Publications

Michael Porter is an economist, researcher, author, advisor, speaker and teacher. Throughout his career at Harvard Business School, he has brought economic theory and strategy concepts to bear on many of the most challenging problems facing corporations, economies... View Details

Keywords: biotechnology; e-commerce industry; health care; information; information technology industry; internet; nonprofit industry; service industry; state government

March–April 2020
Article

Avoid the Pitfalls of A/B Testing

By: Iavor I. Bojinov, Guillaume Sait-Jacques and Martin Tingley

Online experiments measuring whether “A,” usually the current approach, is inferior to “B,” a proposed improvement, have become integral to the product-development cycle, especially at digital enterprises. But often firms make serious mistakes in conducting these... View Details

Keywords: A/B Testing; Experiment Design; Social Networks; Product Development; Performance Improvement; Measurement and Metrics; Social Media

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February 1998
Case

Lyondell Petrochemical Company

By: Jay W. Lorsch and Daniel P. Erikson

In August 1994, Lyondell Petrochemical Co.'s corporate parent and largest single shareholder effectively shed its stock, resulting in the resignation of 5 of its 11 directors. The remaining outside directors immediately acted to overhaul the executive compensation plan... View Details

Keywords: Corporate Governance; Governing and Advisory Boards; Executive Compensation; Design; Business or Company Management; Management Teams; Mining Industry

September 2010 (Revised January 2012)
Case

OPOWER: Increasing Energy Efficiency through Normative Influence (A)

By: Amy J.C. Cuddy, Kyle Todd Doherty and Maarten W. Bos

The case profiles OPOWER, an energy efficiency software company that applies Cialdini's principles of social influence to successfully encourage consumers to reduce their energy usage. OPOWER was co-founded in 2008 by two young Harvard graduates, Dan Yates and Alex... View Details

Keywords: Mathematical Methods; Applications and Software; Attitudes; Entrepreneurship; Energy Conservation; Power and Influence; Growth and Development Strategy; Energy Industry; United States

Educators

15 Aug 2012
Working Paper Summaries

Legislating Stock Prices

Keywords: by Lauren Cohen, Karl Diether & Christopher Malloy; Financial Services

Article

Distance and Political Boundaries: Estimating Border Effects under Inequality Constraints

By: Fernando Borraz, Alberto Cavallo, Roberto Rigobon and Leandro Zipitria

The border effects literature finds that political boundaries have a large impact on relative prices across locations. In this paper we show that the standard empirical specification suffers from selection bias, and propose a new methodology based on binned-quantile... View Details

Keywords: Border Effects; Prices

Jaxon Wu earned his Bachelor of Arts with Honors from Johns Hopkins University where he studied History of Science, Medicine, and Technology and Mathematics. In college, Jaxon worked at both the Johns Hopkins University School of Medicine and the Johns Hopkins... View Details

February 2014
Article

Causes and Frequency of Unplanned Hospital Readmission After Total Hip Arthroplasty.

By: W. W. Schairer, D. C. Sing, T. P. Vail and K J Bozic

BACKGROUND:
Total hip arthroplasty (THA) is a beneficial and cost-effective procedure for patients with osteoarthritis. Recent initiatives to improve hospital quality of care include assessing unplanned hospital readmission rates. Patients presenting for THA have... View Details

May 2023 (Revised November 2023)
Case

Arcos Dorados: Decarbonizing McDonald’s in Latin America

By: George Serafeim, Michael W. Toffel, Jenyfeer Martinez Buitrago and Mariana Cal

This case describes the decarbonization strategy of Arcos Dorados—McDonald’s largest independent franchisee, operating in 20 countries and territories in Latin America and the Caribbean—and how the company measured its greenhouse gas (GHG) emissions, including those... View Details

Keywords: Environmental Accounting; Animal-Based Agribusiness; Plant-Based Agribusiness; Change Management; Forecasting and Prediction; Environmental Sustainability; Food; Growth Management; Supply Chain; Corporate Social Responsibility and Impact; Strategy; Agriculture and Agribusiness Industry; Food and Beverage Industry; Green Technology Industry; Consumer Products Industry; Latin America; North and Central America; South America

Educators

2015
Working Paper

Crowdsourced Digital Goods and Firm Productivity: Evidence from Open Source Software

By: Frank Nagle

As firms increasingly rely on crowdsourced digital goods, understanding their impact on productivity becomes critical. This study measures the firm-level productivity impact of one such good, non-pecuniary (free) open source software (OSS). The results show a... View Details

Keywords: Open Source Distribution; Performance Productivity; Software

SSRN

October 2019
Article

Limited Investment Capital and Credit Spreads

By: Emil N. Siriwardane

Using proprietary credit default swap (CDS) data, I investigate how capital shocks at protection sellers impact pricing in the CDS market. Seller capital shocks—measured as CDS portfolio margin payments—account for 12% of the time-series variation in weekly spread... View Details

Keywords: Credit Risk; Derivatives; Credit Derivatives and Swaps; Capital Markets; Credit; Financial Institutions

27 Apr 2017
News

HBS Prof: Case Studies Need Diversity — Now

2024
Working Paper

Precautionary Debt Capacity

By: Deniz Aydin and Olivia S. Kim

Firms with ample financial slack are unconstrained... or are they? In a field experiment that randomly expands debt capacity on business credit lines, treated small-and-medium enterprises (SMEs) draw down 35 cents on the dollar of expanded debt capacity in... View Details

Keywords: Borrowing and Debt; Credit; Financing and Loans

23 Mar 2023
Research & Ideas

As Climate Fears Mount, More Investors Turn to 'ESG' Funds Despite Few Rules

Investor interest in social responsibility has skyrocketed in the past three years, even as US regulations to hold companies accountable remain in flux and the environmental, social, and governance (ESG) label itself draws backlash. Investors are willing to pay a... View Details

Keywords: by Rachel Layne; Financial Services

2013
Working Paper

Financial vs. Strategic Buyers

By: Marc Martos-Vila, Matthew Rhodes-Kropf and Jarrad Harford

This paper introduces the impact of debt misvaluation on merger and acquisition activity. Debt misvaluation helps explain the shifting dominance of financial acquirers (private equity firms) relative to strategic acquirers (operating companies). The effects of... View Details

Keywords: Misvaluation; Mergers and Acquisitions; Private Equity

27 Mar 2018
First Look

First Look at New Research, March 27, 2018

Abstract—We investigate whether top managers affect the performance of large public sector organizations. As our case study we examine CEOs of English public hospitals, which are large, complex organizations with multi-million turnover. We study the View Details

Keywords: Sean Silverthorne

2017
Working Paper

Salience through Information Technology: The Effect of Balance Availability on the Smoothing of SNAP Benefits

By: Andrew Hillis

Recipients of the Supplemental Nutrition Assistance Program (SNAP) run out of most benefits before halfway through a benefit deposit cycle. I study the introduction of a mobile software application, Fresh EBT, that enables beneficiaries to check their available balance... View Details

Keywords: Mobile Technology; Welfare or Wellbeing; Technology Adoption; Behavior

December 2022 (Revised February 2023)
Case

Akooda: Charging Toward Operational Intelligence

By: Christopher T. Stanton and Mel Martin

The Akooda case describes the challenges confronting founder and CEO Yuval Gonczarowski (MBA ‘17) in 2022 as he attempts to boost sales. Launched in November 2020, Akooda was an AI company that mined 20 different sources of digital data, from tools like Slack, Google... View Details

Keywords: Data Mining; Productivity; Monitoring; Data Analysis; AI and Machine Learning; Knowledge Management; Operations; Problems and Challenges; Employee Relationship Management; Information Technology Industry; Technology Industry; Information Industry; Boston; Israel

Educators