Publications

Find at Harvard

May 14, 2024
Article

One Way to Help Employees Build Emergency Savings

By: Timothy Flacke and Peter Tufano

Intentional cooperation between two organizations — BlackRock, a major asset management firm, and national non-profit, Commonwealth — created the conditions for the nation’s largest payroll processor, multiple U.S. employers, retirement record keepers, and others to... View Details

Keywords: Saving; Personal Finance; Income; Nonprofit Organizations; Corporate Social Responsibility and Impact; Partners and Partnerships

Intentional cooperation between two organizations — BlackRock, a major asset management firm, and national non-profit, Commonwealth — created the conditions for the nation’s largest payroll processor, multiple U.S. employers, retirement record keepers, and others... View Details

March 2022 (Revised February 2024)
Case

El Salvador: Launching Bitcoin as Legal Tender

By: Laura Alfaro, Carla Larangeira and Ruth Costas

In June 2021, Nayib Bukele, El Salvador’s president, surprised the world with the announcement that the country would adopt bitcoin as legal tender, becoming the first nation to do so. Bitcoin was mostly used for trading and had one of the most volatile track records... View Details

Keywords: Bitcoin; Cryptocurrency; Currency; Financial Strategy; Economic Growth; Governance; Macroeconomics; Assets; Latin America; El Salvador

Educators

September 2023
Article

Customer Churn and Intangible Capital

By: Scott R. Baker, Brian Baugh and Marco Sammon

Intangible capital is a crucial and growing piece of firms’ capital structure, but many of its distinct components are difficult to measure. We develop and make available several new firm-level metrics regarding a key component of intangible capital – firms’ customer... View Details

Keywords: Customer Base; Transaction Data; Customer Churn; Intangible Capital; Capital Structure; Measurement and Metrics; Customers

SSRN

2017
Working Paper

Rainy Day Stocks

By: Niels Gormsen and Robin Greenwood

We study the good- and bad-times performance of equity portfolios formed on characteristics. Many characteristics associated with good performance during bad times – value, profitability, small size, safety, and total volatility – also perform well during good times.... View Details

Keywords: Performance; Stocks; Situation or Environment

April 2008 (Revised December 2008)
Case

Leveraged Loans 2007

By: Andre F. Perold and Erik Stafford

The leveraged loan market was in a crisis during the summer of 2007, following many years of low realized volatility (less than 4% per annum), an index of leveraged loans had fallen over 5% in the month of July. A sudden drop in capital market prices for an asset class... View Details

Keywords: History; Financial Liquidity; Investment; Financial Crisis; Market Transactions; Disruption; Decision Choices and Conditions; Competitive Strategy; Capital Markets; Crisis Management; Commercial Banking; Banking Industry; Financial Services Industry

Educators

22 Jul 2014
Working Paper Summaries

Banks as Patient Fixed-Income Investors

Keywords: by Samuel G. Hanson, Andrei Shleifer, Jeremy C. Stein & Robert W. Vishny; Banking

13 Jan 2010
Working Paper Summaries

Private Equity and Industry Performance

Keywords: by Shai Bernstein, Josh Lerner, Morten Sørensen & Per Strömberg

23 Aug 2013
Working Paper Summaries

Waves in Ship Prices and Investment

Keywords: by Robin Greenwood & Samuel Hanson

October 2024
Teaching Note

El Salvador: Launching Bitcoin as Legal Tender

By: Laura Alfaro

Teaching Note for HBS Case No. 322-055. In June 2021, Nayib Bukele, El Salvador’s president, surprised the world with the announcement that the country would adopt bitcoin as legal tender, becoming the first nation to do so. Bitcoin was mostly used for trading and had... View Details

Keywords: Bitcoin; Cryptocurrency; Currency; Financial Strategy; Economic Growth; Governance; Macroeconomics; Assets; Government Administration; Latin America; El Salvador

July 2020
Case

Mortgage Backed Securities and the Covid-19 Pandemic

By: Emil N. Siriwardane, Luis M. Viceira and Dean Xu

In April 2020, global financial markets were still reeling as the COVID-19 pandemic spread rapidly across the world. Global equity markets had initially fallen by 30% in response to the pandemic, and high-yield credit markets had dropped by nearly 20%. In contrast,... View Details

Keywords: COVID-19; Mortgage-backed Securities; Health Pandemics; Financial Markets; Assets; Resource Allocation; Financial Instruments; Decision Making

Educators

29 Aug 2013
Working Paper Summaries

X-CAPM: An Extrapolative Capital Asset Pricing Model

Keywords: by Nicholas Barberis, Robin Greenwood, Lawrence Jin & Andrei Shleifer

2024
Working Paper

How Do Global Portfolio Investors Hedge Currency Risk?

By: Robin Greenwood and Alex Cheema-Fox

We use monthly portfolio data from one of the world’s largest custodian banks, with over $40 trillion assets under custody, to study how global portfolio investors hedge foreign exchange risk in their equity and fixed income portfolios over the past 25 years. The data... View Details

Keywords: Investment Portfolio; Investment Funds; Currency; Risk and Uncertainty

Research Summary

Time Varying Expected Returns, Stochastic Dividend Yields, and Default Probabilities: Linking the Credit Risk and Equity Literature (with George Chacko and Jens Hilscher)

In standard structural bond pricing models, the firm defaults once the market value of assets has fallen below a threshold. Expected returns, or at least dividend yields, are assumed to be constant, which implies that any asset value movement is permanent and has the... View Details

Second Quarter 2008
Article

How Does Investor Sentiment Affect the Cross-Section of Returns

By: Malcolm Baker, Johnathan Wang and Jeffrey Wurgler

Broad waves of investor sentiment should have larger impacts on securities that are more difficult to value and to arbitrage. Consistent with this intuition, we find that when an index of investor sentiment takes low values, small, young, high volatility,... View Details

Keywords: Volatility; Behavioral Finance; Stocks; Investment; Investment Return; Attitudes