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All HBS Web
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- Research (33)
- Faculty Publications (14)
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- 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...
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Keywords:
Difference In Differences;
Staggered Difference-in-differences Designs;
Generalized Difference-in-differences;
Dynamic Treatment Effects;
Mathematical Methods
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.)
- 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...
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Keywords:
Difference In Differences;
Staggered Difference-in-differences Designs;
Generalized Difference-in-differences;
Dynamic Treatment Effects;
Mathematical Methods
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.)
- 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,...
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Keywords:
Special Purpose Acquisition Companies;
Non-bank Intermediaries;
Regulatory Arbitrage;
Adverse Selection;
Initial Public Offering
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...
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Keywords:
Brokers;
Analysts;
Forecasts;
Bias;
Protocol;
Investment;
Research;
Forecasting and Prediction
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...
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Keywords:
ESG Ratings;
Rating Agency Disagreement;
ESG Disclosure;
Corporate Social Responsibility;
Sustainability;
Corporate Social Responsibility and Impact;
Environmental Sustainability;
Corporate Disclosure
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....
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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...
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Keywords:
In-group-out-group Relations;
Ingroup-outgroup Relations;
Immigration;
Race;
Relationships;
United States
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...
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Keywords:
In-group-out-group Relations;
Immigration;
Race;
Attitudes;
Boundaries;
Prejudice and Bias
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...
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Keywords:
Management Practices and Processes;
Information Technology;
Ethics;
Performance Productivity;
Employees
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.
- 2023
- Working Paper
Bringing Science to Market: Knowledge Foundations and Performance
By: Justine Boudou and Maria Roche
Possessing unique knowledge is widely considered a critical source of competitive advantage. In this paper, we assess whether new ventures that exploit their founders’ technologically unique knowledge perform better on the exit market than those that do not (or only...
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Keywords:
Firm Performance;
Knowledge Foundations;
Exits;
Academic Startups;
Competitive Advantage;
Value Creation;
Research;
Information Publishing;
Business Startups;
Entrepreneurship
Boudou, Justine, and Maria Roche. "Bringing Science to Market: Knowledge Foundations and Performance." Harvard Business School Working Paper, No. 24-021, October 2023.
- Web
Faculty & Research
(NCA) enforcement generates spillover effects on sell-side analysts. Entry into this agreement reassigns ownership of the client relationship from the brokerage house to individual brokers, potentially View Details
- 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
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
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).
- Web
Asia Pacific - Global
provides a quasi-natural experiment to evaluate the impact of antitrust regulation on platform competition. We adopt a difference-in-differences approach to empirically explore the impact of China’s Platform Guidelines on the number of...
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- 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...
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Keywords:
Sean Silverthorne
- 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:...
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Keywords:
Martha Lagace
- Web
Globalization - Faculty & Research
OSS participation. We propose an approach using instrumental variables, and cannot reject a causal interpretation. The study finds that an increase in GitHub participation in a given country generates an increase in the number of new...
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- 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...
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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...
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Keywords:
Martha Lagace
- 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://pubwww.hbs.edu/faculty/Pages/item.aspx?num=55039 September 21, 2018 Harvard Business Review...
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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...
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Keywords:
Sean Silverthorne