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Publications

Publications

Filter Results: (35) Arrow Down
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  • All HBS Web  (35)
    • Research  (34)
  • Faculty Publications  (14)

Show Results For

  • All HBS Web  (35)
    • Research  (34)
  • Faculty Publications  (14)
Page 1 of 35 Results →
  • Article

How Much Should We Trust Staggered Difference-In-Differences Estimates?

By: Andrew C. Baker, David F. Larcker and Charles C.Y. Wang
We explain when and how staggered difference-in-differences regression estimators, commonly applied to assess the impact of policy changes, are biased. These biases are likely to be relevant for a large portion of research settings in finance, accounting, and law that... View Details
Keywords: Difference In Differences; Staggered Difference-in-differences Designs; Generalized Difference-in-differences; Dynamic Treatment Effects; Mathematical Methods
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Baker, Andrew C., David F. Larcker, and Charles C.Y. Wang. "How Much Should We Trust Staggered Difference-In-Differences Estimates?" Journal of Financial Economics 144, no. 2 (May 2022): 370–395. (Editor's Choice, May 2022; Jensen Prize, First Place, June 2023.)
  • 2021
  • Working Paper

How Much Should We Trust Staggered Difference-In-Differences Estimates?

By: Andrew C. Baker, David F. Larcker and Charles C.Y. Wang
Difference-in-differences analysis with staggered treatment timing is frequently used to assess the impact of policy changes on corporate outcomes in academic research. However, recent advances in econometric theory show that such designs are likely to be biased in the... View Details
Keywords: Difference In Differences; Staggered Difference-in-differences Designs; Generalized Difference-in-differences; Dynamic Treatment Effects; Mathematical Methods
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Baker, Andrew C., David F. Larcker, and Charles C.Y. Wang. "How Much Should We Trust Staggered Difference-In-Differences Estimates?" European Corporate Governance Institute Finance Working Paper, No. 736/2021, February 2021. (Harvard Business School Working Paper, No. 21-112, April 2021.)
  • 2023
  • Working Paper

Market Exclusivity and Innovation: Evidence From Antibiotics

By: Edward Kong and Olivia Zhao
The US incentivizes drug innovation via patents as well as market exclusivity periods awarded by the US Food and Drug Administration. We estimate the causal effects of extending market exclusivity for an important drug class: antibiotics. Using a... View Details
Keywords: Health Testing and Trials; Innovation and Invention; Motivation and Incentives; Government Administration; Government Legislation; Pharmaceutical Industry; United States
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Kong, Edward, and Olivia Zhao. "Market Exclusivity and Innovation: Evidence From Antibiotics." Working Paper, December 2023.
  • 2023
  • Working Paper

Segmented Going-Public Markets and the Demand for SPACs

By: Angela Ma, Miles Zheng and Jessica Bai
We provide a regulatory-arbitrage-based explanation for the origin and proliferation of the Special Purpose Acquisition Company (SPAC). SPAC sponsors act as non-bank intermediaries, and the SPAC market structure appeals to yield-seeking investors and riskier,... View Details
Keywords: Special Purpose Acquisition Companies; Non-bank Intermediaries; Regulatory Arbitrage; Adverse Selection; Initial Public Offering
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Ma, Angela, Miles Zheng, and Jessica Bai. "Segmented Going-Public Markets and the Demand for SPACs." Working Paper, 2023.
  • December 2023
  • Article

Brokerage Relationships and Analyst Forecasts: Evidence from the Protocol for Broker Recruiting

By: Braiden Coleman, Michael Drake, Joseph Pacelli and Brady Twedt
In this study, we offer novel evidence on how the nature of brokerage-client relationships can influence the quality of equity research. We exploit a unique setting provided by the Protocol for Broker Recruiting to examine whether relaxed broker non-compete agreement... View Details
Keywords: Brokers; Analysts; Forecasts; Bias; Protocol; Investment; Research; Forecasting and Prediction
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Coleman, Braiden, Michael Drake, Joseph Pacelli, and Brady Twedt. "Brokerage Relationships and Analyst Forecasts: Evidence from the Protocol for Broker Recruiting." Review of Accounting Studies 28, no. 4 (December 2023): 2075–2103.
  • January 2022
  • Article

Why is Corporate Virtue in the Eye of The Beholder? The Case of ESG Ratings

By: Dane Christensen, George Serafeim and Anywhere Sikochi
Despite the rising use of environmental, social, and governance (ESG) ratings, there is substantial disagreement across rating agencies regarding what rating to give to individual firms. As what drives this disagreement is unclear, we examine whether a firm’s ESG... View Details
Keywords: ESG Ratings; Rating Agency Disagreement; ESG Disclosure; Corporate Social Responsibility; Sustainability; Corporate Social Responsibility and Impact; Environmental Sustainability; Corporate Disclosure
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Christensen, Dane, George Serafeim, and Anywhere Sikochi. "Why Is Corporate Virtue in the Eye of the Beholder? The Case of ESG Ratings." Accounting Review 97, no. 1 (January 2022): 147–175.
  • 2024
  • Working Paper

Social Movements and Public Opinion in the United States

By: Amory Gethin and Vincent Pons
Recent social movements stand out by their spontaneous nature and lack of stable leadership, raising doubts on their ability to generate political change. This article provides systematic evidence on the effects of protests on public opinion and political attitudes.... View Details
Keywords: Attitudes; Social Issues; Voting; Public Opinion; Social Media
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Gethin, Amory, and Vincent Pons. "Social Movements and Public Opinion in the United States." NBER Working Paper Series, No. 32342, April 2024.
  • August, 2022
  • Article

Changing Ingroup Boundaries: The Effect of Immigration on Race Relations in the United States

By: Vasiliki Fouka and Marco Tabellini
How do social group boundaries evolve? Does the appearance of a new outgroup change the ingroup's perceptions of other outgroups? We introduce a conceptual framework of context-dependent categorization, in which exposure to one minority leads to recategorization of... View Details
Keywords: In-group-out-group Relations; Ingroup-outgroup Relations; Immigration; Race; Relationships; United States
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Fouka, Vasiliki, and Marco Tabellini. "Changing Ingroup Boundaries: The Effect of Immigration on Race Relations in the United States." American Political Science Review 116, no. 3 (August, 2022): 968–984. (Featured in the Boston Globe, Washington Post, and HBS Working Knowledge.)
  • 2021
  • Working Paper

Changing Ingroup Boundaries: The Effect of Immigration on Race Relations in the U.S.

By: Vasiliki Fouka and Marco Tabellini
How do social group boundaries evolve? Does the appearance of a new outgroup change the ingroup's perceptions of other outgroups? We introduce a conceptual framework of context-dependent categorization, in which exposure to one minority leads to recategorization of... View Details
Keywords: In-group-out-group Relations; Immigration; Race; Attitudes; Boundaries; Prejudice and Bias
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Fouka, Vasiliki, and Marco Tabellini. "Changing Ingroup Boundaries: The Effect of Immigration on Race Relations in the U.S." Harvard Business School Working Paper, No. 20-100, March 2020. (Accepted at American Political Science Review. Revised June 2021.)
  • 2014
  • Working Paper

Cleaning House: The Impact of Information Technology on Employee Corruption and Performance

By: Lamar Pierce, Daniel Snow and Andrew McAfee
This paper examines how firm investments in technology-based employee monitoring impact both misconduct and productivity. We use unique and detailed theft and sales data from 392 restaurant locations from five firms that adopt a theft monitoring information technology... View Details
Keywords: Management Practices and Processes; Information Technology; Ethics; Performance Productivity; Employees
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Pierce, Lamar, Daniel Snow, and Andrew McAfee. "Cleaning House: The Impact of Information Technology on Employee Corruption and Performance." MIT Sloan Research Paper, No. 5029-13, October 2014.
  • 2025
  • Working Paper

The Value of Silence: The Effect of UMG’s Licensing Dispute with TikTok on Music Demand

By: Mengjie (Magie) Cheng, Elie Ofek and Hema Yoganarasimhan
Social media platforms like TikTok have transformed how music is discovered, consumed, and monetized. This study examines the implications of the dispute between TikTok and Universal Music Group (UMG), which resulted in UMG excluding its music from TikTok from... View Details
Keywords: Demand And Consumers; Monetization; Social Media; Revenue; Conflict and Resolution; Music Industry
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Cheng, Mengjie (Magie), Elie Ofek, and Hema Yoganarasimhan. "The Value of Silence: The Effect of UMG’s Licensing Dispute with TikTok on Music Demand." Harvard Business School Working Paper, No. 25-014, July 2024. (Revised June 2025.)
  • Article

Association of the Meaningful Use Electronic Health Record Incentive Program with Health Information Technology Venture Capital Funding

By: Samuel Lite, William J. Gordon and Ariel Dora Stern
IMPORTANCE
Although the Health Information Technology for Economic and Clinical Health (HITECH) Act has accelerated electronic health record (EHR) adoption since its passage, clinician satisfaction with EHRs remains low, and the association of HITECH with... View Details
Keywords: Health Care and Treatment; Information Technology; Laws and Statutes; Innovation and Invention; Entrepreneurship; Venture Capital
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Lite, Samuel, William J. Gordon, and Ariel Dora Stern. "Association of the Meaningful Use Electronic Health Record Incentive Program with Health Information Technology Venture Capital Funding." JAMA Network Open 3, no. 3 (March 2020).
  • 12 Aug 2014
  • First Look

First Look: August 12

km of roads in India. We use a difference-in-difference estimation strategy to compare non-nodal districts based upon their distance from the highway system. We find several positive effects for non-nodal districts located 0-10 km from GQ... View Details
Keywords: Sean Silverthorne
  • Web

Human Behavior & Decision-Making - Faculty & Research

perceived more spontaneous kinds of thought to reveal greater self-insight than more controlled kinds of thought in Study 1 (e.g., intuition versus deliberation), and perceived thoughts with the same content and target to reveal greater self-insight when spontaneously... View Details
  • 22 Sep 2009
  • First Look

First Look: September 22

quality, firms differentiate through choosing different business models; and (iv) low-quality firms are generally more prone to opening some of their technologies than firms with high-quality products. Download the paper:... View Details
Keywords: Martha Lagace
  • 18 Nov 2014
  • First Look

First Look: November 18

how TV advertising influences changes in online shopping within two-minute pre/post windows of time. We use non-advertising competitors' online shopping in a difference-in-differences approach to measure the same effects in two-hour... View Details
Keywords: Sean Silverthorne
  • 02 Oct 2018
  • First Look

New Research and Ideas, October 2, 2018

in much the same way that historical perspectives helped to shape the first generation of endogenous growth theories. Publisher's link: https://www.hbs.edu/faculty/Pages/item.aspx?num=55039 September 21, 2018 Harvard Business Review... View Details
Keywords: Dina Gerdeman
  • 15 Nov 2016
  • First Look

November 15, 2016

neglect the unit managers’ knowledge about which individuals would best match local conditions. We use difference-in-differences analyses to examine the effects of a switch from decentralized hiring to centralized hiring at our research... View Details
Keywords: Sean Silverthorne
  • 13 Feb 2007
  • First Look

First Look: February 13, 2007

contribute to longer term complementary effects which work to overcome the losses from cannibalization. Our results are based on both interrupted time series analysis and a difference-in-differences analysis of six years of proprietary... View Details
Keywords: Martha Lagace
  • 17 Jul 2018
  • First Look

New Research and Ideas, July 17, 2018

introduction of a very general class of unobserved heterogeneity on agents' preferences. Under minimal assumptions, we show existence and uniqueness of equilibrium. We provide two algorithms to compute the equilibria in our model. The... View Details
Keywords: Dina Gerdeman
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