Publications

2021
Working Paper

Pandemic Schooling Mode and Student Test Scores: Evidence from U.S. States

By: Clare Halloran, Rebecca Jack, James C. Okun and Emily Oster

We estimate the impact of district-level schooling mode (in-person versus hybrid or distance learning) on test scores. We combine Spring 2021 state standardized test score data with comprehensive data on schooling in the 2020-21 school year across 12 states. We find... View Details

Keywords: COVID-19 Pandemic; In-person Schooling; Distance Learning; Outcomes Measurement; Health Pandemics; Education; Performance Evaluation

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31 Aug 2010
News

As economy seeks balance, businesses hold key

14 Dec 2016
HBS Seminar

Alexander Frankel, University of Chicago Booth School of Business

08 Dec 2015
News

Treat Employees Like Business Owners

2006
Other Unpublished Work

Does Banks' Corporate Control Benefit Firms? Evidence from US Banks' Control over Firms' Voting Rights

By: Joao A.C. Santos and Kristin Wilson

In this paper we examine the importance of banks' corporate control over their borrowers by investigating the loan pricing effect of banks' voting stakes in borrowers. We exploit the fact that banks may hold shares of firms in a fiduciary capacity to identify a clean... View Details

Keywords: Voting; Corporate Governance; Commercial Banking; Banking Industry; United States

SSRN

May 18, 2012
Article

Randomized Government Safety Inspections Reduce Worker Injuries with No Detectable Job Loss

By: David I Levine, Michael W. Toffel and Matthew S. Johnson

Controversy surrounds occupational health and safety regulators, with some observers claiming that workplace regulations damage firms' competitiveness and destroy jobs and others arguing that they make workplaces safer at little cost to employers and employees. We... View Details

Keywords: Regulation; Occupational Safety; Evaluation; Regression; Matching; Difference In Differences; Safety; Health; Working Conditions; Governing Rules, Regulations, and Reforms; Competitive Advantage; Performance; Manufacturing Industry; California

Article

Optimal Taxation in Theory and Practice

By: N. Gregory Mankiw, Matthew C. Weinzierl and Danny Yagan

We highlight and explain eight lessons from optimal tax theory and compare them to the last few decades of OECD tax policy. As recommended by theory, top marginal income tax rates have declined, marginal income tax schedules have flattened, redistribution has risen... View Details

Keywords: Taxation; Theory; Practice; Policy

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September 1992 (Revised July 1998)
Case

Germany in the 1990s: Managing Reunification

By: George C. Lodge and James W. Ragsdale

In October 1990, eastern Germany was incorporated into the Federal Republic of Germany. The German people rewarded the architect of these changes, Helmut Kohl, with an enhanced majority in national elections. But only two years later it was hard to remember these heady... View Details

Keywords: Economy; Inflation and Deflation; Central Banking; Interest Rates; Political Elections; Situation or Environment; Integration; Europe; Germany; Italy; United Kingdom

August 2018
Case

Digital Transformation at Brazilian Retailer Magazine Luiza

By: Thales S. Teixeira, Leandro A. Guissoni and Tania Modesto Veludo-de-Oliveira

By late 2017, Brazilian retailer Magazine Luiza's CEO was convinced that the company could significantly grow sales and accomplish its aspirations of digital transformation. What was unclear in his mind was whether he should act as a tech company and grow as fast as... View Details

Keywords: Digital; Ecommerce; Retailing; Brazil; Bricks And Mortar; Pricing; Customer Lifetime Value; Growth and Development Strategy; Internet and the Web; Transformation; Decision Choices and Conditions; Retail Industry; Brazil

March 1995 (Revised August 1995)
Background Note

Options and Put-Call Parity

By: Andre F. Perold and Wai Lee

Illustrates the payoff structure of various positions involving put and call options and the use of put-call parity in understanding the relationships among various positions. Examines the cases of insured equity, interest rate caps and floors, callable and extendable... View Details

Keywords: Stock Options

2023
Other Unpublished Work

Unprecedented: Remote Work and the Strange Economy of 2023

By: Randolph B. Cohen

The low unemployment rate which suggests a strong economy and the low productivity and GDP growth that seems more consistent with less robust conditions sit uneasily together. It's a mystery! But it may be that societal changes like remote work can reconcile the... View Details

Keywords: Economy; Economic Growth; Economic Slowdown and Stagnation; Employment; Working Conditions

May 1998 (Revised February 2007)
Background Note

Measuring Mutual Fund Performance

By: Andre F. Perold and Markus Mullarkey

Examines various approaches to measuring mutual fund performance. The approaches include the use of risk exposure and the Sharpe Ratio, as well as the Morningstar star system for rating mutual funds. Applies the approaches to a variety of mutual funds to demonstrate... View Details

Keywords: Investment Funds; Performance

27 Jun 2011
News

A Plan to Tax the Foreign Income of U.S. Companies

23 Jan 2020
News

Are Performance Reviews Sexist? New Research Says Yes

March 2006 (Revised November 2006)
Case

China: To Float or Not To Float? (D)- Bank of America's Strategic Investment in China Construction Bank

By: Laura Alfaro, Rafael M. Di Tella and Ingrid Vogel

With its $3 billion investment in Chinese state bank China Construction Bank, Bank of America--the second U.S. bank behind Citigroup in terms of assets and market capitalization--was one of several foreign banks directly participating in China's banking sector reform.... View Details

Keywords: Currency Exchange Rate; Banks and Banking; Foreign Direct Investment; International Relations; Banking Industry; China; United States

05 Oct 2010
News

The more the murkier

January 2001 (Revised August 2003)
Case

Student Educational Loan Fund, Inc. (Abridged)

By: Peter Tufano

Rick Melnick oversees the Student Educational Loan Fund (SELF), which provides loans to Harvard Business School students. SELF is changing the terms of student loans from variable-rate with semiannual payments to fixed-rate loans with equal monthly payments. Melnick... View Details

Keywords: Risk Management; Financing and Loans; Business Education; Interest Rates; Education Industry; Boston