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Publications

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    • All HBS Web  (1,424)
      • Faculty Publications  (176)

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      • Fall 2023
      • Article

      Infringing Use as a Path to Legal Consumption: Evidence from a Field Experiment

      By: Hong Luo and Julie Holland Mortimer
      Digitization has transformed how users find and use copyrighted goods, but many existing legal options remain difficult to access, possibly leading to infringement. In a field experiment, we contact firms that are caught infringing on expensive digital images. Emails...  View Details
      Keywords: Copyright Infringement; Field Experiment; Copyright; Lawfulness
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      Luo, Hong, and Julie Holland Mortimer. "Infringing Use as a Path to Legal Consumption: Evidence from a Field Experiment." Special Issue on Field Experiments edited by Michael Luca and Sarah Moshary. Journal of Economics & Management Strategy 32, no. 3 (Fall 2023): 523–542.
      • 2023
      • Article

      On the Impact of Actionable Explanations on Social Segregation

      By: Himabindu Lakkaraju and Ruijiang Gao
      As predictive models seep into several real-world applications, it has become critical to ensure that individuals who are negatively impacted by the outcomes of these models are provided with a means for recourse. To this end, there has been a growing body of research...  View Details
      Keywords: Forecasting and Prediction; AI and Machine Learning; Outcome or Result
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      Lakkaraju, Himabindu, and Ruijiang Gao. "On the Impact of Actionable Explanations on Social Segregation." Proceedings of the International Conference on Machine Learning (ICML) 40th (2023): 10727–10743.
      • 2023
      • Working Paper

      Much Ado About Nothing? Overreaction to Random Regulatory Audits

      By: Samuel Antill and Joseph Kalmenovitz
      Regulators often audit firms to detect non-compliance. Exploiting a natural experiment in the lobbying industry, we show that firms overreact to audits and this response distorts prices and reduces welfare. Each year, federal regulators audit a random sample of...  View Details
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      Antill, Samuel, and Joseph Kalmenovitz. "Much Ado About Nothing? Overreaction to Random Regulatory Audits." Working Paper, August 2023.
      • June 2023
      • Case

      Tractor Supply Co

      By: David L. Ager and Michael A. Roberto
      In February 2023, Hal Lawton, CEO of Tractor Supply Co, the largest farm and ranch retailer in the United States reflected on the company’s 70% growth between 2019 and 2022. Economists had begun to predict an economic downturn and experts were predicting softening...  View Details
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      Ager, David L., and Michael A. Roberto. "Tractor Supply Co." Harvard Business School Case 923-302, June 2023.
      • June 2023
      • Article

      Amplification of Emotion on Social Media

      By: Amit Goldenberg and Robb Willer
      Why do expressions of emotion seem so heightened on social media? Brady et al. argue that extreme moral outrage on social media is not only driven by the producers and sharers of emotional expressions, but also by systematic biases in the way people that perceive moral...  View Details
      Keywords: Emotion; Perception; Prejudice and Bias; Emotions; Social Media
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      Goldenberg, Amit, and Robb Willer. "Amplification of Emotion on Social Media." Nature Human Behaviour 7, no. 6 (June 2023): 845–846.
      • May 2023
      • Article

      Decarbonizing Health Care: Engaging Leaders in Change

      By: Vivian S. Lee, Kathy Gerwig, Emily Hough, Kedar Mate, Robert Biggio and Robert S. Kaplan
      Health care leaders are often surprised to learn that their operations contribute significantly to a warming climate. In addition to their roles as responders to and victims of extreme weather events, health care organizations have an obligation to reduce...  View Details
      Keywords: Health Care; Decarbonization; Carbon Emissions; Net-zero Emissions; Climate Change; Health Care and Treatment; Health Industry
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      Lee, Vivian S., Kathy Gerwig, Emily Hough, Kedar Mate, Robert Biggio, and Robert S. Kaplan. "Decarbonizing Health Care: Engaging Leaders in Change." NEJM Catalyst Innovations in Care Delivery 4, no. 5 (May 2023).
      • April 19, 2023
      • Editorial

      Extreme Views Are More Attractive Than Moderate Ones

      By: Amit Goldenberg
      Do you ever feel like everyone on social media has a more extreme viewpoint than your own? We often blame social media companies for the cacophony of politically extreme opinions around us. After all, these companies are generally motivated to promote the most...  View Details
      Keywords: Social Media; Networks
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      Goldenberg, Amit. "Extreme Views Are More Attractive Than Moderate Ones." Scientific American (website) (April 19, 2023).
      • 2023
      • Working Paper

      Avoiding Idiosyncratic Volatility: Flow Sensitivity to Individual Stock Returns

      By: Marco Di Maggio, Francesco Franzoni, Shimon Kogan and Ran Xing
      Despite positive and significant earnings announcement premia, we find that institutional investors reduce their exposure to stocks before earnings announcements. A novel result on the sensitivity of flows to individual stock returns provides a potential explanation....  View Details
      Keywords: New Trading; Mutual Funds; Fund Flows; Limits To Arbitrage; Financial Constraints; Earnings Announcements; Institutional Investing; Stocks
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      Di Maggio, Marco, Francesco Franzoni, Shimon Kogan, and Ran Xing. "Avoiding Idiosyncratic Volatility: Flow Sensitivity to Individual Stock Returns." Harvard Business School Working Paper, No. 23-072, March 2023. (Revise and Resubmit to The Journal of Finance.)
      • 2023
      • Working Paper

      Complexity and Time

      By: Benjamin Enke, Thomas Graeber and Ryan Oprea
      We provide experimental evidence that core intertemporal choice anomalies -- including extreme short-run impatience, structural estimates of present bias, hyperbolicity and transitivity violations -- are driven by complexity rather than time or risk preferences. First,...  View Details
      Keywords: Decision Choices and Conditions; Motivation and Incentives
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      Enke, Benjamin, Thomas Graeber, and Ryan Oprea. "Complexity and Time." NBER Working Paper Series, No. 31047, March 2023.
      • February 2023
      • Article

      Homophily and Acrophily as Drivers of Political Segregation

      By: Amit Goldenberg, Joseph M. Abruzzo, Zi Huang, Jonas Schone, David Bailey, Robb Willer, Eran Halperin and James J. Gross
      Political segregation is an important social problem, increasing polarization and impeding effective governance. Previous work has viewed the central driver of segregation to be political homophily, the tendency to associate with others who have similar views. Here we...  View Details
      Keywords: Political Affiliation; Extremism; Values and Beliefs; Identity; Groups and Teams; Emotions; Civil Society or Community
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      Goldenberg, Amit, Joseph M. Abruzzo, Zi Huang, Jonas Schone, David Bailey, Robb Willer, Eran Halperin, and James J. Gross. "Homophily and Acrophily as Drivers of Political Segregation." Nature Human Behaviour 7, no. 2 (February 2023): 219–230.
      • October 26, 2022
      • Article

      Climate Risk Is Growing. Is Your Company Prepared?

      By: John D. Macomber
      Most people don’t have a strategy for how to handle the worsening perils of flooding, wildfires and extreme heat. They should adopt a four-step process for protecting their property, whether it be a home or a business. First, they should prioritize how important...  View Details
      Keywords: Climate Risk; Climate Change; Risk Management; Crisis Management; Insurance
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      Macomber, John D. "Climate Risk Is Growing. Is Your Company Prepared?" Harvard Business Review Digital Articles (October 26, 2022).
      • 2022
      • Working Paper

      Overreaction and Diagnostic Expectations in Macroeconomics

      By: Pedro Bordalo, Nicola Gennaioli and Andrei Shleifer
      We present the case for the centrality of overreaction in expectations for addressing important challenges in finance and macroeconomics. First, non-rational expectations by market participants can be measured and modeled in ways that address some of the key challenges...  View Details
      Keywords: Overreaction; Rational Expectations; Macroeconomics; Market Participation; Social Psychology
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      Bordalo, Pedro, Nicola Gennaioli, and Andrei Shleifer. "Overreaction and Diagnostic Expectations in Macroeconomics." NBER Working Paper Series, No. 30356, August 2022.
      • July 2022
      • Case

      3G Capital

      By: Jo Tango and Alys Ferragamo
      In June 2022, 3G Capital Co-Managing Partners Alex Behring and Daniel Schwartz were in a partners’ meeting. On the agenda were three potential investments. Code named “Alpha,” “Beta,” and “Charlie,” they were the finalists amongst hundreds that the team had screened....  View Details
      Keywords: Investment Decisions; Investment Funds; Investment Portfolio; Decision Choices and Conditions; Private Equity
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      Tango, Jo, and Alys Ferragamo. "3G Capital." Harvard Business School Case 823-010, July 2022.
      • 2022
      • Chapter

      When Fifth Columns Fall: Religious Groups and Loyalty-Signaling in Erdoğan's Turkey

      By: Kristin Fabbe and Efe Murat Balıkçıoğlu
      This chapter investigates the role that fifth-column claims play in authoritarian politics. Specifically, it examines how fifth-column claims against the Gülen Movement have transformed the relationship between the Turkish state and both official (state-sanctioned)...  View Details
      Keywords: Fifth Columns; Gülen Movement; Political Islam; Government and Politics; Religion; Turkey
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      Fabbe, Kristin, and Efe Murat Balıkçıoğlu. "When Fifth Columns Fall: Religious Groups and Loyalty-Signaling in Erdoğan's Turkey." Chap. 10 in Enemies Within: The Global Politics of Fifth Columns, edited by Harris Mylonas and Scott Radnitz, 248–270. New York: Oxford University Press, 2022.
      • 2022
      • Working Paper

      Small Campaign Donors

      By: Laurent Bouton, Julia Cagé, Edgard Dewitte and Vincent Pons
      In this paper, we study the characteristics and behavior of small donors, and compare them to those of large donors. We first build a novel dataset including all the 340 million individual contributions reported to the U.S. Federal Election Commission between 2005 and...  View Details
      Keywords: Campaign Finance; Campaign Contributions; Small Donations; ActBlue; WinRed; TV Advertising; Political Elections; Finance; Demographics; Advertising; Analysis; Analytics and Data Science
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      Bouton, Laurent, Julia Cagé, Edgard Dewitte, and Vincent Pons. "Small Campaign Donors." NBER Working Paper Series, No. 30050, May 2022.
      • 2022
      • Working Paper

      Uniform Rate Setting and the Deposit Channel

      By: Juliane Begenau and Erik Stafford
      Banks do not completely pass-through changes in short-term market rates to depositors. The deposit channel of monetary policy proposes that banks choose the rate of pass-through across their branches based on local deposit market concentration, which consequently...  View Details
      Keywords: Banks and Banking; Financial Markets; Interest Rates; Banking Industry
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      Begenau, Juliane, and Erik Stafford. "Uniform Rate Setting and the Deposit Channel." Working Paper, May 2022.
      • April 6, 2022
      • Article

      In Uncertain Times, Big Companies Need to Take Care of Their Suppliers

      By: Willy C. Shih
      Many large original equipment manufacturers (OEMs) have long been ruthless with their suppliers, demanding extremely low prices and loading them up with risks. Given that the current turmoil buffeting global supply chains is unlikely to end anytime soon, OEMs should...  View Details
      Keywords: Supplier Relationship; Supply Chain Management; Supply Chain; Relationships; Risk and Uncertainty; Auto Industry; Industrial Products Industry; Manufacturing Industry; United States
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      Shih, Willy C. "In Uncertain Times, Big Companies Need to Take Care of Their Suppliers." Harvard Business Review Digital Articles (April 6, 2022).
      • February 2022 (Revised September 2022)
      • Case

      InstaDeep: AI Innovation Born in Africa (A)

      By: Shikhar Ghosh and Esel Çekin
      Karim Beguir and Zohra Slim were the co-founders of InstaDeep, a deep tech startup focusing on artificial intelligence (AI) solutions. Instadeep was one of the few companies globally that were partnering with DeepMind, an AI subsidiary of Google [Alphabet Inc.]....  View Details
      Keywords: AI; Artificial Intelligence; Entrepreneurship; Operations; Business Subsidiaries; Brands and Branding; Innovation and Invention; Growth and Development Strategy; AI and Machine Learning; Technology Industry; Africa
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      Ghosh, Shikhar, and Esel Çekin. "InstaDeep: AI Innovation Born in Africa (A)." Harvard Business School Case 822-104, February 2022. (Revised September 2022.)
      • February 2022 (Revised July 2022)
      • Supplement

      InstaDeep: AI Innovation Born in Africa (B)

      By: Shikhar Ghosh and Esel Çekin
      Karim Beguir and Zohra Slim were the co-founders of InstaDeep, a deep tech startup focusing on artificial intelligence (AI) solutions. Instadeep was one of the few companies globally that were partnering with DeepMind, an AI subsidiary of Google [Alphabet Inc.]....  View Details
      Keywords: AI; Artificial Intelligence; Entrepreneurship; Operations; Business Subsidiaries; Brands and Branding; Innovation and Invention; Growth and Development Strategy; AI and Machine Learning; Technology Industry; Africa
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      Ghosh, Shikhar, and Esel Çekin. "InstaDeep: AI Innovation Born in Africa (B)." Harvard Business School Supplement 822-105, February 2022. (Revised July 2022.)
      • 2022
      • Working Paper

      Calling All Issuers: The Market for Debt Monitoring

      By: Huaizhi Chen, Lauren Cohen and Weiling Liu
      A substantial fraction of local governments refinance their long-term debt with significant delays—resulting in sizable losses. Using data from 2001 to 2018, we estimate that U.S. municipals lost over $31 billion from this delayed refinancing, whereas the entire U.S....  View Details
      Keywords: Debt Monitoring; Financial Institutions; Governing Rules, Regulations, and Reforms; Government Administration; Financing and Loans
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      Chen, Huaizhi, Lauren Cohen, and Weiling Liu. "Calling All Issuers: The Market for Debt Monitoring." NBER Working Paper Series, No. 29790, February 2022.
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