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Publications

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    • All HBS Web  (349)
      • Faculty Publications  (52)

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      • 2023
      • Working Paper

      Design-Based Confidence Sequences: A General Approach to Risk Mitigation in Online Experimentation

      By: Dae Woong Ham, Michael Lindon, Martin Tingley and Iavor Bojinov
      Randomized experiments have become the standard method for companies to evaluate the performance of new products or services. In addition to augmenting managers’ decision-making, experimentation mitigates risk by limiting the proportion of customers exposed to...  View Details
      Keywords: Performance Evaluation; Research and Development; Analytics and Data Science; Consumer Behavior
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      Ham, Dae Woong, Michael Lindon, Martin Tingley, and Iavor Bojinov. "Design-Based Confidence Sequences: A General Approach to Risk Mitigation in Online Experimentation." Harvard Business School Working Paper, No. 23-070, May 2023.
      • June 2023
      • Article

      National Customer Orientation: An Empirical Test across 112 Countries

      By: Ofer Mintz, Imran S. Currim and Rohit Deshpandé
      Customer orientation is a central tenet of marketing. However, less is known about how customer orientation varies across countries and time. Mintz, Currim, and Deshpandé (Eur. J. Mark., 56: 1014–1041, 2022) propose a country-level construct, national customer...  View Details
      Keywords: Global Range; Customer Focus and Relationships
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      Mintz, Ofer, Imran S. Currim, and Rohit Deshpandé. "National Customer Orientation: An Empirical Test across 112 Countries." Marketing Letters 34, no. 2 (June 2023): 189–204.
      • May 2023
      • Article

      Self-Preferencing at Amazon: Evidence from Search Rankings

      By: Chiara Farronato, Andrey Fradkin and Alexander MacKay
      We study whether Amazon engages in self-preferencing on its marketplace by favoring its own brands (e.g., Amazon Basics) in search. To address this question, we collect new micro-level consumer search data using a custom browser extension installed by a panel of study...  View Details
      Keywords: Consumer Behavior; E-commerce; Product Positioning; Brands and Branding
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      Farronato, Chiara, Andrey Fradkin, and Alexander MacKay. "Self-Preferencing at Amazon: Evidence from Search Rankings." AEA Papers and Proceedings 113 (May 2023): 239–243.
      • October 2022
      • Article

      A Structural Model of Organizational Buying for Business-to-Business Markets: Innovation Adoption with Share-of-Wallet Contracts

      By: Navid Mojir and K. Sudhir
      The paper develops the first structural model of organizational buying to study innovation diffusion in a B2B market. Our model is particularly applicable for routinized exchange relationships, whereby centralized buyers periodically evaluate and choose contracts,...  View Details
      Keywords: Organizational Buying Behavior; Healthcare Marketing; B2B Markets; B2B Innovation; New Product Diffusion; New Product Adoption; Organizations; Acquisition; Behavior; Health Care and Treatment; Marketing; Innovation and Invention
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      Mojir, Navid, and K. Sudhir. "A Structural Model of Organizational Buying for Business-to-Business Markets: Innovation Adoption with Share-of-Wallet Contracts." Journal of Marketing Research (JMR) 59, no. 5 (October 2022): 883–907.
      • February 2022
      • Article

      Taxation and Innovation in the 20th Century

      By: Ufuk Akcigit, John Grigsby, Tom Nicholas and Stefanie Stantcheva
      This paper studies the effect of corporate and personal taxes on innovation in the United States over the twentieth century. We build a panel of the universe of inventors who patent since 1920, and a historical state-level corporate tax database with corporate tax...  View Details
      Keywords: Innovation; Income Taxes; Corporate Taxation; Firms; Inventors; State Taxation; Business Taxation; R&D Tax Credits; Taxation; Innovation and Invention; History; United States
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      Akcigit, Ufuk, John Grigsby, Tom Nicholas, and Stefanie Stantcheva. "Taxation and Innovation in the 20th Century." Quarterly Journal of Economics 137, no. 1 (February 2022): 329–385.
      • November 2021
      • Article

      Panel Experiments and Dynamic Causal Effects: A Finite Population Perspective

      By: Iavor Bojinov, Ashesh Rambachan and Neil Shephard
      In panel experiments, we randomly assign units to different interventions, measuring their outcomes, and repeating the procedure in several periods. Using the potential outcomes framework, we define finite population dynamic causal effects that capture the relative...  View Details
      Keywords: Panel Data; Dynamic Causal Effects; Potential Outcomes; Finite Population; Nonparametric; Mathematical Methods
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      Bojinov, Iavor, Ashesh Rambachan, and Neil Shephard. "Panel Experiments and Dynamic Causal Effects: A Finite Population Perspective." Quantitative Economics 12, no. 4 (November 2021): 1171–1196.
      • 2021
      • Working Paper

      Do Policies to Increase Access to Treatment for Opioid Use Disorder Work?

      By: Eric Barrette, Leemore S. Dafny and Karen Shen
      As of 2016 there were an estimated 2.1 million Americans suffering from opioid use disorder (OUD). To date, most policy interventions have focused on curbing opioid prescriptions and extending insurance coverage to include substance use disorder. However, relatively...  View Details
      Keywords: Opioid Treatment; Medication-assisted Treatment; Substance Use Disorder; Private Insurance; Health Care and Treatment; Health Disorders; Insurance; United States
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      Barrette, Eric, Leemore S. Dafny, and Karen Shen. "Do Policies to Increase Access to Treatment for Opioid Use Disorder Work?" NBER Working Paper Series, No. 29001, July 2021.
      • July 2021
      • Article

      Medical Debt in the U.S., 2009–2020

      By: Ray Kluender, Neale Mahoney, Francis Wong and Wesley Yin
      Importance: Medical debt is an increasing concern in the US, yet there is limited understanding of the amount and distribution of medical debt, and its association with health care policies.

      Objective: To measure the amount of medical debt nationally and by...  View Details
      Keywords: Debt; Borrowing and Debt; Health Care and Treatment; United States
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      Kluender, Ray, Neale Mahoney, Francis Wong, and Wesley Yin. "Medical Debt in the U.S., 2009–2020." JAMA, the Journal of the American Medical Association 326, no. 3 (July 2021): 250–256.
      • Article

      Value of New Performance Information in Healthcare: Evidence from Japan

      By: Susanna Gallani, Takehisa Kajiwara and Ranjani Krishnan
      Mandatory measurement and disclosure of outcome measures are commonly used policy tools in healthcare. The effectiveness of such disclosures relies on the extent to which the new information produced by the mandatory system is internalized by the healthcare...  View Details
      Keywords: Value Of Information; Feedback; Patient Satisfaction; Healthcare; Health Care and Treatment; Satisfaction; Information; Measurement and Metrics; Performance Improvement
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      Gallani, Susanna, Takehisa Kajiwara, and Ranjani Krishnan. "Value of New Performance Information in Healthcare: Evidence from Japan." International Journal of Health Economics and Management 20, no. 4 (December 2020): 319–357.
      • November 3, 2020
      • Article

      Gender Differences in COVID-19 Attitudes and Behavior: Panel Evidence from Eight Countries

      By: Vincenzo Galasso, Vincent Pons, Paola Profeta, Michael Becher, Sylvain Brouard and Martial Foucault
      Using original data from two waves of a survey conducted in March and April 2020 in eight OECD countries (N = 21,649), we show that women are more likely to see COVID-19 as a very serious health problem, to agree with restraining public policy measures adopted in...  View Details
      Keywords: COVID-19; Health Pandemics; Attitudes; Behavior; Gender; Policy; Governance Compliance
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      Galasso, Vincenzo, Vincent Pons, Paola Profeta, Michael Becher, Sylvain Brouard, and Martial Foucault. "Gender Differences in COVID-19 Attitudes and Behavior: Panel Evidence from Eight Countries." Proceedings of the National Academy of Sciences 117, no. 44 (November 3, 2020).
      • Article

      The Importance of Being Causal

      By: Iavor I Bojinov, Albert Chen and Min Liu
      Causal inference is the study of how actions, interventions, or treatments affect outcomes of interest. The methods that have received the lion’s share of attention in the data science literature for establishing causation are variations of randomized experiments....  View Details
      Keywords: Causal Inference; Observational Studies; Cross-sectional Studies; Panel Studies; Interrupted Time-series; Instrumental Variables
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      Bojinov, Iavor I., Albert Chen, and Min Liu. "The Importance of Being Causal." Harvard Data Science Review 2.3 (July 30, 2020).
      • March 2020
      • Article

      Organizing Knowledge Production Teams Within Firms for Innovation

      By: Vikas A. Aggarwal, David H. Hsu and Andy Wu
      How should firms organize their pool of inventive human capital for firm-level innovation? While access to diverse knowledge may aid knowledge recombination, which can facilitate innovation, prior literature has focused primarily on one way of achieving that: diversity...  View Details
      Keywords: Knowledge Recombination; Organization Design; Team Boundary; Innovation; Knowledge Sharing; Diversity; Innovation and Invention; Groups and Teams; Human Capital; Organizational Design
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      Aggarwal, Vikas A., David H. Hsu, and Andy Wu. "Organizing Knowledge Production Teams Within Firms for Innovation." Art. 1. Strategy Science 5, no. 1 (March 2020): 1–16. (Lead article.)
      • December 2019
      • Article

      Invest in Information or Wing It? A Model of Dynamic Pricing with Seller Learning

      By: Guofang Huang, Hong Luo and Jing Xia
      Pricing idiosyncratic products is often challenging because the seller, ex ante, lacks information about the demand for individual items. This paper develops a model of dynamic pricing for idiosyncratic products that features the optimal stopping structure and a seller...  View Details
      Keywords: Dynamic Pricing; Idiosyncratic Products; Item-specific Demand; Demand Uncertainty; Active Seller Learning; The Value Of Information; Price; Information; Value; Learning
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      Huang, Guofang, Hong Luo, and Jing Xia. "Invest in Information or Wing It? A Model of Dynamic Pricing with Seller Learning." Management Science 65, no. 12 (December 2019): 5556–5583.
      • March 2019
      • Article

      A Structural Analysis of the Role of Superstars in Crowdsourcing Contests

      By: Shunyuan Zhang, Param Singh and Anindya Ghose
      We investigate the long-term impact of competing against superstars in crowdsourcing contests. Using a unique 50-month longitudinal panel data set on 1677 software design crowdsourcing contests, we illustrate a learning effect where participants are able to improve...  View Details
      Keywords: Crowdsourcing Contests; Superstar Effect; Bayesian Learning; Utility; Economics Of Information System; Dynamic Structural Model; Dynamic Programming; Markov Chain; Monte Carlo; Learning; Competition; Performance Improvement
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      Zhang, Shunyuan, Param Singh, and Anindya Ghose. "A Structural Analysis of the Role of Superstars in Crowdsourcing Contests." Information Systems Research 30, no. 1 (March 2019): 15–33.
      • July–August 2018
      • Article

      Learning by Contributing: Gaining Competitive Advantage Through Contribution to Crowdsourced Public Goods

      By: Frank Nagle
      As the economy becomes more information based, firms are increasingly using crowdsourced public goods as inputs for innovation and production. Counterintuitively, some firms pay their employees to contribute to the creation of these goods, which can be used freely by...  View Details
      Keywords: Open Source Distribution; Applications and Software; Competitive Strategy; Learning; Competitive Advantage
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      Nagle, Frank. "Learning by Contributing: Gaining Competitive Advantage Through Contribution to Crowdsourced Public Goods." Organization Science 29, no. 4 (July–August 2018): 569–587.
      • November–December 2016
      • Article

      The Impact of Patent Wars on Firm Strategy: Evidence from the Global Smartphone Industry

      By: Yongwook Paik and Feng Zhu
      Strategy scholars have documented in various empirical settings that firms seek and leverage stronger institutions to mitigate hazards and gain competitive advantage. In this paper, we argue that such “institution-seeking” behavior may not be confined to the pursuit of...  View Details
      Keywords: Patent Wars; Patent Litigation; Intellectual Property (IP) Enforcement; Institutions; Patent Thicket; Smartphone; Patents; Corporate Strategy; Mobile Technology
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      Paik, Yongwook, and Feng Zhu. "The Impact of Patent Wars on Firm Strategy: Evidence from the Global Smartphone Industry." Organization Science 27, no. 6 (November–December 2016): 1397–1416.
      • 2017
      • Working Paper

      Self-Employment Dynamics and the Returns to Entrepreneurship

      By: Eleanor W. Dillon and Christopher T. Stanton
      Small business owners and others in self-employment have the option to transition to paid work. If there is initial uncertainty about entrepreneurial earnings, this option increases the expected lifetime value of self-employment relative to pay in a single year. This...  View Details
      Keywords: Self-employed; Small Business; Business Earnings; Entrepreneurship; Ownership; Compensation and Benefits
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      Dillon, Eleanor W., and Christopher T. Stanton. "Self-Employment Dynamics and the Returns to Entrepreneurship." Harvard Business School Working Paper, No. 17-022, September 2016. (Revised March 2018.)
      • 2017
      • Working Paper

      Management as a Technology?

      By: Nicholas Bloom, Raffaella Sadun and John Van Reenen
      Are some management practices akin to a technology that can explain firm and national productivity, or do they simply reflect contingent management styles? We collect data on core management practices from over 11,000 firms in 34 countries. We find large cross-country...  View Details
      Keywords: Management Practices; Productivity; Competition; Management Practices and Processes; Performance Productivity
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      Bloom, Nicholas, Raffaella Sadun, and John Van Reenen. "Management as a Technology?" Harvard Business School Working Paper, No. 16-133, June 2016. (Revised October 2017.)
      • Article

      Wisdom or Madness? Comparing Crowds with Expert Evaluation in Funding the Arts

      By: Ethan Mollick and Ramana Nanda
      In fields as diverse as technology entrepreneurship and the arts, crowds of interested stakeholders are increasingly responsible for deciding which innovations to fund, a privilege that was previously reserved for a few experts, such as venture capitalists and...  View Details
      Keywords: Crowdfunding; Arts; Decision Choices and Conditions; Entrepreneurship; Investment; Fine Arts Industry; Technology Industry
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      Mollick, Ethan, and Ramana Nanda. "Wisdom or Madness? Comparing Crowds with Expert Evaluation in Funding the Arts." Management Science 62, no. 6 (June 2016): 1533–1553.
      • 2016
      • Working Paper

      The Impact of Patent Wars on Firm Strategy: Evidence from the Global Smartphone Market

      By: Feng Zhu
      Strategy scholars have documented in various empirical settings that firms seek and leverage stronger institutions to mitigate hazards and gain competitive advantage. In this paper, we argue that such “institution-seeking” behavior may not be confined to the pursuit of...  View Details
      Keywords: Patent Wars; Patent Litigation; Intellectual Property (IP) Enforcement; Institutions; Smartphone; Patent Thicket; Digital Platforms; Patents; Lawsuits and Litigation; Globalized Markets and Industries; Business Strategy; Telecommunications Industry
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      Paik, Yongwook, and Feng Zhu. "The Impact of Patent Wars on Firm Strategy: Evidence from the Global Smartphone Market." Harvard Business School Working Paper, No. 14-015, August 2013. (Revised March 2016.)
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