Publications

Alberto Cavallo is the Thomas S. Murphy Professor of Business Administration at Harvard Business School, where he teaches in the Business, Government, and the International Economy (BGIE) unit, a Faculty Research Fellow at the National Bureau of Economic Research, a... View Details

March 2023 (Revised June 2023)
Case

Layoffs in the Tech Industry: 2022–2023

By: Sandra J. Sucher and Marilyn Morgan Westner

This case examines the mass layoffs that swept through the tech industry (2022-2023) through the lens of four companies: Twitter, Stripe, Meta, and Google. How these companies implemented workforce change through mass layoffs raises critical questions applicable beyond... View Details

Keywords: Layoffs; Human Resource Management; Workforce Reductions; Ethics; Human Resources; Management; Values and Beliefs; Employee Relationship Management; Resignation and Termination; Compensation and Benefits; Technology Industry; United States; United Kingdom

23 Aug 2016
News

7 Charts Show How Political Affiliation Shapes U.S. Boards

2020
Working Paper

Engineering Serendipity: When Does Knowledge Sharing Lead to Knowledge Production?

By: Jacqueline N. Lane, Ina Ganguli, Patrick Gaule, Eva C. Guinan and Karim R. Lakhani

We investigate how knowledge similarity between two individuals is systematically related to the likelihood that a serendipitous encounter results in knowledge production. We conduct a natural field experiment at a medical research symposium, where we exogenously... View Details

Keywords: Cognitive Similarity; Knowledge Creation; Knowledge Sharing; Knowledge Dissemination; Relationships

SSRN

Read Now

March 2022 (Revised January 2025)
Technical Note

Linear Regression

By: Iavor I. Bojinov, Michael Parzen and Paul Hamilton

This note provides an overview of linear regression for an introductory data science course. It begins with a discussion of correlation, and explains why correlation does not necessarily imply causation. The note then describes the method of least squares, and how to... View Details

Keywords: Data Science; Linear Regression; Mathematical Modeling; Mathematical Methods; Analytics and Data Science

29 Jul 2016
Video

M.V. Subbiah Full Interview

19 Jun 2015
News

When a sudden boost in status at work isn't all good

2025
Working Paper

Code-Washing: Evidence from Open-Source Blockchain Startups

By: Ofir Gefen, Daniel Rabetti, Yannan Sun and Che Zhang

This study examines startups' management of source code repositories, distinguishing authentic developers ("code-producers''), from those inflating activity to mislead investors ("code-washers''). Using global blockchain startup and GitHub data, we find that... View Details

Keywords: Entrepreneurial Finance; Open Source Distribution; Business Startups

SSRN

July 2021
Article

Medical Debt in the U.S., 2009–2020

By: Raymond Kluender, Neale Mahoney, Francis Wong and Wesley Yin

Importance: Medical debt is an increasing concern in the US, yet there is limited understanding of the amount and distribution of medical debt, and its association with health care policies.

Objective: To measure the amount of medical debt nationally and by... View Details

Keywords: Debt; Borrowing and Debt; Health Care and Treatment; United States

Read Now

August, 2022
Article

Billing and Insurance-Related Administrative Costs: A Cross-National Analysis

By: Barak D. Richman, Robert S. Kaplan, Japees Kohli, Dennis Purcell, Mahek Shah, Igna Bonfrer, Brian Golden, Rosemary Hannam, Will Mitchell, Daniel Cehic, Garry Crispin and Kevin A. Schulman

Billing and insurance-related costs are a significant source of wasteful health care spending in Organization for Economic Cooperation and Development nations, but these administrative burdens vary across national systems. We executed a microlevel accounting of these... View Details

Keywords: Health Care Costs; Administrative Costs; Cost; Health Care and Treatment; Health Industry

Find at Harvard

Register to Read

22 Nov 2014
News

Fifty Years Later, A Look At How Harvard's Women MBAs Have Fared

July 1977 (Revised April 1995)
Background Note

Managing a Task Force

Describes several principles for improving the effectiveness of internal task forces. Suggests a number of guidelines for starting up a task force, conducting the first meeting, managing the group's activities, and completing the project. View Details

Keywords: Management; Groups and Teams

Charlotte Robertson is an Assistant Professor in the Business, Government, and the International Economy Unit at Harvard Business School. She teaches BGIE in the MBA required curriculum.

Professor Robertson conducts research on the history of financial... View Details

14 Feb 2014
News

Playing Cupid makes us happy

February 2004 (Revised March 2004)
Background Note

Profitability Drivers in Professional Service Firms

By: Ashish Nanda

This case presents a simple model of the drivers of profitability in a professional service partnership and conducts an empirical exploration of the determinants of profitability among AmLaw 100 firms over the period 1994 to 1999. View Details

Keywords: Profitability; Model; Profit; Partners and Partnerships; Law; Service Industry