Publications
Publications
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- All HBS Web
(120,206)
- Faculty Publications (350)
- September 2020 (Revised September 2021)
- Case
Student Success at Georgia State University (A)
By: Michael W. Toffel, Robin Mendelson and Julia Kelley
Georgia State University had developed a reputation for driving student success by nearly doubling its graduation rate for students of all racial, ethnic, and socioeconomic backgrounds. It did so while growing its student body and the proportion of Black/African... View Details
Keywords: Education; Higher Education; Learning; Curriculum and Courses; Demographics; Diversity; Ethnicity; Income; Race; Leadership; Goals and Objectives; Measurement and Metrics; Operations; Organizations; Mission and Purpose; Organizational Culture; Outcome or Result; Performance; Performance Effectiveness; Performance Evaluation; Service Operations; Performance Improvement; Planning; Strategic Planning; Social Enterprise; Nonprofit Organizations; Social Issues; Wealth and Poverty; Equality and Inequality; Information Technology; Digital Platforms; Education Industry; Atlanta
- September 2020 (Revised September 2021)
- Supplement
Student Success at Georgia State University (B)
By: Michael W. Toffel, Robin Mendelson and Julia Kelley
This is a supplement to the Student Success at Georgia State University (A) case. The (B) case includes the results of a randomized control trial that Georgia State conducted to test education technology start-up AdmitHub’s chatbot solution as a strategy for improving... View Details
Keywords: Education; Higher Education; Learning; Curriculum and Courses; Demographics; Diversity; Ethnicity; Income; Race; Values and Beliefs; Leadership; Goals and Objectives; Measurement and Metrics; Operations; Organizations; Mission and Purpose; Organizational Culture; Outcome or Result; Performance; Performance Effectiveness; Performance Evaluation; Performance Improvement; Planning; Strategic Planning; Social Enterprise; Nonprofit Organizations; Social Issues; Wealth and Poverty; Equality and Inequality; Information Technology; Digital Platforms; Education Industry; Atlanta
- August 2020 (Revised September 2020)
- Technical Note
Assessing Prediction Accuracy of Machine Learning Models
The note introduces a variety of methods to assess the accuracy of machine learning prediction models. The note begins by briefly introducing machine learning, overfitting, training versus test datasets, and cross validation. The following accuracy metrics and tools... View Details
- August 2020
- Technical Note
Comparing Two Groups: Sampling and t-Testing
This note describes sampling and t-tests, two fundamental statistical concepts. View Details
- August 2020
- Article
Improving Working Conditions in Global Supply Chains: The Role of Institutional Environments and Monitoring Program Design
By: Jodi L. Short, Michael W. Toffel and Andrea R. Hugill
Activism seeking to improve labor conditions in global supply chains has led many transnational corporations to adopt codes of conduct and monitor suppliers for compliance. Drawing on thousands of audits conducted by a major social auditor, we identify structural... View Details
- June 18, 2020
- Article
What CEOs Still Haven't Said about Race and Policing
By: Aaron K. Chatterji and Michael W. Toffel
While many CEOs have spoken out to share their thoughts on race and police misconduct in America, they have yet to advocate for policy solutions for police reform, focusing instead on their own corporate and personal values. But lasting change must also involve ... View Details
- June 2020
- Teaching Note
Fossil Fuel Divestment
By: Michael W. Toffel and Sarah Gulick
Teaching note to accompany HBS case 620-093, Fossil Fuel Divestment, by Michael W. Toffel and Sarah Gulick. View Details
- June 2020
- Article
How Scheduling Can Bias Quality Assessment: Evidence from Food Safety Inspections
By: Maria Ibanez and Michael W. Toffel
Accuracy and consistency are critical for inspections to be an effective, fair, and useful tool for assessing risks, quality, and suppliers—and for making decisions based on those assessments. We examine how inspector schedules could introduce bias that erodes... View Details
- April 2020
- Teaching Note
Indigo Agriculture: Harnessing Nature
By: Michael W. Toffel and James Barnett
Teaching Note for HBS No. 620-024. Indigo Agriculture used a digital-enabled research and development (R&D) process to launch its initial product, microbial coatings for agricultural seeds, which increase crop yields while reducing the need for fertilizers. In doing... View Details
- February 2020
- Supplement
Indigo Agriculture: Harnessing Nature
By: Michael W. Toffel and James Barnett
Indigo Agriculture used a digital-enabled research and development (R&D) process to launch its initial product, microbial coatings for agricultural seeds, which increase crop yields while reducing the need for fertilizers. In doing so, the company developed direct... View Details
Keywords: Operations; Supply Chain; Social Enterprise; Product Development; Distribution Channels; Business Strategy; Digital Platforms; Environmental Sustainability; Science-Based Business; Climate Change; Agriculture and Agribusiness Industry; Green Technology Industry; United States; Massachusetts
- January 2020 (Revised April 2020)
- Case
Fossil Fuel Divestment
By: Michael W. Toffel and Sarah Gulick
The president of Harvard University is facing growing pressure from students, alumni, and other climate change activists that are urging the university to divest its multi-billion dollar endowment from fossil fuel companies. The case summarizes the arguments for and... View Details
- November 2019 (Revised June 2020)
- Case
Indigo Agriculture: Harnessing Nature
By: Marco Iansiti, Michael W. Toffel and James Barnett
Indigo Agriculture used a digital-enabled research and development (R&D) process to launch its initial product, microbial coatings for agricultural seeds, which increase crop yields while reducing the need for fertilizers. In doing so, the company developed direct... View Details
Keywords: Carbon Sequestration; Operations; Supply Chain; Social Enterprise; Product Development; Distribution Channels; Business Strategy; Digital Platforms; Environmental Sustainability; Science-Based Business; Climate Change; Agriculture and Agribusiness Industry; Green Technology Industry; United States; Massachusetts
- 2021
- Working Paper
Shareholder Activism and Firms' Voluntary Disclosure of Climate Change Risks
By: Caroline Flammer, Michael W. Toffel and Kala Viswanathan
This paper examines whether—in the absence of mandated disclosure requirements—shareholder activism can elicit greater disclosure of firms’ exposure to climate change risks. We find that environmental shareholder activism increases the voluntary disclosure of climate... View Details
Keywords: Shareholder Activism; Climate Risk; Corporate Accountability; Climate Change; Corporate Disclosure; Corporate Governance; Corporate Social Responsibility and Impact; Business and Shareholder Relations; Risk and Uncertainty; Natural Environment; Environmental Sustainability; Financial Services Industry; United States
- 2020
- Working Paper
Improving Regulatory Effectiveness Through Better Targeting: Evidence from OSHA
By: Matthew S. Johnson, David I. Levine and Michael W. Toffel
We study how a regulator can best target inspections. Our case study is a US Occupational Safety and Health Administration (OSHA) program that randomly allocated some inspections. On average, each inspection averted 2.4 serious injuries (9%) over the next five years.... View Details
- 11 Aug 2019
- Conference Presentation
Sustainability Research at the Strategy‐Supply Chain Interface
- 11 Aug 2019
- Conference Presentation
Tips for Developing a Strong Research Pipeline and Clear Research Identity
- July–August 2019
- Article
Coupling Labor Codes of Conduct and Supplier Labor Practices: The Role of Internal Structural Conditions
By: Yanhua Bird, Jodi L. Short and Michael W. Toffel
Exploitive working conditions have spurred companies to pressure their suppliers to adopt labor codes of conduct and to conform their labor practices to the standards set forth in those codes. Yet little is known about whether organizational structures such as codes... View Details
- June 2019
- Supplement
Improving Worker Safety in the Era of Machine Learning: Introduction to Predictive Analytics
By: Michael W. Toffel and Dan Levy