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All HBS Web
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- Faculty Publications (134)
- Article
Tabulated Nonsense? Testing the Validity of the Ethnographic Atlas
By: Duman Bahrami-Rad, Anke Becker and Joseph Henrich
The Ethnographic Atlas (Murdock, 1967), an anthropological database, is widely used across the social sciences. The Atlas is a quantified and discretely categorized collection of information gleaned from ethnographies covering more than 1200...
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Bahrami-Rad, Duman, Anke Becker, and Joseph Henrich. "Tabulated Nonsense? Testing the Validity of the Ethnographic Atlas." Art. 109880. Economics Letters 204 (July 2021).
- Article
Towards the Unification and Robustness of Perturbation and Gradient Based Explanations
By: Sushant Agarwal, Shahin Jabbari, Chirag Agarwal, Sohini Upadhyay, Steven Wu and Himabindu Lakkaraju
As machine learning black boxes are increasingly being deployed in critical domains such as healthcare and criminal justice, there has been a growing emphasis on developing techniques for explaining these black boxes in a post hoc manner. In this work, we analyze two...
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Keywords:
Machine Learning;
Black Box Explanations;
Decision Making;
Forecasting and Prediction;
Information Technology
Agarwal, Sushant, Shahin Jabbari, Chirag Agarwal, Sohini Upadhyay, Steven Wu, and Himabindu Lakkaraju. "Towards the Unification and Robustness of Perturbation and Gradient Based Explanations." Proceedings of the International Conference on Machine Learning (ICML) 38th (2021).
- Article
Measuring Audit Quality
By: Shivaram Rajgopal, Suraj Srinivasan and Xin Zheng
In this paper, we document 45 specific allegations related to audit deficiencies based on GAAS, as detailed in 141 AAERs and 153 securities class action lawsuits over the violation years 1978–2016. Next, we use these allegations to validate existing popular proxies of...
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Keywords:
Audit Quality;
Audit Deficiency;
AAER;
Securities Class Action Lawsuits;
Enforcement;
Accounting Audits;
Quality;
Measurement and Metrics
Rajgopal, Shivaram, Suraj Srinivasan, and Xin Zheng. "Measuring Audit Quality." Review of Accounting Studies 26, no. 2 (June 2021): 559–619.
- May 2021
- Article
Choice Architecture in Physician–patient Communication: A Mixed-methods Assessment of Physicians' Competency
By: J. Hart, K. Yadav, S. Szymanski, A. Summer, A. Tannenbaum, J. Zlatev, D. Daniels and S.D. Halpern
Background: Clinicians’ use of choice architecture, or how they present options, systematically influences the choices made by patients and their surrogate decision makers. However, clinicians may incompletely understand this influence....
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Keywords:
Choice Architecture;
Health Care and Treatment;
Interpersonal Communication;
Decision Choices and Conditions;
Competency and Skills
Hart, J., K. Yadav, S. Szymanski, A. Summer, A. Tannenbaum, J. Zlatev, D. Daniels, and S.D. Halpern. "Choice Architecture in Physician–patient Communication: A Mixed-methods Assessment of Physicians' Competency." BMJ Quality & Safety 30, no. 5 (May 2021).
- May–June 2021
- Article
Why Start-ups Fail
If you’re launching a business, the odds are against you: Two-thirds of start-ups never show a positive return. Unnerved by that statistic, a professor of entrepreneurship at Harvard Business School set out to discover why. Based on interviews and surveys with hundreds...
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Eisenmann, Thomas R. "Why Start-ups Fail." Harvard Business Review 99, no. 3 (May–June 2021): 76–85.
- February 2021 (Revised March 2022)
- Case
TikTok in 2020: Super App or Supernova?
By: Jeffrey F. Rayport, Dan Maher and Dan O'Brien
TikTok’s parent company, ByteDance, was launched in 2012 around a simple idea – helping users entertain themselves on their smartphones while on the Beijing Subway. In less than a decade, it had become one of the world’s most valuable private companies, with investors...
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Keywords:
Business Model;
Business Startups;
Business Organization;
Change Management;
Disruption;
Cross-Cultural and Cross-Border Issues;
Global Strategy;
Health Pandemics;
Innovation Strategy;
Growth and Development Strategy;
Growth Management;
Brands and Branding;
Marketing Strategy;
Marketing Channels;
Network Effects;
Digital Platforms;
Product Design;
Product Development;
Partners and Partnerships;
Opportunities;
Social Issues;
Mobile and Wireless Technology;
Internet and the Web;
Value Creation;
United States;
China
Rayport, Jeffrey F., Dan Maher, and Dan O'Brien. "TikTok in 2020: Super App or Supernova?" Harvard Business School Case 821-087, February 2021. (Revised March 2022.)
- February 2021
- Article
Health Care Measurements That Improve Patient Outcomes
By: Robert S. Kaplan, Lara Jehi, Clifford Y. Ko, Andrea Pusic and Mary Witkowski
This article describes the challenges and solutions in determining whether a patient’s treatment has been successful. Such an assessment depends on multiple factors, including the patient’s pretreatment status; the qualifications of personnel performing the treatment;...
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Keywords:
Outcomes Measurement;
Health Care and Treatment;
Outcome or Result;
Measurement and Metrics
Kaplan, Robert S., Lara Jehi, Clifford Y. Ko, Andrea Pusic, and Mary Witkowski. "Health Care Measurements That Improve Patient Outcomes." NEJM Catalyst Innovations in Care Delivery 2, no. 2 (February 2021).
- January 2021
- Supplement
Bespoken Spirits: Disrupting Distilling
By: Benjamin C. Esty and Daniel Fisher
On October 7, 2020, Bespoken Spirits publicly announced it had received $2.6 million of seed funding for its “sustainable maturation process,” a process that could produce award-winning whiskeys in just days rather than years using a novel technology and data science. ...
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Keywords:
Business Ventures;
Business Strategy;
Competitive Advantage;
Disruption;
Entrepreneurship;
Environmental Sustainability;
Cash Flow;
Disruptive Innovation;
Innovation Strategy;
Brands and Branding;
Business Model;
Consumer Products Industry;
Food and Beverage Industry;
Service Industry;
United States;
California
- January 2021
- Case
Bespoken Spirits: Disrupting Distilling
By: Benjamin C. Esty and Daniel Fisher
On October 7, 2020, Bespoken Spirits publicly announced it had received $2.6 million of seed funding for its “sustainable maturation process,” a process that could produce award-winning whiskeys in just days rather than years using a novel technology and data science. ...
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Keywords:
Business Ventures;
Business Strategy;
Competitive Advantage;
Disruption;
Entrepreneurship;
Environmental Sustainability;
Cash Flow;
Disruptive Innovation;
Innovation Strategy;
Brands and Branding;
Business Model;
Consumer Products Industry;
Food and Beverage Industry;
Service Industry;
United States;
California
Esty, Benjamin C., and Daniel Fisher. "Bespoken Spirits: Disrupting Distilling." Harvard Business School Case 721-419, January 2021.
- Article
The Only Thing to Fear Is Unproductive Fear
By: Amy C. Edmondson
Fear can paralyse—or, targeted on valid concerns, can stimulate effective action and innovation.
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Keywords:
Organizational Culture
Edmondson, Amy C. "The Only Thing to Fear Is Unproductive Fear." Dialogue Q1 (2021).
- December 2020 (Revised September 2023)
- Case
PG&E and the First Climate Change Bankruptcy
By: Stuart C. Gilson and Sarah L. Abbott
In early 2020, the California-based utility PG&E filed a second amended plan of reorganization. PG&E had filed for Chapter 11 bankruptcy in the face of more than $30 billion of legal claims brought against it for its alleged role in causing California wildfires. The...
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Keywords:
Chapter 11;
Utilities;
Liabilities;
Restructuring;
Insolvency and Bankruptcy;
Debt Securities;
Legal Liability;
Climate Change;
Utilities Industry;
United States
Gilson, Stuart C., and Sarah L. Abbott. "PG&E and the First Climate Change Bankruptcy." Harvard Business School Case 221-057, December 2020. (Revised September 2023.)
- 2020
- Working Paper
Targeting for Long-Term Outcomes
By: Jeremy Yang, Dean Eckles, Paramveer Dhillon and Sinan Aral
Decision makers often want to target interventions so as to maximize an outcome that is observed only in the long term. This typically requires delaying decisions until the outcome is observed or relying on simple short-term proxies for the long-term outcome. Here we...
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Keywords:
Targeted Marketing;
Optimization;
Churn Management;
Marketing;
Customer Relationship Management;
Policy;
Learning;
Outcome or Result
Yang, Jeremy, Dean Eckles, Paramveer Dhillon, and Sinan Aral. "Targeting for Long-Term Outcomes." Working Paper, October 2020.
- July 2020
- Article
Tell It Like It Is: When Politically Incorrect Language Promotes Authenticity
By: J. Schroeder, M. Rosenblum and F. Gino
When a person’s language appears political—such as being politically correct or incorrect—it can influence fundamental impressions of him or her. Political correctness is “using language or behavior to seem sensitive to others’ feelings, especially those others who...
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Schroeder, J., M. Rosenblum, and F. Gino. "Tell It Like It Is: When Politically Incorrect Language Promotes Authenticity." Journal of Personality and Social Psychology 119, no. 1 (July 2020): 75–103.
- Article
Development of a Deep Learning Algorithm for Periapical Disease Detection in Dental Radiographs
By: Michael G. Endres, Florian Hillen, Marios Salloumis, Ahmad R. Sedaghat, Stefan M. Niehues, Olivia Quatela, Henning Hanken, Ralf Smeets, Benedicta Beck-Broichsitter, Carsten Rendenbach, Karim R. Lakhani, Max Helland and Robert A. Gaudin
Periapical radiolucencies, which can be detected on panoramic radiographs, are one of the most common radiographic findings in dentistry and have a differential diagnosis including infections, granuloma, cysts, and tumors. In this study, we seek to investigate the...
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Keywords:
Artificial Intelligence;
Diagnosis;
Computer-assisted;
Image Interpretation;
Machine Learning;
Radiography;
Panoramic Radiograph;
AI and Machine Learning
Endres, Michael G., Florian Hillen, Marios Salloumis, Ahmad R. Sedaghat, Stefan M. Niehues, Olivia Quatela, Henning Hanken, Ralf Smeets, Benedicta Beck-Broichsitter, Carsten Rendenbach, Karim R. Lakhani, Max Helland, and Robert A. Gaudin. "Development of a Deep Learning Algorithm for Periapical Disease Detection in Dental Radiographs." Diagnostics 10, no. 6 (June 2020).
- 2020
- Working Paper
Social Interactions in Pandemics: Fear, Altruism, and Reciprocity
By: Laura Alfaro, Ester Faia, Nora Lamersdorf and Farzad Saidi
In SIR models, homogeneous or with a network structure, infection rates are assumed to be exogenous. However, individuals adjust their behavior. Using daily data for 89 cities worldwide, we document that mobility falls in response to fear, as approximated by Google...
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Keywords:
Social Interactions;
Pandemics;
Mobility;
Cities;
SIR Networks;
Social Preferences;
Social Planner;
Targeted Policies;
Health Pandemics;
Interpersonal Communication;
Behavior;
Policy
Alfaro, Laura, Ester Faia, Nora Lamersdorf, and Farzad Saidi. "Social Interactions in Pandemics: Fear, Altruism, and Reciprocity." NBER Working Paper Series, No. 27134, May 2020.
- March 2020 (Revised April 2020)
- Case
CarTrade
By: Rajiv Lal and Shreya Ramachandran
Vinay Sanghi, the founder and CEO of CarTrade, had been trying different business strategies to keep the company, which he founded in 2010 as an online marketplace for used and new cars, profitable and on track for growth. In a crowded and disorganized dealer...
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Keywords:
Online Marketplace;
Automobiles;
Customer Base;
Internet and the Web;
Growth and Development Strategy;
Business Model;
Financing and Loans;
E-commerce;
Digital Platforms;
Digital Marketing;
Auto Industry;
Retail Industry;
India;
Mumbai
Lal, Rajiv, and Shreya Ramachandran. "CarTrade." Harvard Business School Case 520-088, March 2020. (Revised April 2020.)
- March 2020
- Case
SRS and the Defense Innovation Unit: Rethinking Procurement
By: Paul A. Gompers and David Lane
SRS and the Defense Innovation Unit (DIU) follows the process by which SRS, a lean maker of remotely-operated submersible vehicles, navigates the DIU’s acquisition process. Set up in 2015 to speed the U.S. military’s access to promising commercial technologies, the DIU...
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Keywords:
Procurement;
Defense Innovation Unit;
Business Startups;
Acquisition;
Technological Innovation;
Investment;
Commercialization;
United States
Gompers, Paul A., and David Lane. "SRS and the Defense Innovation Unit: Rethinking Procurement." Harvard Business School Case 220-047, March 2020.
- March 2020
- Article
Diagnosing Missing Always at Random in Multivariate Data
By: Iavor I. Bojinov, Natesh S. Pillai and Donald B. Rubin
Models for analyzing multivariate data sets with missing values require strong, often assessable, assumptions. The most common of these is that the mechanism that created the missing data is ignorable—a twofold assumption dependent on the mode of inference. The first...
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Keywords:
Missing Data;
Diagnostic Tools;
Sensitivity Analysis;
Hypothesis Testing;
Missing At Random;
Row Exchangeability;
Analytics and Data Science;
Mathematical Methods
Bojinov, Iavor I., Natesh S. Pillai, and Donald B. Rubin. "Diagnosing Missing Always at Random in Multivariate Data." Biometrika 107, no. 1 (March 2020): 246–253.
- Article
A Theories-in-Use Approach to Building Marketing Theory
By: G. Zaltman, Valarie A. Zeithaml, Bernard Jaworski, Ajay K. Kohli, Kapil R. Tuli and Wolfgang Ulaga
This article’s objective is to inspire and provide guidance on the development of marketing knowledge based on the theories-in-use (TIU) approach. The authors begin with a description of the TIU approach and compare it with other inductive and deductive research...
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Keywords:
Building Theory;
Grounded Theory;
Theories-in-use;
Theory Construction;
Theory Development;
Marketing;
Knowledge;
Theory
Zaltman, G., Valarie A. Zeithaml, Bernard Jaworski, Ajay K. Kohli, Kapil R. Tuli, and Wolfgang Ulaga. "A Theories-in-Use Approach to Building Marketing Theory." Journal of Marketing 84, no. 1 (January 2020): 32–51.
- January 2020
- Article
Rethinking Measurement of Pay Disparity and Its Relation to Firm Performance
By: Ethan Rouen
I develop measures of firm-level pay disparity and examine their relation to firm performance. Using comprehensive compensation data for a large sample of firms, I find no statistically significant relation between the ratio of CEO-to-mean employee compensation and...
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Keywords:
Pay Disparity;
Pay Ratio;
CEO Pay Ratio;
Income Inequality;
Executive Compensation;
Employees;
Wages;
Equality and Inequality;
Business Ventures;
Performance
Rouen, Ethan. "Rethinking Measurement of Pay Disparity and Its Relation to Firm Performance." Accounting Review 95, no. 1 (January 2020): 343–378.