Publications

April 5, 2023
Article

We Need an Operation Warp Speed for Long COVID

By: Esther K. Choo and Scott Duke Kominers

With millions of people affected and at least $1 trillion of economic value at stake, long COVID is our next national health emergency. View Details

Keywords: COVID; COVID-19; COVID-19 Pandemic; Scientific Research; Policy; Health Policy; Innovation; Science; Public Finance; Public Health; Health Disorders; Health Care and Treatment; Human Capital

Victoria Ivashina is the Lovett-Learned Professor of Finance and Head of the Finance Unit at Harvard Business School. She also serves as a Research Associate at the National Bureau of Economic Research (NBER), a Research Fellow at the Center for Economic Policy... View Details

Keywords: banking; federal government; financial services; investment banking industry; private equity (LBO funds); private equity (other)

May 2020 (Revised July 2020)
Case

COVID-19: The Global Shutdown

By: Laura Alfaro and Sarah Jeong

In the first months of 2020, a pandemic overwhelmed the world. COVID-19, commonly known as the coronavirus, spread from China and created a severe public health emergency across countries. While an immediate fear of the disease’s impact on human life permeated society,... View Details

Keywords: Trade; Microeconomics; Macroeconomics; Financial Crisis; Economy; Economic Systems; Economic Slowdown and Stagnation; Economic Sectors; Health Pandemics

May 2013 (Revised September 2013)
Case

The Kashagan Production Sharing Agreement (PSA)

By: Benjamin C. Esty and Florian Bitsch

When discovered in the 1990s, the Kashagan oil field was the second largest oil field in the world. The project sponsors (equity investors) signed a 40-year production sharing agreement (PSA) with the Kazakh government in 1997, with the expectation the field would... View Details

2021
Working Paper

The Changing Role of Business in Society

By: Michael E. Porter

Business interaction with the U.S. government, historically based on securing industry or company special interests at the expense of the public good, has enabled and furthered government dysfunction. Gridlock within the American political system has precluded the... View Details

Philippe van der Beck is an Assistant Professor in the Finance Unit at Harvard Business School. He teaches the Finance I course in the MBA required curriculum. Philippe’s research interests are in empirical asset pricing, sustainable finance, and structural estimation.... View Details

2012
Working Paper

Average Marginal Income Tax Rates in New Zealand, 1907-2009

By: Debasis Bandyopadhyay, Robert J. Barro, Jeremy Couchman, Norman Gemmell, Gordon Y Liao and Fiona McAlister

Estimates of marginal tax rates (MTRs) faced by individual economic agents, and for various aggregates of taxpayers, are important for economists testing behavioural responses to changes in those tax rates. This paper reports estimates of a number of personal marginal... View Details

Keywords: Average Marginal Income Tax Rates; New Zealand; Taxation; New Zealand

SSRN

02 Jul 2011
News

The Moral Behind All the Numbers

2022
Book

Private Equity

By: Paul A. Gompers and Steven N. Kaplan

This Advanced Introduction provides an illustrative guide to private equity, integrating insights from academic research with examples to derive practical recommendations. Paul Gompers and Steven Kaplan begin by reviewing the history of private equity then exploring... View Details

Keywords: Private Equity; Investment Funds; Value Creation

03 Jun 2021
News

CEOs Are the Problem

Summer 2013
Article

Real Estate Prices During the Roaring Twenties and the Great Depression

By: Tom Nicholas and Anna Scherbina

Using new data on market-based transactions we construct real estate price indexes for Manhattan between 1920 and 1939. During the 1920s prices reached their highest level in the third quarter of 1929 before falling by 67% at the end of 1932 and hovering around that... View Details

Keywords: Property; Market Transactions; Price; Value; Financial Crisis; Investment; Real Estate Industry; New York (state, US)

September 2011
Article

Information Risk and Fair Value: An Examination of Equity Betas

By: Edward J. Riedl and George Serafeim

Using a sample of U.S. financial institutions, we exploit recent mandatory disclosures of financial instruments designated as fair value level 1, 2, and 3 to test whether greater information risk in financial instrument fair values leads to higher cost of capital. We... View Details

Keywords: Forecasting and Prediction; Assets; Cost of Capital; Financial Institutions; Financial Instruments; Corporate Disclosure; Information; Risk and Uncertainty; Value; United States

SSRN

2020
Working Paper

Aggregate and Firm-Level Stock Returns During Pandemics, in Real Time

By: Laura Alfaro, Anusha Chari, Andrew Greenland and Peter K. Schott

We show that unexpected changes in the trajectory of COVID-19 infections predict U.S. stock returns, in real time. Parameter estimates indicate that an unanticipated doubling (halving) of projected infections forecasts next-day decreases (increases) in aggregate U.S.... View Details

Keywords: COVID-19; Stock Returns; Health Pandemics; Stocks; Investment Return; Forecasting and Prediction

Research Summary

Corruption

By: Paul M. Healy

World Bank estimates indicate that as much as $1 trillion is paid in bribes throughout the world in a given year. Corruption has been shown to slow economic development. My research focuses on how corruption affects multinational companies. It discusses differences... View Details

Keywords: Corruption; Internal Governance

November 2003 (Revised June 2004)
Background Note

China's Telecommunications Sector

By: Richard L. Nolan and Stephen P. Bradley

In mid-2003, China was the fastest-growing telecom market. Telecom subscribers are estimated at 472 million. With the size and growth of telecom, China is a hot spot for new telecom and IT technologies. Furthermore, China's sheer market power provides a strong position... View Details

Keywords: Globalized Markets and Industries; Technological Innovation; Policy; Decision Choices and Conditions; Competition; Telecommunications Industry; China

July 2008
Case

eHarmony

By: Mikolaj Jan Piskorski, Hanna Halaburda and Troy Smith

eHarmony's CEO needs to decide how to react to imitations of its business model, encroachment by competing models, and ascendance of free substitutes. The case provides four options to address these threats and asks students to choose one after they analyzed the... View Details

Keywords: Business Model; Decision Choices and Conditions; Growth and Development Strategy; Industry Structures; Competitive Strategy; Competitive Advantage; Service Industry