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- Faculty Publications (256)
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All HBS Web
(1,372)
- Faculty Publications (256)
- Article
Expected Stock Returns Worldwide: A Log-Linear Present-Value Approach
By: Akash Chattopadhyay, Matthew R. Lyle and Charles C.Y. Wang
This study provides the first large-scale study of the performance of expected-return proxies (ERPs) internationally. Analyst-forecast-based ICCs are sparsely populated and not robustly associated with future returns. Earnings-model-forecast-based ICCs are...
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Keywords:
Expected Returns;
Discount Rates;
Fundamental Valuation;
Implied Cost Of Capital;
International Equity Markets;
Present Value;
Investment Return;
Equity;
Markets;
Global Range
Chattopadhyay, Akash, Matthew R. Lyle, and Charles C.Y. Wang. "Expected Stock Returns Worldwide: A Log-Linear Present-Value Approach." Accounting Review 97, no. 2 (March 2022): 107–133.
- March 2022
- Article
Winner Takes All? Tech Clusters, Population Centers, and the Spatial Transformation of U.S. Invention
By: Brad Chattergoon and William R. Kerr
U.S. invention has become increasingly concentrated around major tech centers since the 1970s, with implications for how much cities across the country share in concomitant local benefits. Is invention becoming a winner-takes-all race? We explore the rising spatial...
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Keywords:
Clusters;
Invention;
Agglomeration;
Artificial Intelligence;
Innovation and Invention;
Patents;
Applications and Software;
Industry Clusters;
AI and Machine Learning
Chattergoon, Brad, and William R. Kerr. "Winner Takes All? Tech Clusters, Population Centers, and the Spatial Transformation of U.S. Invention." Art. 104418. Research Policy 51, no. 2 (March 2022).
- February 2022 (Revised February 2024)
- Case
Sekisui House and the In-Home Early Detection Platform
By: John D. Macomber and Akiko Kanno
To address an aging population and sales declines, a major Japanese homebuilder considers pivoting to provide and support an in-home health detection platform, in competition with tech companies. This case considers the point of view of major builders regarding how...
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Keywords:
Voice Assistants;
Architecture;
Smart Home;
Aging Society;
Digitalization;
Real Estate;
Home Automation;
Sensors;
Strategy;
Digital Platforms;
Health Care and Treatment;
Housing;
Age;
Real Estate Industry;
Construction Industry;
Health Industry;
Japan
Macomber, John D., and Akiko Kanno. "Sekisui House and the In-Home Early Detection Platform." Harvard Business School Case 222-070, February 2022. (Revised February 2024.)
- 2022
- Working Paper
Hate Crime Increases with Minoritized Group Rank
People are on the move in unprecedented numbers within and between countries. How does demographic change affect local intergroup dynamics? In complement to accounts that emphasize stereotypical features of groups as determinants of their treatment, we propose the...
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- 2022
- Working Paper
The Impact of Campaign Finance Rules on Candidate Selection and Electoral Outcomes: Evidence from France
By: Nikolaj Broberg, Vincent Pons and Clémence Tricaud
This paper investigates the effects of campaign finance rules on electoral outcomes. In French departmental and municipal elections, candidates competing in districts above 9,000 inhabitants face spending limits and are eligible for public reimbursement if they obtain...
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Keywords:
Political Elections;
Finance;
Governing Rules, Regulations, and Reforms;
Outcome or Result;
France
Broberg, Nikolaj, Vincent Pons, and Clémence Tricaud. "The Impact of Campaign Finance Rules on Candidate Selection and Electoral Outcomes: Evidence from France." NBER Working Paper Series, No. 29805, February 2022.
- 2022
- Article
Alleviating Time Poverty Among the Working Poor: A Pre-Registered Longitudinal Field Experiment
By: A.V. Whillans and Colin West
Poverty entails more than a scarcity of material resources—it also involves a shortage of time. To examine the causal benefits of reducing time poverty, we conducted a longitudinal feld experiment over six consecutive weeks in an urban slum in Kenya with a sample of...
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Keywords:
Time;
Subjective Well Being;
Administrative Costs;
Friction;
Poverty;
Well-being;
Money;
Perception;
Kenya
Whillans, A.V., and Colin West. "Alleviating Time Poverty Among the Working Poor: A Pre-Registered Longitudinal Field Experiment." Art. 719. Scientific Reports 12 (2022).
- January 2022
- Background Note
Native American Incarceration
By: Reshmaan Hussam, Sophus A. Reinert and Jordan Naylor
In the early twenty-first century the Native American populations of the United States continued to live with the legacy of colonialism, ethnic cleansing, and cultural destruction. Although other minority groups had increasingly been able to make their voices heard,...
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Hussam, Reshmaan, Sophus A. Reinert, and Jordan Naylor. "Native American Incarceration." Harvard Business School Background Note 722-042, January 2022.
- January 2022 (Revised March 2022)
- Technical Note
Deglobalization and Alternative Futures
By: Geoffrey Jones and Valeria Giacomin
This note reviews the evidence that the world is undergoing an era of de-globalization. It shows that available metrics show some support for this theory. However there is also evidence that what is happening might be better described as regionalization. The nature of...
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Keywords:
Global Business;
Regional Economic Activity: Growth, Development, Environmental Issues, And Changes;
Populism;
Geopolitics;
Business History;
Globalization;
Change;
Financial Crisis;
China
Jones, Geoffrey, and Valeria Giacomin. "Deglobalization and Alternative Futures." Harvard Business School Technical Note 322-088, January 2022. (Revised March 2022.)
- Article
Applying Human-Centered Design Principles to Digital Syndromic Surveillance at a Mass Gathering in India: Viewpoint
By: Ahmed Shaikh, Abhishek Bhatia, Ghanshyam Yadav, Shashwat Hora, Chung Won, Mark Shankar, Aaron Heerboth, Prakash Vemulapalli, Paresh Navalkar, Kunal Oswal, Clay Heaton, Sujata Saunik, Tarun Khanna and Satchit Balsari
In the wake of the COVID-19 pandemic, digital health tools have been deployed by governments around the world to advance clinical and population health objectives. Few interventions have been successful or have achieved sustainability or scale. In India, government...
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Keywords:
Digital Health Tools;
Human-centered Design;
Health Care and Treatment;
Mobile and Wireless Technology;
Design;
Technology Adoption
Shaikh, Ahmed, Abhishek Bhatia, Ghanshyam Yadav, Shashwat Hora, Chung Won, Mark Shankar, Aaron Heerboth, Prakash Vemulapalli, Paresh Navalkar, Kunal Oswal, Clay Heaton, Sujata Saunik, Tarun Khanna, and Satchit Balsari. "Applying Human-Centered Design Principles to Digital Syndromic Surveillance at a Mass Gathering in India: Viewpoint." Journal of Medical Internet Research 24, no. 1 (January 2022).
- January 2022
- Article
Who Creates New Firms When Local Opportunities Arise?
By: Shai Benjamin Bernstein, Emanuele Colonnelli, Davide Malacrino and Timothy McQuade
We examine the characteristics of the individuals who become entrepreneurs when local opportunities arise. We identify local demand shocks by linking fluctuations in global commodity prices to municipality level agricultural endowments in Brazil. We find that the firm...
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Keywords:
Firms;
Entrepreneurs;
Demand Shocks;
Entrepreneurship;
Personal Characteristics;
Demographics;
Opportunities;
Brazil
Bernstein, Shai Benjamin, Emanuele Colonnelli, Davide Malacrino, and Timothy McQuade. "Who Creates New Firms When Local Opportunities Arise?" Journal of Financial Economics 143, no. 1 (January 2022): 107–130.
- Article
Megastudies Improve the Impact of Applied Behavioural Science
By: Katherine L. Milkman, Dena Gromet, Hung Ho, Joseph S. Kay, Timothy W. Lee, Pepi Pandiloski, Yeji Park, Aneesh Rai, Max Bazerman, John Beshears, Lauri Bonacorsi, Colin Camerer, Edward Chang, Gretchen Chapman, Robert Cialdini, Hengchen Dai, Lauren Eskreis-Winkler, Ayelet Fishbach, James J. Gross, Samantha Horn, Alexa Hubbard, Steven J. Jones, Dean Karlan, Tim Kautz, Erika Kirgios, Joowon Klusowski, Ariella Kristal, Rahul Ladhania, Jens Ludwig, George Loewenstein, Barbara Mellers, Sendhil Mullainathan, Silvia Saccardo, Jann Spiess, Gaurav Suri, Joachim H. Talloen, Jamie Taxer, Yaacov Trope, Lyle Ungar, Kevin G. Volpp, Ashley V. Whillans, Jonathan Zinman and Angela L. Duckworth
Policy-makers are increasingly turning to behavioural science for insights about how to improve citizens’ decisions and outcomes. Typically, different scientists test different intervention ideas in different samples using different outcomes over different time...
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Milkman, Katherine L., Dena Gromet, Hung Ho, Joseph S. Kay, Timothy W. Lee, Pepi Pandiloski, Yeji Park, Aneesh Rai, Max Bazerman, John Beshears, Lauri Bonacorsi, Colin Camerer, Edward Chang, Gretchen Chapman, Robert Cialdini, Hengchen Dai, Lauren Eskreis-Winkler, Ayelet Fishbach, James J. Gross, Samantha Horn, Alexa Hubbard, Steven J. Jones, Dean Karlan, Tim Kautz, Erika Kirgios, Joowon Klusowski, Ariella Kristal, Rahul Ladhania, Jens Ludwig, George Loewenstein, Barbara Mellers, Sendhil Mullainathan, Silvia Saccardo, Jann Spiess, Gaurav Suri, Joachim H. Talloen, Jamie Taxer, Yaacov Trope, Lyle Ungar, Kevin G. Volpp, Ashley V. Whillans, Jonathan Zinman, and Angela L. Duckworth. "Megastudies Improve the Impact of Applied Behavioural Science." Nature 600, no. 7889 (December 16, 2021): 478–483.
- Article
Social Technology: An Interdisciplinary Approach to Improving Care for Older Adults
By: Arthur Kleinman, Hongtu Chen, Sue E. Levkoff, Ann Forsyth, David E. Bloom, Winnie Yip, Tarun Khanna, Conor J. Walsh, David Perry, Ellen W. Seely, Anne S. Kleinman, Yan Zhang, Yuan Wang, Jun Jing, Tianshu Pan, Ning An, Zhenggang Bai, Jiexiu Wang, Qing Liu and Fawwaz Habbal
Population aging is a defining demographic reality of our era. It is associated with an increase in the societal burden of delivering care to older adults with chronic conditions or frailty. How to integrate global population aging and technology development to help...
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Keywords:
Health Care and Treatment;
Age;
Service Delivery;
Information Technology;
Collaborative Innovation and Invention
Kleinman, Arthur, Hongtu Chen, Sue E. Levkoff, Ann Forsyth, David E. Bloom, Winnie Yip, Tarun Khanna, Conor J. Walsh, David Perry, Ellen W. Seely, Anne S. Kleinman, Yan Zhang, Yuan Wang, Jun Jing, Tianshu Pan, Ning An, Zhenggang Bai, Jiexiu Wang, Qing Liu, and Fawwaz Habbal. "Social Technology: An Interdisciplinary Approach to Improving Care for Older Adults." Art. 729149. Frontiers in Public Health 9 (2021).
- November 2021 (Revised December 2021)
- Case
Praava Health: A New Model for Bangladesh
By: Michael Chu
Launched in Dhaka, Bangladesh, in 2018, Praava Health (‘Praava’) delivered high-quality in-clinic primary and specialist care, backed by its own high quality diagnostic laboratories, imaging and pharmacy. Praava was founder Sylvana Sinha’s response to what she saw as a...
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Keywords:
Entrepreneurship;
Health Care and Treatment;
Investment Return;
Mobile and Wireless Technology;
Business Model;
Growth and Development Strategy;
Health Industry;
Bangladesh;
Asia
Chu, Michael. "Praava Health: A New Model for Bangladesh." Harvard Business School Case 322-067, November 2021. (Revised December 2021.)
- November 2021 (Revised May 2022)
- Case
West Virginia: Finding the Right Path Forward
By: Matthew C. Weinzierl, Christine Keung and Reggie Smith
Once at the center of the American economy, the state of West Virginia had seen decades of decline as its coal industry fell on hard times. With beautiful but challenging topography, a proud but shrinking population, and a new scourge of the opioid epidemic, the...
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Keywords:
Population Health;
Geographic Location;
Economic Slowdown and Stagnation;
Problems and Challenges;
Social Issues;
West Virginia
Weinzierl, Matthew C., Christine Keung, and Reggie Smith. "West Virginia: Finding the Right Path Forward." Harvard Business School Case 722-024, November 2021. (Revised May 2022.)
- November 2021 (Revised November 2023)
- Case
Hitting Home: Amazon and Mary's Place
By: Paul M. Healy, Debora L. Spar and Amy Klopfenstein
In 2020, Amazon, the $386 billion online retail behemoth, built an eight-story shelter for women and families experiencing homelessness on its expanding headquarters in Seattle, Washington. The shelter, operated in partnership with a non-profit organization known as...
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Keywords:
Business Ethics;
Homelessness;
Business And Society;
Corporate Social Responsibility and Impact;
Social Issues;
Corporate Accountability;
Urban Development;
Society;
Information Technology;
Ethics;
Technology Industry;
Seattle;
United States;
North America
Healy, Paul M., Debora L. Spar, and Amy Klopfenstein. "Hitting Home: Amazon and Mary's Place." Harvard Business School Case 122-017, November 2021. (Revised November 2023.)
- 2021
- Working Paper
Winner Takes All? Tech Clusters, Population Centers, and the Spatial Transformation of U.S. Invention
By: Brad Chattergoon and William R. Kerr
U.S. invention has become increasingly concentrated around major tech centers since the 1970s, with implications for how much cities across the country share in concomitant local benefits. Is invention becoming a winner-takes-all race? We explore the rising spatial...
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Keywords:
Invention;
Innovation;
Artificial Intelligence;
Clusters;
Agglomeration;
Innovation and Invention;
Patents;
Applications and Software;
Industry Clusters;
United States
Chattergoon, Brad, and William R. Kerr. "Winner Takes All? Tech Clusters, Population Centers, and the Spatial Transformation of U.S. Invention." Harvard Business School Working Paper, No. 22-027, October 2021. (NBER Working Paper Series, No. 29456, November 2021.)
- 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...
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Keywords:
Panel Data;
Dynamic Causal Effects;
Potential Outcomes;
Finite Population;
Nonparametric;
Mathematical Methods
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.
- September–October 2021
- Article
Frontiers: Can an AI Algorithm Mitigate Racial Economic Inequality? An Analysis in the Context of Airbnb
By: Shunyuan Zhang, Nitin Mehta, Param Singh and Kannan Srinivasan
We study the effect of Airbnb’s smart-pricing algorithm on the racial disparity in the daily revenue earned by Airbnb hosts. Our empirical strategy exploits Airbnb’s introduction of the algorithm and its voluntary adoption by hosts as a quasi-natural experiment. Among...
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Keywords:
Smart Pricing;
Pricing Algorithm;
Machine Bias;
Discrimination;
Racial Disparity;
Social Inequality;
Airbnb Revenue;
Revenue;
Race;
Equality and Inequality;
Prejudice and Bias;
Price;
Mathematical Methods;
Accommodations Industry
Zhang, Shunyuan, Nitin Mehta, Param Singh, and Kannan Srinivasan. "Frontiers: Can an AI Algorithm Mitigate Racial Economic Inequality? An Analysis in the Context of Airbnb." Marketing Science 40, no. 5 (September–October 2021): 813–820.
- September 15, 2021
- Article
Improving Deconvolution Methods in Biology Through Open Innovation Competitions: An Application to the Connectivity Map
By: Andrea Blasco, Ted Natoli, Michael G. Endres, Rinat A. Sergeev, Steven Randazzo, Jin Hyun Paik, N.J. Maximilian Macaluso, Rajiv Narayan, Xiaodong Lu, David Peck, Karim R. Lakhani and Aravind Subramanian
A recurring problem in biomedical research is how to isolate signals of distinct populations (cell types, tissues, and genes) from composite measures obtained by a single analyte or sensor. Existing computational deconvolution approaches work well in many specific...
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Keywords:
Deconvolution;
Methods;
Open Innovation Competition;
Genomics;
Research;
Innovation and Invention
Blasco, Andrea, Ted Natoli, Michael G. Endres, Rinat A. Sergeev, Steven Randazzo, Jin Hyun Paik, N.J. Maximilian Macaluso, Rajiv Narayan, Xiaodong Lu, David Peck, Karim R. Lakhani, and Aravind Subramanian. "Improving Deconvolution Methods in Biology Through Open Innovation Competitions: An Application to the Connectivity Map." Bioinformatics 37, no. 18 (September 15, 2021).
- August 2021
- Technical Note
Brand You: Crafting Your Personal Brand
By: Jill Avery and Rachel Greenwald
Selling oneself is something that we have to do every day in both professional and personal settings. We face it when we apply for a job, advocate for a promotion or a raise, vie for a leadership position, attempt to land a new client, write a dating profile, or meet a...
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Keywords:
Personal Brand;
Brand Management;
Marketing;
Brands and Branding;
Identity;
Opportunities;
Talent and Talent Management;
Jobs and Positions;
Strength and Weakness;
Communication
Avery, Jill, and Rachel Greenwald. "Brand You: Crafting Your Personal Brand." Harvard Business School Technical Note 522-031, August 2021.