Publications

07 Jul 2008
Research & Ideas

Innovation Corrupted: How Managers Can Avoid Another Enron

jury." The appeals court is scheduled to report within weeks. Q: What does Enron's collapse mean for the future governance and control of public companies? A: The lessons of Enron relate to... View Details

Keywords: by Martha Lagace; Energy; Utilities

June 2013 (Revised September 2015)
Case

Procter & Gamble

By: Jay W. Lorsch and Kathleen Durante

On July 12, 2012, Bill Ackman's Pershing Square Capital Management announced publicly that it had purchased about $2 billion of Procter and Gamble (P&G) stock. Shares in the company closed up 3.75% the day the disclosure was made public. Ackman told the New York... View Details

Keywords: Ackman; P＆G; Pershing Square Capital Managment; Disruption; Management Succession; Crisis Management; Acquisition; Consumer Products Industry; Financial Services Industry

Purchase

March 2010
Article

Information Content of Insider Trades before and after the Sarbanes-Oxley Act

By: Francois Brochet

This paper examines the information content of Form 4 filings under the more timely disclosure regime introduced by Section 403 of the Sarbanes-Oxley Act of 2002 (SOX). Abnormal returns and trading volumes around filings of insider stock purchases are significantly... View Details

Keywords: Stocks; Corporate Disclosure; Governing Rules, Regulations, and Reforms; Government Legislation; Lawsuits and Litigation; Market Transactions; Volume; Sales

03 Dec 2018
Research & Ideas

How Companies Can Increase Market Rewards for Sustainability Efforts

flavijus For the first time, a link has been drawn between public sentiment about a company’s sustainability practices and how that company is valued in the market. The results are important both for investors searching for under-valued, socially responsible companies,... View Details

Keywords: by Rachel Layne

April 2022
Article

Demand Interactions in Sharing Economies: Evidence from a Natural Experiment Involving Airbnb and Uber/Lyft

By: Shunyuan Zhang, Dokyun Lee, Param Singh and Tridas Mukhopadhyay

We examine whether and how ride-sharing services influence the demand for home-sharing services. Our identification strategy hinges on a natural experiment in which Uber/Lyft exited Austin, Texas, in May 2016 due to local regulation. Using a 12-month longitudinal... View Details

Keywords: Airbnb; Uber; Natural Experiment; Geographic Demand Dispersion; Sharing Economy; Transportation; Demand and Consumers; Geographic Scope

Read Now

12 Nov 2001
Research & Ideas

Facing the New World Order

Published since 1979 by the World Economic Forum, the Global Competitiveness Report ranks seventy-five countries and measures the comparative strengths and weaknesses of their economies. At a press conference announcing View Details

Keywords: by Staff

June 2015 (Revised January 2017)
Case

Greece's Debt: Sustainable?

By: George Serafeim

The case "Greece's Debt: Sustainable?" describes the Greek economic crisis, bailout from the European Union and the International Monetary Fund (IMF), and the debt restructuring that followed. Because of a lack of trust in Greece's ability to repay its debt, two... View Details

Keywords: Debt Crisis; Accounting; Debt Sustainability; Austerity; Solvency Opinions; Borrowing and Debt; Restructuring; Valuation; Accrual Accounting; Fair Value Accounting; Economy; Greece

Purchase

Myra Hart's research focus is high potential entrepreneurship. She has taught MBA and executive programs, co-chaired the entrepreneurship unit, and led several HBS initiatives. As a founding memberView Details

Keywords: consumer products; e-commerce industry; education industry; real estate; retailing

Henry W. McGee

Henry McGee joined the HBS faculty in 2013 after retiring as President of HBO Home Entertainment, the digital and DVD program distribution division of Home Box Office, the pioneering premium television company. A member of the Entrepreneurial Management Unit,... View Details

Keywords: television; motion pictures; media; e-commerce industry; entertainment; broadcasting; distribution; health care; journalism; wholesale; arts; nonprofit industry

May 2014
Case

Health Care Accountability: Examples in Cancer Treatment

By: Regina E. Herzlinger and Natalie Kindred

This case is designed to support a discussion of the importance of outcomes evidence in empowering the public to make better health care decisions, the desired level of transparency and accountability for health care providers, and the issues with current measuring and... View Details

Keywords: Accountability; Health Care; Cancer; Cancer Treatment; Memorial Sloan Kettering Cancer Center; Cancer Treatment Centers Of America; Vantage Oncology; Radiology; Risk Adjustment; Treatment Outcomes; Health Care Outcomes; Prostate Cancer; Transparency; Health Care and Treatment; Risk Management; Outcome or Result; Health Industry; United States

27 Mar 2018
First Look

First Look at New Research, March 27, 2018

capabilities. We conclude that incumbent firms have an advantage in innovating in this setting. Download working paper: https://www.hbs.edu/faculty/Pages/item.aspx?num=54282 The Impact of CEOs in the Public Sector: Evidence from the... View Details

Keywords: Sean Silverthorne

January 2018 (Revised May 2018)
Case

AT&T Managing Technological Change and the Future of Telephone Operators in the 20th Century

By: Daniel P. Gross and William R. Kerr

By the 1930s, AT&T dominated the American phone industry, serving 10 million telephones and employing over 100,000 switchboard operators. But beginning in the mid-1910s, the company began changing from manually operated switchboards to mechanical switching systems that... View Details

Keywords: AT＆T; Bell Telephone; Phone Lines; Phone Operators; Mechanical Switching; Layoffs; Technological Change; Transition; History; Innovation and Invention; Technological Innovation; Information Technology; Disruption; Change Management; Communications Industry; Telecommunications Industry; United States

Purchase

27 Jan 2022
HBS Seminar

Hamsa Bastani, Wharton

02 Apr 2019
First Look

New Research and Ideas, April 2, 2019

to their accounting reports following CLs. Our results indicate that disclosure of regulatory oversight activities can strengthen public enforcement. Publisher's link:... View Details

Keywords: Dina Gerdeman

February 2021
Article

Topic Classification of Electric Vehicle Consumer Experiences with Transformer-Based Deep Learning

By: Sooji Ha, Daniel J Marchetto, Sameer Dharur and Omar Isaac Asensio

The transportation sector is a major contributor to greenhouse gas (GHG) emissions and is a driver of adverse health effects globally. Increasingly, government policies have promoted the adoption of electric vehicles (EVs) as a solution to mitigate GHG emissions.... View Details

Keywords: Natural Language Processing; Analytics and Data Science; Environmental Sustainability; Infrastructure; Transportation; Policy

Read Now

Article

Operational Efficiency and Effective Management in the Catheterization Laboratory

By: Grant W. Reed, Michael L. Tushman and Samir R. Kapadia

Operational efficiency is a core business principle in which organizations strive to deliver high-quality goods or services in a cost-effective manner. This concept has become increasingly relevant to cardiac catheterization laboratories, as insurers move away from... View Details

Keywords: Cath Lab; Catheterization Laboratory; Health Care and Treatment; Performance Efficiency; Management; Performance Productivity; Cost Management; Health Industry