Publications

24 Oct 2011
Research & Ideas

The Yelp Factor: Are Consumer Reviews Good for Business?

In recent years, consumer review sites including Yelp, Citysearch, and TripAdvisor have become the first stop for recommendations on everything from dinner to dentists. Along the way, they've earned a loyal following from fans, but also... View Details

Keywords: by Michael Blanding; Food & Beverage

Research Summary

Consumer Response to Online Ratings and Recommendations

Jolie is currently conducting several laboratory and field experiments to assess the tendency of individuals to employ predictable heuristics in complex information aggregation tasks, thus leading to search and choice behavior that is suboptimal relative to the fully... View Details

September 2006
Tutorial

Management Control Process - Online Tutorial

By: David F. Hawkins

Introduces the Management Control Process by detailing its six components: 1) the management control environment, 2) organizational structure and responsibilities, 3) information and communication, 4) management control systems, 5) incentives, and 6) monitoring.... View Details

Keywords: Communication; Information; Business or Company Management; Management Practices and Processes; Organizations; Mission and Purpose; Organizational Structure; Behavior; Motivation and Incentives; System

September 2006
Tutorial

Internal Control Process - Online Tutorial

By: David F. Hawkins

Introduces the Internal Control Process by detailing its five components: 1) the internal control environment, 2) risk assessment, 3) internal control activities, 4) information and communications, and 5) monitoring. Includes multiple review exercises throughout the... View Details

Keywords: Accounting; Communication; Assets; Governance Compliance; Governance Controls; Policy; Information; Code Law; Risk Management; System; Online Technology

2022
Working Paper

Getting on the Map: The Impact of Online Listings on Business Performance

By: Michael Luca, Abhishek Nagaraj and Gauri Subramani

We evaluate the extent to which small businesses maintain an online presence, looking at restaurant listings on a major online review platform. While the majority of restaurants have an online presence, we find that roughly 18 percent in our sample have no presence as... View Details

Keywords: Small Business; Internet and the Web; Revenue; Digital Marketing; Food and Beverage Industry

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... View Details

Keywords: Online Reviews; Product Ratings; Social Networks; Word Of Mouth; Pricing; User-generated Content; Advertising; Product Marketing; Price; Consumer Behavior; Product Positioning; Social Media

Find at Harvard

28 Jul 2020
Research & Ideas

Racism and Digital Design: How Online Platforms Can Thwart Discrimination

Having uncovered the scope of discrimination taking place against Black guests and hosts on Airbnb, researcher Michael Luca and his colleagues put together a toolkit to aid managers in recognizing and mitigating discrimination on online... View Details

Keywords: by Kristen Senz; Travel; Entertainment & Recreation; Service

July, 2024
Article

Consumer Protection in an Online World: An Analysis of Occupational Licensing

By: Chiara Farronato, Andrey Fradkin, Bradley Larsen and Erik Brynjolfsson

We study the demand and supply implications of occupational licensing using transaction-level data from a large online platform for home improvement services. We find that demand is more responsive to a professional's reviews than to the professional's... View Details

Keywords: Occupational Licensing; Consumer Protection; Perception; Experience and Expertise; Public Opinion; Governing Rules, Regulations, and Reforms; Demand and Consumers

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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. View Details

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

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. View Details

Keywords: Search Engines; Google; Online Advertising; Internet and the Web; Network Effects; Business Model; Competition; Digital Marketing; Information Technology Industry; Advertising Industry

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. View Details

Keywords: Search Engines; Google; Online Advertising; Internet and the Web; Network Effects; Business Model; Competition; Information Technology Industry; Advertising Industry

2016
Working Paper

Reviews, Reputation, and Revenue: The Case of Yelp.com

By: Michael Luca

Do online consumer reviews affect restaurant demand? I investigate this question using a novel dataset combining reviews from the website Yelp.com and restaurant data from the Washington State Department of Revenue. Because Yelp prominently displays a restaurant's... View Details

Keywords: Revenue; Network Effects; Reputation; Social and Collaborative Networks; Food and Beverage Industry; Service Industry; Washington (state, US)

SSRN

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10 Mar 2016
Cold Call Podcast

For Today’s Travel Businesses, Is It TripAdvisor or Bust?

07 Jun 2016
First Look

June 7, 2016

likelihood of meeting or beating analyst expectations. Collectively the results shed light on the effect of increased ownership concentration on tax avoidance. Publisher's link: https://www.hbs.edu/faculty/Pages/item.aspx?num=51123 June 2016 Service Science... View Details

Keywords: Sean Silverthorne

2023
Working Paper

The Benefits of Revealing Race: Evidence from Minority-owned Local Businesses

By: Abhay Aneja, Michael Luca and Oren Reshef

Is there latent demand to support Black-owned businesses? To explore, we analyze a new feature that made it easier to identify Black-owned restaurants on a large online platform. We find that labeling restaurants as “Black-owned” increased customer engagement and... View Details

Keywords: Black-owned Businesses; Race; Prejudice and Bias; Ownership; Knowledge Dissemination; Digital Platforms; Consumer Behavior; Food and Beverage Industry

SSRN

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07 Nov 2023
Research & Ideas

When Glasses Land the Gig: Employers Still Choose Workers Who 'Look the Part'

Seeking a programming gig? Wear glasses and keep your laptop in frame if you want your profile picture to attract recruiters on hiring platforms. A new study finds freelancers are more likely to land work when they “look the part” for a particular job. But, as... View Details

Keywords: by Scott Van Voorhis

Research Summary

Overview

By: Isamar Troncoso

Professor Troncoso's research explores problems related to digital marketplaces and AI applications in marketing, and combines toolkits from econometrics, causal inference, and machine learning. She has studied how different platform design choices can lead to... View Details

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... View Details

Keywords: Change Management; Trends; Leading Change; Operations; Organizational Change and Adaptation; Performance; Technology; Construction Industry; United States