; Pennsylvania; Europe
- October 2023 (Revised June 2024)
- Case
Revvity: A Symbol of Change
By: Satish Tadikonda and William Marks
After selling the PerkinElmer name and several ancillary business units, Prahlad Singh (CEO) and his team at the newly christened Revvity faced a challenge on how best to capitalize on the opportunities ahead for the business and emerge as winners within the Life... View Details
- October 2023 (Revised May 2024)
- Case
JSW Steel: Balancing Growth While Decarbonizing
By: Vikram S Gandhi and Radhika Kak
Sajjan Jindal, Chairman & Managing Director of JSW Steel, India's largest steel producer by market capitalization, was facing a dilemma. Steel demand in India was expected to grow exponentially over the next decade. However, given its traditional reliance on carbon,... View Details
- 2023
- Working Paper
No Revenge for Nerds? Evaluating the Careers of Ivy League Athletes
By: Natee Amornsiripanitch, Paul A. Gompers, George Hu, Will Levinson and Vladimir Mukharlyamov
This paper compares the careers of Ivy League athletes to those of their non-athlete classmates. Combining team-level information on all Ivy League athletes from 1970 to 2021 with resume data for all Ivy League graduates, we examine both post-graduate education and... 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
AB InBev: Brewing Up Forecasts during COVID-19
By: Mark Egan, C. Fritz Foley, Esel Cekin and Emilie Billaud
In July 2021, the CEO of AB InBev's European operations and his team strategized to position the company for success post-pandemic. As the world's largest beer company, boasting over 500 brands, revenue of $46 billion, and a workforce of 160,000 in 2020, AB InBev... View Details
Keywords: Beer; Forecasting; COVID-19; Decision; Forecasting and Prediction; Analytics and Data Science; Crisis Management; Decisions; Financing and Loans; Investment Return; Resource Allocation; Distribution; Production; Business Processes; Strategic Planning; Health Pandemics; Digital Transformation; Markets; Food and Beverage Industry; Belgium; Europe; Latin America; North and Central America
- September 2023
- Case
The Rise and Fall of FTX
In November 2022, Sam Bankman-Fried's multi-billion-dollar crypto exchange, FTX, collapsed, wiping out investors and throwing the crypto industry into disarray. As FTX's founder and CEO, Bankman-Fried developed a reputation for his unerring business sense and... 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
- Case
Healthy.io: The Negotiation for the Medical Selfie
By: Amit Goldenberg and Kumba Sennaar
Healthy.io, an Israeli digital health company, prepares to enter the U.S. market with its chronic kidney disease test. A product safety approval is delayed, putting the company’s cash runway at risk. How should the CEO negotiate his offer to insurance companies ahead... View Details
- September 2023
- Supplement
Super Quantum: Using Artificial Intelligence to Transform Asset Management (B)
By: Feng Zhu and Kerry Herman
Dr. Zhang, CEO of Super Quantum, an AI-driven hedge fund, is considering an investor’s request to withdraw their funds as the markets experience volatility. Should he pull the investor’s funds? View Details
- September 2023
- Case
Super Quantum: Using Artificial Intelligence to Transform Asset Management (A)
By: Feng Zhu and Kerry Herman
Dr. Zhang, CEO of Super Quantum, an AI-driven hedge fund, is considering an investor’s request to withdraw their funds as the markets experience volatility. Should he pull the investor’s funds? View Details