Publications

2022
Working Paper

The Stock Market Value of Human Capital Creation

By: Matthias Regier and Ethan Rouen

We develop a measure of firm-year-specific human capital investment from publicly disclosed personnel expenses (PE) and examine the stock market valuation of this investment. Measuring the future value of PE (PEFV) based on the relation between lagged... View Details

Keywords: Intangibles; Market Valuation; Human Capital; Stocks; Financial Markets; Valuation

SSRN

2019
Working Paper

Who Drives Digital Innovation? Evidence from the U.S. Medical Device Industry

By: Cirrus Foroughi and Ariel Dora Stern

Does the large-scale technological change that is characteristic of an industry-wide digital transformation entrench industry leaders or enable the rise of new entrants? We offer a novel approach to this question by studying the medical device industry, a unique... View Details

Keywords: Innovation; Medical Devices; Digitization; Medical Technology; Technological Innovation; Applications and Software; Market Entry and Exit; Industry Growth; Medical Devices and Supplies Industry; United States

2012
Working Paper

With Us or Against Us? Networks, Identity and Order in a Virtual World

By: Magnus Thor Torfason

Social networks and social groups have both been seen as important to discouraging malfeasance and supporting the global pro-social norms that underlie social order, but have typically been treated either as pure substitutes or as having completely independent effects.... View Details

Keywords: Social Norms; Social Networks; Triadic Closure; Social Groups; Group Identity; Groups and Teams; Boundaries; Organizations; Identity; Social and Collaborative Networks; Societal Protocols

14 Feb 2011
Research & Ideas

Clay Christensen’s Milkshake Marketing

characteristics of an ideal milkshake (thick, thin, chunky, smooth, fruity, chocolaty, etc.). The would-be customers answered as honestly as they could, and the company responded to the feedback. But alas, milkshake sales did not improve.... View Details

Keywords: by Carmen Nobel; Retail; Service; Consumer Products; Food & Beverage

11 Jun 2024
In Practice

The Harvard Business School Faculty Summer Reader 2024

As the vacation season looms, Harvard Business School faculty members share recommendations for a little light reading. Spoiler alert: Lessons in Chemistry tops two of their beach-read lists. For those whose brains can’t—or won’t—turn off, HBS faculty also suggest some... View Details

Keywords: by Avery Forman

19 Apr 2011
Working Paper Summaries

Top Executive Background and Financial Reporting Choice: The Case of Goodwill Impairment

Keywords: by Francois Brochet & Kyle Welch; Accounting

2023
Working Paper

Firm Purpose and Problem Wickedness: A Review of the Academic Literature

By: Caroline Adelson, Charlotte Kuller, Cate Tompkins, Ellora Sarkar, Samantha Price and Marco Iansiti

Our understanding of the firm’s role in society has evolved greatly over the past 70 years, with more recent years seeing a sharp rise in interest for how firms can contribute more than profits to society – that is, have a purpose beyond profits. Businesses engaged in... View Details

Keywords: Mission and Purpose; Problems and Challenges

October 2023
Article

Innovation on Wings: When Do Nonstop Flights Matter for Global Innovation?

By: Dany Bahar, Prithwiraj Choudhury, Do Yoon Kim and Wesley Koo

We study whether, when, and how better connectivity through nonstop flights leads to positive innovation outcomes for firms in the global context. Using unique data of all flights emanating from 5,015 airports around the globe from 2005 to 2015 and exploiting a... View Details

Keywords: Nonstop Flights; Collaborative Innovation and Invention; Patents; Research and Development; Air Transportation Industry

February 2021
Tutorial

Assessing Prediction Accuracy of Machine Learning Models

By: Michael Toffel and Natalie Epstein

This video describes how to assess the accuracy of machine learning prediction models, primarily in the context of machine learning models that predict binary outcomes, such as logistic regression, random forest, or nearest neighbor models. After introducing and... View Details

Keywords: Statistics; Experiments; Forecasting and Prediction; Performance Evaluation; AI and Machine Learning

Purchase

June 2020
Background Note

Customer Management Dynamics and Cohort Analysis

By: Elie Ofek, Barak Libai and Eitan Muller

The digital revolution has allowed companies to amass considerable amounts of data on their customers. Using this information to generate actionable insights is fast becoming a critical skill that firms must master if they wish to effectively compete and win in today’s... View Details

Keywords: Cohort Analysis; Customers; Analytics and Data Science; Segmentation; Analysis; Customer Value and Value Chain

Educators

Purchase

2016
Working Paper

The Microstructure of Work: How Unexpected Breaks Let You Rest, but Not Lose Focus

By: Pradeep Pendem, Paul Green, Bradley R. Staats and Francesca Gino

How best to structure the work day is an important operational question for organizations. A key structural consideration is the effective use of breaks from work. Breaks serve the critical purpose of allowing employees to recharge, but in the short term, translate to... View Details

Keywords: Breaks; Productivity; Attention; Workload; Harvesting; Working Conditions; Behavior; Performance Productivity; Organizations

SSRN

2013
Working Paper

Overcoming Organizational Barriers to Waste Heat Recovery

By: Chonnikarn Fern Jira and Deishin Lee

Waste heat recovery is a proven technology for improving energy efficiency and reducing the environmental impact of energy-intensive manufacturing firms. However, evidence suggests that opportunities for recovering waste heat are untapped. By showing how the process... View Details

Keywords: Sustainability; Energy; Capital Budgeting; Waste Heat Recovery; Manufacturing; Energy Industry; Manufacturing Industry

2012
Working Paper

The Effect of Supply Chain Complementarities on Local Food

By: Baris Ata, Deishin Lee and Mustafa H. Tongarlak

We study the operational tradeoffs of a retailer and farmers in a fresh produce supply chain to determine the equilibrium supply chain structure. These operational tradeoffs arise as a result of the geographic constraints posed by the availability of arable land and... View Details

Keywords: Geographic Location; Plant-Based Agribusiness; Food; Supply Chain; Agriculture and Agribusiness Industry

December 2007
Article

Learning to Live with Governments: Unilever in India and Turkey, 1950-1980

By: G. Jones

A noteworthy characteristic of the contemporary global economy is the uneven distribution of world foreign direct investment (FDI). In 2007 three-quarters of world FDI was located in developed countries. The residual was concentrated in a small number of emerging... View Details

Keywords: Developing Countries and Economies; Ethics; Foreign Direct Investment; Governing Rules, Regulations, and Reforms; Business and Community Relations; Business and Government Relations; Consumer Products Industry; India; Turkey

June 2008
Article

Bringing the Context Back In: Settings and the Search for Syndicate Partners in Venture Capital Investment Networks

Most existing network-based theories of relationship formation, whether based on homophily or structural constraint, imply that actors form highly cohesive, homogenous clusters. Yet real networks also include many "bridging" ties—isolated links between parties that... View Details

Keywords: Venture Capital; Networks; Theory; Partners and Partnerships; Investment; Risk and Uncertainty; Business Growth and Maturation; Size; Geographic Location