Publications
Publications
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- All HBS Web
(4,831)
- Faculty Publications (1,367)
- 2022
- Working Paper
Heterogeneous Investors and Stock Market Fluctuations
By: Odhrain McCarthy and Sebastian Hillenbrand
We introduce a heterogeneous agent model which features extrapolative beliefs and time-varying risk aversion. The model leads to an empirical framework which we estimate with stock prices, survey data and risk aversion measures. We find that extrapolative beliefs and... View Details
- 2022
- Working Paper
Many Markets Make Good Neighbors: Multimarket Contact and Deposit Banking
By: John William Hatfield and Jonathan Wallen
We investigate the relationship between the interest rates offered to consumers in a deposit banking market and the contact that banks in that market have with each other in other markets.
We show, in a simple theoretical model, that such overlapping relationships... View Details
- 2022
- Working Paper
The Fed and the Secular Decline in Interest Rates
In this paper I document a striking fact: a narrow window around Fed meetings fully captures the secular decline in U.S. Treasury yields since 1980. By contrast, yield movements outside this window are transitory and wash out over time. This is surprising because the... View Details
- 2021
- Working Paper
Limits to Bank Deposit Market Power
By: Juliane Begenau and Erik Stafford
Claims about the market power of bank deposits in the banking literature are numerous and far reaching. Recently, a causal narrative has emerged in the banking literature: market power in bank deposits, measured as imperfect pass-through of short-term market rates on... View Details
- 2021
- Working Paper
Stock Investors' Returns Are Exaggerated
By: Jesse M. Fried, Paul Ma and Charles C.Y. Wang
The stock market generates less wealth than it appears. We show that total shareholder return (TSR), the standard measure of stock investor performance, substantially exaggerates returns earned by these investors in aggregate, and thus by most investors. The main... View Details
- Article
Core Earnings: New Data and Evidence
By: Ethan Rouen, Eric C. So and Charles C.Y. Wang
Using a novel dataset, we show that components of firms' GAAP earnings stemming from ancillary business activities or transitory shocks are significant in frequency and magnitude. These components have grown over time and are dispersed across various sections of the... View Details
- 2024
- Working Paper
What Drives Variation in Investor Portfolios? Estimating the Roles of Beliefs and Risk Preferences
By: Mark Egan, Alexander MacKay and Hanbin Yang
We present an empirical model of portfolio choice that allows for the nonparametric estimation of investors' (subjective) expectations and risk preferences. Utilizing a comprehensive dataset of 401(k) plans from 2009 through 2019, we explore heterogeneity in asset... View Details
- November 2021 (Revised January 2024)
- Case
The Global Great Depression, 1929-1939
By: Alberto Cavallo, Sophus A. Reinert and Federica Gabrieli
The Great Depression was, by far, the worst economic contraction of the twentieth century, and some of the most important ideas about both fiscal and monetary policy in the second half of the century were developed in response to it. The economic collapse, which... View Details
- November 2021
- Supplement
Ant Group (B)
By: Krishna G. Palepu, Feng Zhu and Susie L. Ma
- October 2021 (Revised February 2023)
- Case
Ant Group (A)
By: Krishna G. Palepu, Feng Zhu, Susie L. Ma and Kerry Herman
In 2004, Chinese e-commerce company Alibaba created Alipay, an app to facilitate payments on its e-commerce sites. As Alibaba grew, so did Alipay, until Alipay spawned its own ecosystem of financial technology products and services under the name of Ant Group. By 2020,... View Details
- 2021
- Working Paper
The Business of K-12 Education in China
By: Geoffrey Jones and Yuhai Wu
This working paper examines the evolution of K-12 education in China, especially between 1985 and the present day, drawing extensive interviews with participants in the educational sector. China has been hugely successful in reaching almost 100 percent literacy,... View Details
- 2021
- Chapter
Building Small Business Utopia: How Artificial Intelligence and Big Data Can Increase Small Business Success
By: Karen G. Mills and Annie Dang
Small business lending has remained unchanged for decades, laden with frictions and barriers that prevent many small businesses from accessing the capital they need to succeed. Financial technology, or “fintech,” promises to change this trajectory. In 2010, new fintech... View Details
- Article
Large Banks and Small Firm Lending
By: Vitaly Bord, Victoria Ivashina and Ryan D. Taliaferro
We examine the long-lasting effects of the 2007 real estate price collapse on small business credit supply. Banks affected by the decline in real estate prices systematically contracted their credit to small firms. At the same time, regional and local banks, many of... View Details
- September 2021
- Case
Ensuring Your Family’s Future: The Alagil Family Office
By: Lauren Cohen, Esel Çekin and Fares Khrais
Muhammad Alagil was a second-generation leader in the well-known Alagil Family Group of businesses in Saudi Arabia and co-founder and chairman of its family office, Jarir Company for Commercial Investments (Jarir Investments). The case opens in 2021 with Alagil... View Details
- September 2021
- Case
Worldreader: Helping Readers Build a Better World
By: Marco Bertini, Elie Ofek and Julia Kelley
Founded in 2010, Worldreader was an international nonprofit organization that promoted reading to children around the world. For many years, Worldreader distributed e-readers to under-resourced communities and funded its operations primarily through philanthropic... View Details
Keywords: Subscription Model; Price; Financial Strategy; Education; Early Childhood Education; Learning; Geography; Geographic Scope; Global Range; Goals and Objectives; Marketing; Marketing Strategy; Markets; Organizations; Mission and Purpose; Social Enterprise; Non-Governmental Organizations; Nonprofit Organizations; Society; Social Issues; Strategy; Commercialization; Expansion; Segmentation; Education Industry; Africa; Asia; Latin America; Europe; North and Central America; South America
- Article
Business Investment in Education in Emerging Markets Since the 1960s
By: Valeria Giacomin, Geoffrey Jones and Erica Salvaj
This article examines non-profit investments by business in education in emerging markets between the 1960s and the present day. Using a sample of 110 interviews with business leaders from an oral history database, the study shows that more than three-quarters of such... 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
- August 2021
- Supplement
Aligning Mission and Margin at Southern Bancorp
By: Brian Trelstad
Video Supplement for HBS Case No. 321-099. In October 2020, after spending almost a decade to turnaround Southern Bancorp, an Arkansan bank founded with the mission to provide financial services to rural, underserved communities, CEO Darrin Williams is wondering how... View Details
- August 2021
- Case
Yummy: Delivering Value to Venezuela
By: Ayelet Israeli, Jenyfeer Martinez Buitrago and Carla Larangeira
By June 2021, Yummy had become Venezuela’s first and largest food delivery app and last-mile logistics company. In Caracas, the nation’s capital, Yummy held a 55% market share, while operations in other cities had already started to take place, including in three of... View Details
- 2025
- Working Paper
How Do Households Suppress the Price of Tail Risk?
By: Laurent Calvet, Claire Célérier, Gordon Liao and Boris Vallée
This paper investigates the effects of the issuance of retail products with non-linear payoffs on option prices. For a given underlying asset, when the outstanding volume of products embedding a short-put position increases, implied volatility at the corresponding... View Details