Publications
Publications
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- 2022
- Working Paper
Consumer Reviews and Regulation: Evidence from NYC Restaurants: Evidence from NYC Restaurants
By: Chiara Farronato and Georgios Zervas
We investigate the informativeness of hygiene signals in online reviews, and their effect on consumer choice and restaurant hygiene. We first extract signals of hygiene from Yelp. Among all dimensions that regulators monitor through mandated restaurant inspections, we...
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- November 2021
- Article
Ratings, Reviews, and the Marketing of New Products
By: Itay P. Fainmesser, Dominique Olié Lauga and Elie Ofek
We study how user-generated content (UGC) about new products impacts a firm's advertising and pricing decisions and the effect on profits and market dynamics. We construct a two-period model where consumers value quality and are heterogeneous in their taste for the new...
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- March 2021
- Case
The U.S. Home Improvement Sector in 2020
By: José Alvarez and David Lane
Provides an overview of the U.S. home improvement sector in 2020, reviewing sources of growth in the decade ending in 2020, with special attention to the impact of COVID-19 on market leaders Home Depot and Lowe’s and the spike in online revenues for both. Also noted...
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- April 2020
- Article
Collective Emotions
By: Amit Goldenberg, David Garcia, Eran Halperin and James J. Gross
When analyzing situations in which multiple people are experiencing emotions together—whether the emotions are positive or negative and whether the situations are online or offline—we are intuitively drawn to the emotions of each individual in the situation. However,...
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- March 2020
- Case
Thingtesting: Launching a Brand Discovery and Testing Digital Community
By: Ayelet Israeli and Jill Avery
Thingtesting, a brand discovery and testing digital community devoted to uncovering and exploring direct-to-consumer brands, had just received seed funding and was contemplating a second year of growth. The new year brought many challenges, as founder Jenny Gyllander...
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Keywords:
Influencer Marketing;
Monetization;
Female Ceo;
Female Entrepreneur;
Female Protagonist;
Influencers;
Influencer;
Direct-to-consumer;
Marketing;
Brands and Branding;
Marketing Strategy;
Venture Capital;
Entrepreneurship;
Marketing Communications;
Consumer Products Industry;
Financial Services Industry;
Advertising Industry;
London;
United Kingdom;
United States;
Europe;
North America
- 2020
- Working Paper
Consumer Protection in an Online World: An Analysis of Occupational Licensing
By: Chiara Farronato, Andrey Fradkin, Bradley Larsen and Erik Brynjolfsson
We study the effects of occupational licensing on consumer choices and market outcomes in a large online platform for residential home services. We exploit exogenous variation in the time at which licenses are displayed on the platform to identify the causal effects of...
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- 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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- 2017
- Working Paper
Nowcasting the Local Economy: Using Yelp Data to Measure Economic Activity
By: Edward L. Glaeser, Hyunjin Kim and Michael Luca
Can new data sources from online platforms help to measure local economic activity? Government datasets from agencies such as the U.S. Census Bureau provide the standard measures of economic activity at the local level. However, these statistics typically appear only...
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- November 2016 (Revised May 2017)
- Case
The Black List
By: Henry McGee and Sarah McAra
Franklin Leonard founded The Black List in 2005 as an innovative approach to identifying potential hit movie scripts via crowdsourcing. As the annual Black List proved to hold the scripts of some of Hollywood’s most successful films, from “Slumdog Millionaire” to...
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- 2016
- Working Paper
Effectiveness of Paid Search Advertising: Experimental Evidence
By: Weijia (Daisy) Dai and Michael Luca
Paid search has become an increasingly common form of advertising, comprising about half of all online advertising expenditures. To shed light on the effectiveness of paid search, we design and analyze a large-scale field experiment on the review platform Yelp.com. The...
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- September 21, 2016
- Article
For Better Online Product Reviews, Pay the Reviewers
- June 2016
- Article
Understanding Online Hotel Reviews Through Automated Text Analysis
By: Shawn Mankad, Hyunjeong "Spring" Han, Joel Goh and Srinagesh Gavirneni
Customer reviews submitted at Internet travel portals are an important yet underexplored new resource in obtaining feedback on customer experience for the hospitality industry. These data are often voluminous and unstructured, presenting analytical challenges for...
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- Other Article
Online Discounting: Who is Leading the Race to the Bottom?
By: Ayelet Israeli, Eric Anderson and Anne Coughlan
A short review of the finidings in: Israeli, Ayelet, Eric Anderson, and Anne Coughlan. "Minimum Advertised Pricing: Patterns of Violation in Competitive Retail Markets." Marketing Science 35, no. 4 (July–August 2016): 539–564.
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Keywords:
Pricing;
Price Policies;
Pricing Policies;
Discounting;
Retailing;
Retailing Industry;
Minimum Advertised Price;
Ecommerce;
E-Commerce Strategy;
Price;
Distribution Channels;
Distribution;
Digital Marketing;
E-commerce;
Retail Industry;
Technology Industry;
Advertising Industry;
United States
- August 2015
- Case
Yabbly (A)
By: Shikhar Ghosh and Christopher Payton
In November 2013, with less than 10 months of cash on hand, Tom Leung, the founder and CEO of Yabbly, must decide where to focus his resources. His startup, a question-and-answer application for shopping decisions, had benefited from a strong showing at the SXSW...
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- Article
Positioning Brands Against Large Competitors to Increase Sales
By: Neeru Paharia, Jill Avery and Anat Keinan
We explore the effect of having a large dominant competitor and show the conditions under which focusing on a competitive threat, rather than hiding it, can actually help a brand. We demonstrate through lab and field studies that highlighting a large competitor's size...
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- September 2014 (Revised June 2017)
- Case
Google Inc. in 2014
By: Benjamin Edelman and Thomas R. Eisenmann
Describes Google's history, business model, governance structure, corporate culture, and processes for managing innovation. Reviews Google's recent strategic initiatives and the threats they pose to selected competitors. Asks what Google should do next.
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- September 2014
- Case
Google Inc. in 2014 (Abridged)
By: Benjamin Edelman and Thomas R. Eisenmann
Describes Google's history, business model, governance structure, corporate culture, and processes for managing innovation. Reviews Google's recent strategic initiatives and the threats they pose to Yahoo, Microsoft, and others. Asks what Google should do next.
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- 2014
- Article
Drivers and Dynamics of Online Word of Mouth
By: Frank Nagle and Christoph Riedl
- 2013
- Article
Where Not to Eat? Improving Public Policy by Predicting Hygiene Inspections Using Online Reviews
By: Jun Seok Kang, Polina Kuznetsova, Yejin Choi and Michael Luca
Restaurant hygiene inspections are often cited as a success story of public disclosure. Hygiene grades influence customer decisions and serve as an accountability system for restaurants. However, cities (which are responsible for inspections) have limited resources to...
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- 2015
- Working Paper
Online Word of Mouth and Product Review Disagreement
By: Frank Nagle and Christoph Riedl
Studies of online word of mouth have frequently posited―but never systematically conceptualized and explored―that the level of disagreement between existing product reviews can impact the volume and the valence of future reviews. In this study we develop a theoretical...
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