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Show Results For
- All HBS Web
(292)
- News (94)
- Research (153)
- Multimedia (2)
- Faculty Publications (54)
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- 2015
- Working Paper
Fake It Till You Make It: Reputation, Competition, and Yelp Review Fraud
By: Michael Luca and Georgios Zervas
Consumer reviews are now part of everyday decision-making. Yet, the credibility of these reviews is fundamentally undermined when businesses commit review fraud, creating fake reviews for themselves or their competitors. We investigate the economic incentives to commit... View Details
Keywords: Information; Competition; Internet and the Web; Ethics; Reputation; Social and Collaborative Networks; Food and Beverage Industry; Food and Beverage Industry
Luca, Michael, and Georgios Zervas. "Fake It Till You Make It: Reputation, Competition, and Yelp Review Fraud." Working Paper. (May 2015. Revise and resubmit, Management Science.)
- 18 Aug 2011
- Lessons from the Classroom
Business Plan Contest: 15 Years of Building Better Entrepreneurs
and context. By afternoon, 28 teams in the business and social venture tracks will be named semifinalists. A later round of judging will narrow the field to nine finalists,... View Details
- April 2024
- Article
Decision Authority and the Returns to Algorithms
By: Hyunjin Kim, Edward L. Glaeser, Andrew Hillis, Scott Duke Kominers and Michael Luca
We evaluate a pilot in an Inspections Department to explore the returns to a pair of algorithms that varied in their sophistication. We find that both algorithms provided substantial prediction gains, suggesting that even simple data may be helpful. However, these... View Details
Keywords: Algorithmic Aversion; Algorithmic Decision Making; Algorithms; Public Entrepreneurship; Govenment; Local Government; Crowdsourcing; Crowdsourcing Contests; Inspection; Principal-agent Theory; Government Administration; Decision Making; Public Administration Industry; United States
Kim, Hyunjin, Edward L. Glaeser, Andrew Hillis, Scott Duke Kominers, and Michael Luca. "Decision Authority and the Returns to Algorithms." Strategic Management Journal 45, no. 4 (April 2024): 619–648.
- 27 Sep 2011
- First Look
First Look: September 27
Michael W. Toffel Abstract Process-improvement ideas often come from frontline workers who speak up by voicing concerns about problems and by... View Details
Keywords: Sean Silverthorne
- Article
What Makes a Critic Tick? Connected Authors and the Determinants of Book Reviews
By: Loretti I. Dobrescu, Michael Luca and Alberto Motta
This paper investigates the determinants of expert reviews in the book industry. Reviews are determined not only by the quality of the product, but also by the incentives of the media outlet providing the review. For example, a media outlet may have the incentive to... View Details
Dobrescu, Loretti I., Michael Luca, and Alberto Motta. "What Makes a Critic Tick? Connected Authors and the Determinants of Book Reviews." Journal of Economic Behavior & Organization 96 (December 2013): 85–103.
- December 2016
- Article
Fake It Till You Make It: Reputation, Competition, and Yelp Review Fraud
By: Michael Luca and Georgios Zervas
Consumer reviews are now part of everyday decision making. Yet, the credibility of these reviews is fundamentally undermined when businesses commit review fraud, creating fake reviews for themselves or their competitors. We investigate the economic incentives to commit... View Details
Luca, Michael, and Georgios Zervas. "Fake It Till You Make It: Reputation, Competition, and Yelp Review Fraud." Management Science 62, no. 12 (December 2016): 3412–3427.
- 12 Apr 2004
- Research & Ideas
What Great American Leaders Teach Us
overall database. Tony Mayo, executive director of the Initiative, describes the project and what business leaders can take away from it in this interview. Sean Silverthorne: Can you describe the genesis and... View Details
Keywords: by Sean Silverthorne
- 21 Nov 2017
- First Look
First Look at New Research and Ideas, November 21, 2017
forthcoming Quantitative Marketing and Economics Aggregation of Consumer Ratings: An Application to Yelp.com By: Dai, Weijia, Ginger Jin, Jungmin Lee, and Michael View Details
Keywords: Sean Silverthorne
- 24 Apr 2018
- First Look
First Look at New Research and Ideas, April 24, 2018
April 2018 Management Science Offline Showrooms in Omni-channel Retail: Demand and Operational Benefits By: Bell, David R., Santiago Gallino, and Antonio Moreno Abstract—Omnichannel environments where... View Details
Keywords: Sean Silverthorne
- 2013
- Working Paper
What Makes a Critic Tick? Connected Authors and the Determinants of Book Reviews
By: Loretti I. Dobrescu, Michael Luca and Alberto Motta
This paper investigates the determinants of expert reviews in the book industry. Reviews are determined not only by the quality of the product, but also by the incentives of the media outlet providing the review. For example, a media outlet may have the incentive to... View Details
Dobrescu, Loretti I., Michael Luca, and Alberto Motta. "What Makes a Critic Tick? Connected Authors and the Determinants of Book Reviews." Harvard Business School Working Paper, No. 12-080, March 2012. (Revise and Resubmit, Journal of Economic Behavior & Organization; Revised August 2013.)
- July 2021
- Article
The Effect of Price on Firm Reputation
By: Michael Luca and Oren Reshef
While a business's reputation can affect its pricing, prices can also affect its reputation. To explore the effect of prices on reputation, we investigate daily data on menu prices and online ratings from a large rating and ordering platform. We find that a price... View Details
Keywords: Pricing; Reputation Systems; IT Policy And Management; Economics Of Digital Platforms; Business Ventures; Reputation; Price; Consumer Behavior; Analysis
Luca, Michael, and Oren Reshef. "The Effect of Price on Firm Reputation." Management Science 67, no. 7 (July 2021): 4408–4419.
- 02 Aug 2020
- What Do You Think?
Is the 'Experimentation Organization' Becoming the Competitive Gold Standard?
level. Their work has been both influenced by and reported recently by several academics. Harvard Business School professors Michael View Details
- 30 Jun 2021
- In Practice
The Harvard Business School Faculty Summer Reader 2021
years—so one can keep hoping! Karim Lakhani (@klakhani) is the Dorothy & Michael Hintze Professor of Business Administration and co-director of the Laboratory for Innovation Science at Harvard. George... View Details
Keywords: by Kathryn Haviland
- 06 Feb 2018
- First Look
First Look at New Research and Ideas: February 6, 2018
workers; and the production of knowledge, including the idea of the economy, among other topics. Together, the essays suggest emerging themes in the field: a fascination with capitalism as it is made by... View Details
- January 17, 2018
- Other Article
Using Traditional and Digital Data Sources Together in Economic Research
By: Edward L. Glaeser, Hyunjin Kim and Michael Luca
Glaeser, Edward L., Hyunjin Kim, and Michael Luca. "Using Traditional and Digital Data Sources Together in Economic Research." Vox, CEPR Policy Portal (January 17, 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... View Details
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.
- June, 2021
- Article
Learning from Deregulation: The Asymmetric Impact of Lockdown and Reopening on Risky Behavior During COVID-19
By: Edward L. Glaeser, Ginger Zhe Jin, Benjamin T. Leyden and Michael Luca
During the COVID-19 pandemic, states issued and then rescinded stay-at-home orders that restricted mobility. We develop a model of learning by deregulation, which predicts that lifting stay-at-home orders can signal that going out has become safer. Using restaurant... View Details
Keywords: COVID-19; Lockdown; Reopening; Impact; Coronavirus; Public Health Measures; Mobility; Health Pandemics; Governing Rules, Regulations, and Reforms; Consumer Behavior
Glaeser, Edward L., Ginger Zhe Jin, Benjamin T. Leyden, and Michael Luca. "Learning from Deregulation: The Asymmetric Impact of Lockdown and Reopening on Risky Behavior During COVID-19." Journal of Regional Science 61, no. 4 (June, 2021): 696–709.
- 21 Jan 2014
- First Look
First Look: January 21
Benjamin G., and Michael Luca Abstract—Online marketplaces often contain information not only about products, but also about the people selling the products. In an effort to... View Details
Keywords: Sean Silverthorne
- 05 Jul 2016
- First Look
July 5, 2016
July–August 2016 Harvard Business Review Beyond the Holacracy Hype: The Overwrought Claims—and Actual Promise—of the Next Generation of Self-Managed Teams By: Bernstein, Ethan, John Bunch, Niko Canner, and View Details
Keywords: Sean Silverthorne
- 08 Dec 2015
- First Look
December 8, 2015
create value by introducing visual transparency between consumers and producers. Although operational transparency has been shown to improve consumer perceptions of service value, existing theory posits that... View Details
Keywords: Sean Silverthorne