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Publications

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      • December 7, 2022
      • Article

      Why Decentralized Crypto Platforms Are Weathering the Crash

      By: Shai Bernstein and Scott Duke Kominers
      In the past year, crypto markets dropped from $2.9 trillion in value to around $800 billion. In the wake of the collapse, crypto lenders and exchanges have been accused of fraud and other wrongdoing. What went wrong? One factor is competition. In theory, competition...  View Details
      Keywords: Crypto Economy; Cryptocurrency; Financial Complexity; Financial Crisis; Decentralization; Decentralized Markets; Decentralized Autonomous Organizations; Finance; Market Design; Financial Services Industry
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      Bernstein, Shai, and Scott Duke Kominers. "Why Decentralized Crypto Platforms Are Weathering the Crash." Harvard Business Review Digital Articles (December 7, 2022).
      • November 2022 (Revised December 2022)
      • Case

      Ava Labs: Navigating the Next Blockchain

      By: Marco Di Maggio and Wenyao Sha
      John Wu, President of Ava Labs, the primary developer of the Avalanche blockchain, and Emin Gün Sirer, the software company’s Founder and CEO, team up to develop a lending and borrowing protocol that would jumpstart the Decentralized finance (DeFi) economy on...  View Details
      Keywords: Blockchain; Decentralized Finance; Alternative Assets; Financial Instruments; Assets; Decisions; Financing and Loans; Technology Industry; Financial Services Industry
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      Di Maggio, Marco, and Wenyao Sha. "Ava Labs: Navigating the Next Blockchain." Harvard Business School Case 223-027, November 2022. (Revised December 2022.)
      • July 28, 2022
      • Article

      DAO Governance Attacks, and How to Avoid Them

      By: Pranav Garimidi, Scott Duke Kominers and Tim Roughgarden
      Many web3 projects embrace permissionless voting using a fungible and tradable native token. Permissionless voting can offer many benefits, from lowering barriers to entry to increasing competition. Token holders can use their tokens to vote on a range of issues—from...  View Details
      Keywords: Crypto Economy; Cryptocurrency; Governance; Voting; Decentralized Autonomous Organizations; Organizational Structure; Digital Platforms
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      Garimidi, Pranav, Scott Duke Kominers, and Tim Roughgarden. "DAO Governance Attacks, and How to Avoid Them." a16zcrypto.com (July 28, 2022).
      • 2022
      • Working Paper

      Social Protection and Social Distancing During the Pandemic: Mobile Money Transfers in Ghana

      By: Dean Karlan, Matt Lowe, Robert Osei, Isaac Osei-Akoto, Benjamin N. Roth and Christopher Udry
      We study the impact of mobile money transfers to a representative sample of low-income Ghanaians during the COVID-19 pandemic. The announcement of the upcoming transfers affects neither consumption, well-being, nor social distancing. Once disbursed,...  View Details
      Keywords: Social Distancing; Social Welfare; Economic Relief; Health Pandemics; Poverty
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      Karlan, Dean, Matt Lowe, Robert Osei, Isaac Osei-Akoto, Benjamin N. Roth, and Christopher Udry. "Social Protection and Social Distancing During the Pandemic: Mobile Money Transfers in Ghana." Harvard Business School Working Paper, No. 23-010, July 2022.
      • March 2022 (Revised November 2022)
      • Case

      When Should CEOs Speak Out Publicly? The 2021 Georgia Voting Law

      By: William W. George, Hubert Joly and Amram Migdal
      This case describes the March 2021 passage of a voting and elections law in the U.S. state of Georgia and reactions by corporations and corporate leaders to the law. Included are a brief history of voting rights in the United States and Georgia and an overview of the...  View Details
      Keywords: Voting Rights; CEO Activism; Communication; Communication Intention and Meaning; Communication Strategy; Forms of Communication; Announcements; Spoken Communication; Decision Making; Judgments; Voting; Demographics; Nationality; Race; Geography; Geographic Location; Geopolitical Units; Country; Government and Politics; Government Administration; Government Legislation; Political Elections; History; Law; Laws and Statutes; Rights; Leadership; Leadership Style; Management; Management Skills; Relationships; Business and Community Relations; Business and Government Relations; Business and Stakeholder Relations; Social Psychology; Status and Position; Society; Civil Society or Community; Culture; Public Opinion; Social Issues; Societal Protocols; United States; Georgia (state, US)
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      George, William W., Hubert Joly, and Amram Migdal. "When Should CEOs Speak Out Publicly? The 2021 Georgia Voting Law." Harvard Business School Case 322-015, March 2022. (Revised November 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.
      • 2022
      • Article

      Improving Efficiency and Reducing Costs of MRI-Guided Prostate Brachytherapy Using Time-Driven Activity-Based Costing

      By: Nikhil G. Thaker, Rajat J. Kudchadker, James R. Incalcaterra, Tharakeswara K. Bathala, Robert S. Kaplan, Ankit Agarwal, Deborah A. Kuban, Benjamin D. Frank, Prajnan Das, Thomas W. Feeley and Steven J. Frank
      Integrated quality improvement (QI) and cost reduction strategies can help increase value in cancer care. We applied standard QI and TDABC methods to improve workflow efficiency and reduce costs for MRI-guided prostate brachytherapy. We constructed process maps,...  View Details
      Keywords: Brachytherapy; Quality Improvement; Prostate; Time-Driven Activity-Based Costing; Cost Accounting; Health Care and Treatment; Performance Efficiency; Health Industry
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      Thaker, Nikhil G., Rajat J. Kudchadker, James R. Incalcaterra, Tharakeswara K. Bathala, Robert S. Kaplan, Ankit Agarwal, Deborah A. Kuban, Benjamin D. Frank, Prajnan Das, Thomas W. Feeley, and Steven J. Frank. "Improving Efficiency and Reducing Costs of MRI-Guided Prostate Brachytherapy Using Time-Driven Activity-Based Costing." Brachytherapy 21, no. 1 (2022): 49–54.
      • September 2021 (Revised November 2022)
      • Case

      Community Solutions

      By: Brian Trelstad and Tom Quinn
      Community Solutions was an anti-homelessness nonprofit founded in 2011 after protagonist Rosanne Haggerty grew frustrated with the limited impact of traditional housing and outreach strategies. It set an ambitious goal, reached in some partner communities, of ending...  View Details
      Keywords: Change; Change Management; Disruption; Transformation; Communication; Communication Strategy; Decision Making; Cost vs Benefits; Decision Choices and Conditions; Decisions; Forecasting and Prediction; Social Entrepreneurship; Ethics; Values and Beliefs; Capital Budgeting; Capital Markets; Country; Government Administration; Government Legislation; Housing; Disruptive Innovation; Innovation and Invention; Innovation Strategy; Knowledge Sharing; Leading Change; Resource Allocation; Mission and Purpose; Performance Evaluation; Performance Improvement; Philanthropy and Charitable Giving; Opportunities; Social Enterprise; Nonprofit Organizations; Human Needs; Public Opinion; Social Issues; Societal Protocols; Poverty; Welfare; Well-being; System; Equality and Inequality; Consulting Industry; Real Estate Industry; United States; New York (city, NY); Florida; Texas
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      Trelstad, Brian, and Tom Quinn. "Community Solutions." Harvard Business School Case 322-021, September 2021. (Revised November 2022.)
      • 2021
      • Working Paper

      Going to Extremes: Crucibles, Multiple Sensitive Periods, and Career Progression

      By: Prithwiraj Choudhury, Sunasir Dutta, Hise O. Gibson and Eric Lin
      We study the effects of crucible experiences along multiple sensitive periods on career progression. While prior literature has hinted that individuals can be imprinted during multiple sensitive periods, not just during the early career, there has been scant attention...  View Details
      Keywords: Jobs and Positions; Personal Development and Career; Management Skills; Human Capital
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      Choudhury, Prithwiraj, Sunasir Dutta, Hise O. Gibson, and Eric Lin. "Going to Extremes: Crucibles, Multiple Sensitive Periods, and Career Progression." Harvard Business School Working Paper, No. 22-006, August 2021.
      • Article

      Use of Connected Digital Products in Clinical Research Following the COVID-19 Pandemic: A Comprehensive Analysis of Clinical Trials

      By: Caroline Marra, William J. Gordon and Ariel Dora Stern
      Objectives: In an effort to mitigate COVID-19 related challenges for clinical research, the U.S. Food and Drug Administration (FDA) issued new guidance for the conduct of ‘virtual’ clinical trials in late March 2020. This study documents trends in the use of...  View Details
      Keywords: Connected Digital Products; Telehealth; Remote Monitoring; Health Testing and Trials; Research; Governing Rules, Regulations, and Reforms; Information Technology
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      Marra, Caroline, William J. Gordon, and Ariel Dora Stern. "Use of Connected Digital Products in Clinical Research Following the COVID-19 Pandemic: A Comprehensive Analysis of Clinical Trials." BMJ Open 11, no. 6 (2021).
      • Article

      'Many Others Are Doing It, So Why Shouldn't I?': How Being in Larger Competitions Leads to More Cheating

      By: Celia Chui, Maryam Kouchaki and Francesca Gino
      In many spheres of life, from applying for a job to participating in an athletic contest to vying for a date, we face competition. Does the size of the competition pool affect our propensity to behave unethically in our pursuit of the prize? We propose that it does....  View Details
      Keywords: Unethical Behavior; Cheating; Competitors; Social Norms; Ethics; Behavior; Competition; Societal Protocols
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      Chui, Celia, Maryam Kouchaki, and Francesca Gino. "'Many Others Are Doing It, So Why Shouldn't I?': How Being in Larger Competitions Leads to More Cheating." Organizational Behavior and Human Decision Processes 164 (May 2021): 102–115.
      • December 2019
      • Article

      When Do We Punish People Who Don't?

      By: Justin W. Martin, Jillian J. Jordan, David G. Rand and Fiery Cushman
      People often punish norm violations. In what cases is such punishment viewed as normative—a behavior that we “should”or even“must”engage in? We approach this question by asking when people who fail to punish a norm violator are, themselves, punished. (For instance, a...  View Details
      Keywords: Punishment; Norms; Cooperation; Societal Protocols; Adaptation
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      Martin, Justin W., Jillian J. Jordan, David G. Rand, and Fiery Cushman. "When Do We Punish People Who Don't?" Cognition 193 (December 2019).
      • Article

      The Role of Interactivity in Local Differential Privacy

      By: Matthew Joseph, Jieming Mao, Seth Neel and Aaron Leon Roth
      We study the power of interactivity in local differential privacy. First, we focus on the difference between fully interactive and sequentially interactive protocols. Sequentially interactive protocols may query users adaptively in sequence, but they cannot return to...  View Details
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      Joseph, Matthew, Jieming Mao, Seth Neel, and Aaron Leon Roth. "The Role of Interactivity in Local Differential Privacy." Proceedings of the IEEE Annual Symposium on Foundations of Computer Science (FOCS) 60th (2019).
      • 2019
      • Working Paper

      On Her Own Account: How Strengthening Women's Financial Control Affects Labor Supply and Gender Norms

      By: Natalia Rigol, Erica Field, Rohini Pande, Simone Schaner and Charity Troyer-Moore
      Can greater control over earned income incentivize women to work and influence gender norms? In collaboration with Indian government partners, we provided rural women with individual bank accounts and randomly varied whether their wages from a public workfare program...  View Details
      Keywords: Gender Norms; Economics; Gender; Employment; Income; Societal Protocols; India
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      Rigol, Natalia, Erica Field, Rohini Pande, Simone Schaner, and Charity Troyer-Moore. "On Her Own Account: How Strengthening Women's Financial Control Affects Labor Supply and Gender Norms." NBER Working Paper Series, No. 26294, September 2019.
      • 2021
      • Working Paper

      Mammography: Case Histories of Significant Medical Advances

      By: Amar Bhidé, Srikant M. Datar and Katherine Stebbins
      We describe how the development of x-ray-based techniques and equipment (“mammography”) lead to widespread screening for breast cancer and enabled “minimally invasive” biopsies of breast tumors. Specifically, we chronicle how: 1) the protocols and equipment, developed...  View Details
      Keywords: Health Care and Treatment; Technological Innovation; Innovation Strategy; Technology Adoption; Collaborative Innovation and Invention; Innovation and Invention; Governing Rules, Regulations, and Reforms
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      Bhidé, Amar, Srikant M. Datar, and Katherine Stebbins. "Mammography: Case Histories of Significant Medical Advances." Harvard Business School Working Paper, No. 20-002, July 2019. (Revised May 2021.)
      • June 4, 2019
      • Article

      Finding the Sweet Spot: Why Industry, Nonprofits Should (or Can) Collaborate on Master Protocols

      By: Richard G. Hamermesh, Kathy Giusti and Bradley Smith
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      Hamermesh, Richard G., Kathy Giusti, and Bradley Smith. "Finding the Sweet Spot: Why Industry, Nonprofits Should (or Can) Collaborate on Master Protocols." Clinical Research News Online (June 4, 2019).
      • February 2019
      • Article

      Pettiness in Social Exchange

      By: Tami Kim, Ting Zhang and Michael I. Norton
      We identify and document a novel construct—pettiness, or intentional attentiveness to trivial details—and examine its (negative) implications in interpersonal relationships and social exchange. Seven studies show that pettiness manifests across different types of...  View Details
      Keywords: Relationships; Personal Characteristics; Perception; Societal Protocols
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      Kim, Tami, Ting Zhang, and Michael I. Norton. "Pettiness in Social Exchange." Journal of Experimental Psychology: General 148, no. 2 (February 2019): 361–373.
      • November 2018 (Revised June 2022)
      • Teaching Note

      AirFox (A): Embracing the Blockchain and an ICO

      By: Jeffrey J. Bussgang and Nathaniel Schwalb
      Teaching Note for HBS No. 818-097. In summer 2017, Victor Santos, CEO of AirFox, considered whether to pivot his startup towards a new product built with blockchain—a quickly growing technology at the time. AirFox was an early stage startup that sold...  View Details
      Keywords: Blockchain; Cryptocurrency; Initial Coin Offering; ICO; Business Startups; Finance; Currency; Strategy; Decision Making; United States
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      Bussgang, Jeffrey J., and Nathaniel Schwalb. "AirFox (A): Embracing the Blockchain and an ICO." Harvard Business School Teaching Note 819-065, November 2018. (Revised June 2022.)
      • November 2018 (Revised December 2020)
      • Technical Note

      Initial Coin Offerings in 2018

      By: Jeffrey J. Bussgang, Ramana Nanda, Robert F. White and Nathaniel Schwalb
      In 2018, Initial Coin Offerings (ICOs) were an emerging fundraising method for blockchain-based projects. As the ecosystem grew, there were many open questions on regulation, pricing, and even which projects were a good fit for blockchain. However, there was already...  View Details
      Keywords: Blockchain; Initial Coin Offerings; ICO; Decentralization; Networks; Protocols; Entrepreneurship; Project Finance
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      Bussgang, Jeffrey J., Ramana Nanda, Robert F. White, and Nathaniel Schwalb. "Initial Coin Offerings in 2018." Harvard Business School Technical Note 819-057, November 2018. (Revised December 2020.)
      • 2020
      • Working Paper

      The Salary Taboo: Privacy Norms and the Diffusion of Information

      By: Zoë B. Cullen and Ricardo Perez-Truglia
      The limited diffusion of salary information has implications for labor markets, such as wage discrimination policies and collective bargaining. Access to salary information is believed to be limited and unequal, but there is little direct evidence on the sources of...  View Details
      Keywords: Search Costs; Privacy; Norms; Compensation; Financial Industry; Field Experiment; Compensation and Benefits; Knowledge Dissemination; Societal Protocols
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      Cullen, Zoë B., and Ricardo Perez-Truglia. "The Salary Taboo: Privacy Norms and the Diffusion of Information." NBER Working Paper Series, No. 25145, October 2018. (Harvard Business School Working Paper, No. 20-057, November 2019.)
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