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Publications

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      • 2022
      • Working Paper

      The Effectiveness of Digital Interventions on COVID-19 Attitudes and Beliefs

      By: Susan Athey, Kristen Grabarz, Michael Luca and Nils Wernerfelt
      During the course of the COVID-19 pandemic, a common strategy for public health organizations around the world has been to launch interventions via advertising campaigns on social media. Despite this ubiquity, little has been known about their average effectiveness. We...  View Details
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      Athey, Susan, Kristen Grabarz, Michael Luca, and Nils Wernerfelt. "The Effectiveness of Digital Interventions on COVID-19 Attitudes and Beliefs." Harvard Business School Working Paper, No. 22-082, June 2022.
      • June 27, 2022
      • Article

      Amplification in the Evaluation of Multiple Emotional Expressions over Time

      By: Amit Goldenberg, Jonas Schöne, Zi Huang, Timothy D. Sweeny, Desmond C. Ong, Timothy Brady, Maria M. Robinson, David Levari and Jamil Zaki
      Social interactions are dynamic and unfold over time. To make sense of social interactions, people must aggregate sequential information into summary, global evaluations. But how do people do this? Here, to address this question, we conducted nine studies (N = 1,583)...  View Details
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      Goldenberg, Amit, Jonas Schöne, Zi Huang, Timothy D. Sweeny, Desmond C. Ong, Timothy Brady, Maria M. Robinson, David Levari, and Jamil Zaki. "Amplification in the Evaluation of Multiple Emotional Expressions over Time." Nature Human Behaviour (June 27, 2022).
      • June 2022
      • Article

      Conservatism Gets Funded? A Field Experiment on the Role of Negative Information in Novel Project Evaluation

      By: Jacqueline N. Lane, Misha Teplitskiy, Gary Gray, Hardeep Ranu, Michael Menietti, Eva C. Guinan and Karim R. Lakhani
      The evaluation and selection of novel projects lies at the heart of scientific and technological innovation, and yet there are persistent concerns about bias, such as conservatism. This paper investigates the role that the format of evaluation, specifically information...  View Details
      Keywords: Project Evaluation; Innovation; Knowledge Frontier; Information Sharing; Negativity Bias; Projects; Innovation and Invention; Information; Knowledge Sharing
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      Lane, Jacqueline N., Misha Teplitskiy, Gary Gray, Hardeep Ranu, Michael Menietti, Eva C. Guinan, and Karim R. Lakhani. "Conservatism Gets Funded? A Field Experiment on the Role of Negative Information in Novel Project Evaluation." Management Science 68, no. 6 (June 2022): 4478–4495.
      • 2022
      • Working Paper

      Laboratory Safety and Research Productivity

      By: Alberto Galasso, Hong Luo and Brooklynn Zhu
      Are laboratory safety practices a tax on scientific productivity? We examine this question by exploiting the substantial increase in safety regulations at the University of California following the shocking accidental death of a research assistant in 2008....  View Details
      Keywords: Economics Of Science; Risk Perception; Safety Regulations; Safety; Working Conditions; Governing Rules, Regulations, and Reforms; Innovation and Invention
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      Galasso, Alberto, Hong Luo, and Brooklynn Zhu. "Laboratory Safety and Research Productivity." Harvard Business School Working Paper, No. 22-072, May 2022.
      • May 2022
      • Case

      Executive Decision-Making at Zola

      By: Amy C. Edmondson and Michael Roberto
      In April 2020, Rachel Jarrett, President and COO of wedding technology company Zola, called a meeting with the organization’s key decision-makers. The company had previously launched three business expansions: a vendor marketplace, a wedding apparel division, and a...  View Details
      Keywords: Decision Making; Voting; Decision Choices and Conditions; Management Skills; Management; Management Style; Organizations; Organizational Culture; Technology Industry; Entertainment and Recreation Industry; United States
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      Edmondson, Amy C., and Michael Roberto. "Executive Decision-Making at Zola." Harvard Business School Case 622-074, May 2022.
      • 2022
      • Book

      Business Ethics: What Everyone Needs to Know

      By: J.S. Nelson and Lynn A. Stout
      An authoritative and practical guide to business ethics, written in an accessible question-and-answer format. In today's turbulent business climate, business ethics are more important than ever. Surveys of employees show that misconduct is on the rise. Cover stories...  View Details
      Keywords: Business Ethics; Organizational Behavior; Ethics; Governance Controls; Lawfulness
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      Nelson, J.S., and Lynn A. Stout. Business Ethics: What Everyone Needs to Know. New York: Oxford University Press, 2022.
      • 2022
      • Chapter

      Capitalism and the Environment

      By: Geoffrey Jones
      Capitalism drove the environmental decimation of the planet. The environment was seen as a free good, while the consequences of dirty industrial and agricultural processes were seen as external to the firm. Public policies largely allowed this to happen, as politicians...  View Details
      Keywords: History; Environment; Sustainability; Capitalism; Ethics; Business History; Environmental Sustainability; Green Technology; Pollution; Climate Change
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      Jones, Geoffrey. "Capitalism and the Environment." Chap. 8 in Evolutions of Capitalism: Historical Perspectives: 1200–2000, edited by Catherine Casson and Philipp Robinson Rössner, 187–211. Bristol, United Kingdom: Bristol University Press, 2022.
      • March–April 2022
      • Article

      Uncovering the Mitigating Psychological Response to Monitoring Technologies: Police Body Cameras Not Only Constrain but Also Depolarize

      By: Shefali V. Patil and Ethan Bernstein
      Despite organizational psychologists’ long-standing caution against monitoring (citing its reduction in employee autonomy and thus effectiveness), many organizations continue to use it, often with no detriment to performance and with strong support, not protest, from...  View Details
      Keywords: Monitoring; Transparency; Polarization; Body Worn Cameras; Quasi Field Experiment; Analytics and Data Science; Employees; Perception; Law Enforcement
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      Patil, Shefali V., and Ethan Bernstein. "Uncovering the Mitigating Psychological Response to Monitoring Technologies: Police Body Cameras Not Only Constrain but Also Depolarize." Organization Science 33, no. 2 (March–April 2022): 541–570. (*The authors contributed equally to this manuscript.)
      • March 2022 (Revised March 2022)
      • Module Note

      Exploratory Data Analysis

      By: Iavor I. Bojinov, Michael Parzen and Paul J. Hamilton
      This module note provides an overview of exploratory data analysis for an introduction to data science course. It begins by defining the term "data", and then describes the different types of data that companies work with (structured v. unstructured, categorical v....  View Details
      Keywords: Data Analysis; Data Science; Statistics; Data Visualization; Analytics and Data Science; Analysis
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      Bojinov, Iavor I., Michael Parzen, and Paul J. Hamilton. "Exploratory Data Analysis." Harvard Business School Module Note 622-098, March 2022. (Revised March 2022.)
      • March 2022 (Revised March 2022)
      • Module Note

      Linear Regression

      By: Iavor I. Bojinov, Michael Parzen and Paul J. 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; Mathematical Methods; Analytics and Data Science
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      Bojinov, Iavor I., Michael Parzen, and Paul J. Hamilton. "Linear Regression." Harvard Business School Module Note 622-100, March 2022. (Revised March 2022.)
      • March 2022 (Revised March 2022)
      • Module Note

      Statistical Inference

      By: Iavor I. Bojinov, Michael Parzen and Paul J. Hamilton
      This note provides an overview of statistical inference for an introductory data science course. First, the note discusses samples and populations. Next the note describes how to calculate confidence intervals for means and proportions. Then it walks through the logic...  View Details
      Keywords: Data Science; Statistics; Mathematical Methods; Analytics and Data Science
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      Bojinov, Iavor I., Michael Parzen, and Paul J. Hamilton. "Statistical Inference." Harvard Business School Module Note 622-099, March 2022. (Revised March 2022.)
      • 2022
      • Working Paper

      Do Startups Benefit from Their Investors' Reputation? Evidence from a Randomized Field Experiment

      By: Shai Benjamin Bernstein, Kunal Mehta, Richard Townsend and Ting Xu
      We analyze a field experiment conducted on AngelList Talent, a large online search platform for startup jobs. In the experiment, AngelList randomly informed job seekers of whether a startup was funded by a top-tier investor and/or was funded recently. We find that the...  View Details
      Keywords: Startup Labor Market; Investors; Randomized Field Experiment; Certification Effect; Venture Capital; Business Startups; Human Capital; Job Search; Reputation
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      Bernstein, Shai Benjamin, Kunal Mehta, Richard Townsend, and Ting Xu. "Do Startups Benefit from Their Investors' Reputation? Evidence from a Randomized Field Experiment." Harvard Business School Working Paper, No. 22-060, February 2022.
      • March 2022 (Revised April 2022)
      • Case

      In Search of Global Regulation

      By: Geoffrey Jones and Mona Rahmani
      The history of the international regulation of global capitalism is surveyed, addressing the challenges facing firms confronting international, national, and regional regulation. Follows the history of global regulation after 1914, from the League of Nations;...  View Details
      Keywords: History; Multinational Firms and Management; International Relations; Laws and Statutes; Corporate Governance; Business and Government Relations
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      Jones, Geoffrey, and Mona Rahmani. "In Search of Global Regulation." Harvard Business School Case 822-122, March 2022. (Revised April 2022.)
      • 2022
      • Working Paper

      Can a Website Bring Unemployment Down? Experimental Evidence from France

      By: Aïcha Ben Dhia, Bruno Crépon, Esther Mbih, Louise Paul-Delvaux, Bertille Picard and Vincent Pons
      We evaluate the impact of an online platform giving job seekers tips to improve their search and recommendations of new occupations and locations to target, based on their personal data and labor market data. Our experiment used an encouragement design and was...  View Details
      Keywords: Online Platform; Digital Platform; Unemployment; Encouragement Design; Job Search; Jobs and Positions; Internet and the Web; Well-being; Outcome or Result; France
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      Ben Dhia, Aïcha, Bruno Crépon, Esther Mbih, Louise Paul-Delvaux, Bertille Picard, and Vincent Pons. "Can a Website Bring Unemployment Down? Experimental Evidence from France." NBER Working Paper Series, No. 29914, April 2022.
      • March 2022
      • Article

      How Much Does Your Boss Make? The Effects of Salary Comparisons

      By: Zoë B. Cullen and Ricardo Perez-Truglia
      The vast majority of the pay inequality in an organization comes from differences in pay between employees and their bosses. But are employees aware of these pay disparities? Are employees demotivated by this inequality? To address these questions, we conducted a...  View Details
      Keywords: Salary; Inequality; Managers; Career Concerns; Pay Transparency; Wages; Equality and Inequality; Perception; Behavior
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      Cullen, Zoë B., and Ricardo Perez-Truglia. "How Much Does Your Boss Make? The Effects of Salary Comparisons." Journal of Political Economy 130, no. 3 (March 2022): 766–822.
      • Article

      Managing a Polarized Workforce: How to Foster Debate and Promote Trust

      By: Julia A. Minson and Francesca Gino
      One of the toughest challenges leaders face is managing diverse perspectives—and given heightened tensions over politics and movements such as #MeToo and Black Lives Matter, that’s more difficult today than ever before. At the same time, productive disagreement and...  View Details
      Keywords: Polarization; Employees; Perspective; Interpersonal Communication; Organizational Culture; Trust
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      Minson, Julia A., and Francesca Gino. "Managing a Polarized Workforce: How to Foster Debate and Promote Trust." Harvard Business Review 100, no. 2 (March–April 2022): 63–71.
      • Article

      Policies to Influence Perceptions about COVID-19 Risk: The Case of Maps

      By: Claudia Engel, Jonathan Rodden and Marco Tabellini
      Choropleth disease maps have become an important tool for informing the public about the risks posed by COVID-19. In a survey conducted in the U.S. state of Georgia in June 2020, we randomly assigned respondents to view either of two maps. The first one reported...  View Details
      Keywords: Disease Surveillance; Health Pandemics; Risk and Uncertainty; Perception; Policy
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      Engel, Claudia, Jonathan Rodden, and Marco Tabellini. "Policies to Influence Perceptions about COVID-19 Risk: The Case of Maps." Science Advances 8, no. 11 (March 18, 2022).
      • March 2022
      • Article

      Sensitivity Analysis of Agent-based Models: A New Protocol

      By: Emanuele Borgonovo, Marco Pangallo, Jan Rivkin, Leonardo Rizzo and Nicolaj Siggelkow
      Agent-based models (ABMs) are increasingly used in the management sciences. Though useful, ABMs are often critiqued: it is hard to discern why they produce the results they do and whether other assumptions would yield similar results. To help researchers address such...  View Details
      Keywords: Agent-based Modeling; Sensitivity Analysis; Design Of Experiments; Total Order Sensitivity Indices; Organizations; Behavior; Decision Making; Mathematical Methods
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      Borgonovo, Emanuele, Marco Pangallo, Jan Rivkin, Leonardo Rizzo, and Nicolaj Siggelkow. "Sensitivity Analysis of Agent-based Models: A New Protocol." Computational and Mathematical Organization Theory 28, no. 1 (March 2022): 52–94.
      • Article

      A 680,000-Person Megastudy of Nudges to Encourage Vaccination in Pharmacies

      By: Katherine L. Milkman, Linnea Gandhi, Mitesh S. Patel, Heather N. Graci, Dena M. Gromet, Hung Ho, Joseph S. Kay, Timothy W. Lee, Jake Rothschild, Jonathan E. Bogard, Ilana Brody, Christopher F. Chabris, Edward Chang, Gretchen B. Chapman, Jennifer E. Dannals, Noah J. Goldstein, Amir Goren, Hal Hershfield, Alex Hirsch, Jillian Hmurovic, Samantha Horn, Dean Karlan, Ariella S. Kristal, Cait Lamberton, Michael N. Meyer, Allison H. Oakes, Maurice E. Schweitzer, Maheen Shermohammed, Jaochim H. Talloen, Caleb Warren, Ashley Whillans, Kuldeep N. Yadav, Julian J. Zlatev, Ron Berman, Chalanda N. Evans, Rahul Ladhania, Jens Ludwig, Nina Mazar, Sendhil Mullainathan, Christopher K. Snider, Jann Spiess, Eli Tsukayama, Lyle Ungar, Christophe Van den Bulte, Kevin G. Volpp and Angela L. Duckworth
      Encouraging vaccination is a pressing policy problem. To assess whether text-based reminders can encourage pharmacy vaccination and what kinds of messages work best, we conducted a megastudy. We randomly assigned 689,693 Walmart pharmacy patients to receive one of 22...  View Details
      Keywords: Vaccination; Vaccines; Nudges; Communication Strategy; Communication Technology; Consumer Behavior; Health Care and Treatment
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      Milkman, Katherine L., Linnea Gandhi, Mitesh S. Patel, Heather N. Graci, Dena M. Gromet, Hung Ho, Joseph S. Kay, Timothy W. Lee, Jake Rothschild, Jonathan E. Bogard, Ilana Brody, Christopher F. Chabris, Edward Chang, Gretchen B. Chapman, Jennifer E. Dannals, Noah J. Goldstein, Amir Goren, Hal Hershfield, Alex Hirsch, Jillian Hmurovic, Samantha Horn, Dean Karlan, Ariella S. Kristal, Cait Lamberton, Michael N. Meyer, Allison H. Oakes, Maurice E. Schweitzer, Maheen Shermohammed, Jaochim H. Talloen, Caleb Warren, Ashley Whillans, Kuldeep N. Yadav, Julian J. Zlatev, Ron Berman, Chalanda N. Evans, Rahul Ladhania, Jens Ludwig, Nina Mazar, Sendhil Mullainathan, Christopher K. Snider, Jann Spiess, Eli Tsukayama, Lyle Ungar, Christophe Van den Bulte, Kevin G. Volpp, and Angela L. Duckworth. "A 680,000-Person Megastudy of Nudges to Encourage Vaccination in Pharmacies." Proceedings of the National Academy of Sciences 119, no. 6 (February 8, 2022).
      • Article

      Costs Without Value When Treating Pediatric Behavioral Patients in the ED

      By: Marcella Jewell, Syed S. Shehab, Robert S. Kaplan, Jack Fanton and Joeli Hettler
      Pediatric Emergency Department (ED) visits have greatly increased in recent years. An academic pediatric ED that annually treats about 1,000 behavioral health patients conducted a study to assess the true cost of caring for nonacute behavioral health patients. It...  View Details
      Keywords: Costs; Value; Healthcare; Health Care and Treatment; Cost Management
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      Jewell, Marcella, Syed S. Shehab, Robert S. Kaplan, Jack Fanton, and Joeli Hettler. "Costs Without Value When Treating Pediatric Behavioral Patients in the ED." NEJM Catalyst Innovations in Care Delivery 3, no. 2 (February 2022).
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