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All HBS Web
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- Faculty Publications (107)
- 2020
- Working Paper
What Jobs Are Being Done at Home During the COVID-19 Crisis? Evidence from Firm-Level Surveys
The threat of COVID-19 has increased the health risks of going to an office or factory, leading more workers to do their jobs remotely. In this paper, we provide results from firm surveys on both small and large businesses on the prevalence and productivity of remote...
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Bartik, Alexander, Zoë Cullen, Edward L. Glaeser, Michael Luca, and Christopher Stanton. "What Jobs Are Being Done at Home During the COVID-19 Crisis? Evidence from Firm-Level Surveys." Harvard Business School Working Paper, No. 20-138, June 2020.
- Summer 2020
- Article
Want to Make Better Decisions? Start Experimenting
By: Michael Luca and Max Bazerman
Four lessons for using randomized controlled experiments to create value for your company and customers
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Luca, Michael, and Max Bazerman. "Want to Make Better Decisions? Start Experimenting." MIT Sloan Management Review 61, no. 4 (Summer 2020).
- May 2020
- Article
Digitizing Disclosure: The Case of Restaurant Hygiene Scores
By: Weijia (Daisy) Dai and Michael Luca
Collaborating with Yelp and the city of San Francisco, we revisit a canonical example of quality disclosure by evaluating and helping to redesign the posting of restaurant hygiene scores on Yelp.com. We implement a two-stage intervention that separately identifies...
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Keywords:
Corporate Disclosure;
Consumer Behavior;
Knowledge Dissemination;
Food and Beverage Industry
Dai, Weijia (Daisy), and Michael Luca. "Digitizing Disclosure: The Case of Restaurant Hygiene Scores." American Economic Journal: Microeconomics 12, no. 2 (May 2020): 41–59.
- March 2020
- Teaching Note
Behavior Change for Good
By: Michael Luca and Max Bazerman
Teaching Note for HBS No. 920-049.
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- March 2020 (Revised March 2023)
- Module Note
The Role of Experiments in Organizations
By: Michael Luca
This note outlines the structure and content of a four-class module—The Role of Experiments in Organizations—that is designed to introduce students to the role of experimental methods in managerial decisions.
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Luca, Michael. "The Role of Experiments in Organizations." Harvard Business School Module Note 920-044, March 2020. (Revised March 2023.)
- March 2020 (Revised August 2022)
- Case
Racial Discrimination on Airbnb (A)
By: Michael Luca, Scott Stern, Devin Cook and Hyunjin Kim
Facing mounting criticism and evidence of widespread racial discrimination on the platform, apartment rental platform Airbnb needed to decide a path forward. For years, Airbnb had given hosts extensive discretion about whether to reject a guest after seeing little more...
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Keywords:
Platform Design;
Digital Platforms;
Design;
Prejudice and Bias;
Trust;
Problems and Challenges
Luca, Michael, Scott Stern, Devin Cook, and Hyunjin Kim. "Racial Discrimination on Airbnb (A)." Harvard Business School Case 920-051, March 2020. (Revised August 2022.)
- March 2020 (Revised February 2023)
- Teaching Note
Racial Discrimination on Airbnb (A) and (B)
By: Michael Luca
Teaching Note for HBS No. 920-051.
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- March 2020
- Case
Behavior Change for Good
By: Max Bazerman, Michael Luca and Marie Lawrence
In 2017, Katy Milkman and Angela Duckworth created Behavior Change for Good (BCFG)—a behavioral science initiative founded with the goal of helping people achieve long-term behavior change in the areas of personal health, financial decisions (savings), and education....
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Bazerman, Max, Michael Luca, and Marie Lawrence. "Behavior Change for Good." Harvard Business School Case 920-049, March 2020.
- 2020
- Book
The Power of Experiments: Decision-Making in a Data-Driven World
By: Michael Luca and Max H. Bazerman
Have you logged into Facebook recently? Searched for something on Google? Chosen a movie on Netflix? If so, you've probably been an unwitting participant in a variety of experiments—also known as randomized controlled trials—designed to test the impact of changes to an...
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Keywords:
Experiments;
Randomized Controlled Trials;
Organizations;
Decision Making;
Analytics and Data Science;
Management Analysis, Tools, and Techniques
Luca, Michael, and Max H. Bazerman. The Power of Experiments: Decision-Making in a Data-Driven World. Cambridge, MA: MIT Press, 2020.
- January 2020
- Article
The Impact of Mass Shootings on Gun Policy
By: Michael Luca, Deepak Malhotra and Christopher Poliquin
There have been dozens of high-profile mass shootings in recent decades. This paper presents three main findings about the impact of mass shootings on gun policy. First, mass shootings evoke large policy responses. A single mass shooting leads to a 15% increase in the...
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Luca, Michael, Deepak Malhotra, and Christopher Poliquin. "The Impact of Mass Shootings on Gun Policy." Art. 104083. Journal of Public Economics 181 (January 2020).
- October 14, 2019
- Article
Designing Better Online Review Systems
By: Geoff Donaker, Hyunjin Kim and Michael Luca
Online reviews are transforming the way consumers choose products and services of all sorts. We turn to TripAdvisor to plan a vacation, Zocdoc to find a doctor, and Yelp to choose a new restaurant. Reviews can create value for buyers and sellers alike, but only if they...
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Donaker, Geoff, Hyunjin Kim, and Michael Luca. "Designing Better Online Review Systems." Harvard Business Review 97, no. 6 (November–December 2019): 122–129.
- Winter 2019
- Article
Economists (and Economics) in Tech Companies
By: Susan Athey and Michael Luca
As technology platforms have created new markets and new ways of acquiring information, economists have come to play an increasingly central role in tech companies—tackling problems such as platform design, strategy, pricing, and policy. Over the past five years,...
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Keywords:
Technology Companies;
Economists;
Digital Platforms;
Jobs and Positions;
Competency and Skills;
Technology Industry
Athey, Susan, and Michael Luca. "Economists (and Economics) in Tech Companies." Journal of Economic Perspectives 33, no. 1 (Winter 2019): 209–230.
- Article
Product Quality and Entering Through Tying: Experimental Evidence
By: Hyunjin Kim and Michael Luca
Dominant platform businesses often develop products in adjacent markets to complement their core business. One common approach used to gain traction in these adjacent markets has been to pursue a tying strategy. For example, Microsoft pre-installed Internet Explorer...
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Keywords:
Tying;
Platform Strategy;
Google;
Product;
Quality;
Digital Platforms;
Strategy;
Market Entry and Exit
Kim, Hyunjin, and Michael Luca. "Product Quality and Entering Through Tying: Experimental Evidence." Management Science 65, no. 2 (February 2019): 596–603.
- December 2018 (Revised June 2020)
- Case
Creating the French Behavioral Insights Team
By: Michael Luca, Ariella Kristal and Emilie Billaud
This case explores how neuroscientist Mariam Chammat helped set up the first behavioral insights team at the center of the French government, and encouraged French administrations to innovate and create policy initiatives based on psychological theories of influence...
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Keywords:
Choice Architecture;
Behavioral Economics;
Experiments;
Negotiation;
Decision Making;
Economics;
Taxation;
Entrepreneurship;
Consumer Behavior;
Public Administration Industry;
Europe;
France;
Paris
Luca, Michael, Ariella Kristal, and Emilie Billaud. "Creating the French Behavioral Insights Team." Harvard Business School Case 919-015, December 2018. (Revised June 2020.)
- 2018
- Working Paper
Product Quality and Entering Through Tying: Experimental Evidence
By: Michael Luca
Dominant platform businesses often develop products in adjacent markets to complement their core business. One common approach used to gain traction in these adjacent markets has been to pursue a tying strategy. For example, Microsoft pre-installed Internet Explorer...
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Keywords:
Market Entry and Exit;
Digital Platforms;
Competitive Strategy;
Product Marketing;
Quality
Kim, Hyunjin, and Michael Luca. "Product Quality and Entering Through Tying: Experimental Evidence." Harvard Business School Working Paper, No. 19-045, October 2018. (Revised December 2018. Forthcoming in Management Science.)
- September 2018
- Article
Aggregation of Consumer Ratings: An Application to Yelp.com
By: Weijia Dai, Ginger Jin, Jungmin Lee and Michael Luca
Because consumer reviews leverage the wisdom of the crowd, the way in which they are aggregated is a central decision faced by platforms. We explore this "rating aggregation problem" and offer a structural approach to solving it, allowing for (1) reviewers to vary in...
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Keywords:
User Generated Content;
Crowdsourcing;
Yelp;
Social and Collaborative Networks;
Information;
Internet and the Web;
Learning;
Mathematical Methods;
E-commerce
Dai, Weijia, Ginger Jin, Jungmin Lee, and Michael Luca. "Aggregation of Consumer Ratings: An Application to Yelp.com." Quantitative Marketing and Economics 16, no. 3 (September 2018): 289–339.
- 2018
- Working Paper
Measuring Gentrification: Using Yelp Data to Quantify Neighborhood Change
By: Edward L. Glaeser, Hyunjin Kim and Michael Luca
We demonstrate that data from digital platforms such as Yelp have the potential to improve our understanding of gentrification, both by providing data in close to real time (i.e., nowcasting and forecasting) and by providing additional context about how the local...
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Keywords:
Geographic Location;
Local Range;
Transition;
Analytics and Data Science;
Measurement and Metrics;
Forecasting and Prediction
Glaeser, Edward L., Hyunjin Kim, and Michael Luca. "Measuring Gentrification: Using Yelp Data to Quantify Neighborhood Change." NBER Working Paper Series, No. 24952, August 2018.
- May 16, 2018
- Other Article
How Companies Can Use the Data They Collect to Further the Public Good
By: Edward L. Glaeser, Hyunjin Kim and Michael Luca
Glaeser, Edward L., Hyunjin Kim, and Michael Luca. "How Companies Can Use the Data They Collect to Further the Public Good." Harvard Business Review (website) (May 16, 2018).
- May 2018
- Article
Nowcasting Gentrification: Using Yelp Data to Quantify Neighborhood Change
By: Edward L. Glaeser, Hyunjin Kim and Michael Luca
Data from digital platforms have the potential to improve our understanding of gentrification and enable new measures of how neighborhoods change in close to real time. Combining data on businesses from Yelp with data on gentrification from the Census, Federal Housing...
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Keywords:
Forecasting Models;
Simulation Methods;
Regional Economic Activity: Growth, Development, Environmental Issues, And Changes;
Geographic Location;
Local Range;
Transition;
Analytics and Data Science;
Measurement and Metrics;
Economic Growth;
Forecasting and Prediction
Glaeser, Edward L., Hyunjin Kim, and Michael Luca. "Nowcasting Gentrification: Using Yelp Data to Quantify Neighborhood Change." AEA Papers and Proceedings 108 (May 2018): 77–82.
- March 2018
- Case
Nudging Hand Hygiene Compliance at the Brigham and Women's Hospital
By: John Beshears, Michael Luca, Alister Martin and Simin Gharib Lee
Beshears, John, Michael Luca, Alister Martin, and Simin Gharib Lee. "Nudging Hand Hygiene Compliance at the Brigham and Women's Hospital." Harvard Business School Case 918-035, March 2018.