Publications

Find at Harvard

16 May 2012
News

Amazon consumer book reviews as reliable as media experts

24 Oct 2011
News

The Yelp Factor: Are Consumer Reviews Good for Business?

November 2017 (Revised October 2018)
Case

Brandless: Disrupting Consumer Packaged Goods

By: Jill Avery

Brandless, an online direct-to-consumer seller of upscale private-label consumer packaged goods, offered consumers a limited assortment of values-conscious products delivered directly to their homes with the simplicity of one fixed $3 price point that promised an... View Details

Research Summary

Crowdsourced reviews

To determine whether online consumer reviews influence the way that reputation is formed, Professor Luca has combined reviews from the website Yelp.com with public restaurant data. He has shown that a one-star increase in Yelp ratings results in a 5- to 9-percent... View Details

03 Nov 2015
News

6 Clues That an Online Review Might Be Fake

23 Sep 2013
News

That Online Review May Really Be Too Good to Be True

September 21, 2016
Article

For Better Online Product Reviews, Pay the Reviewers

By: Scott Duke Kominers

23 Jun 2015
News

Navigating the potentially murky world of online reviews

13 Apr 2016
News

Consumer Reports in the Age of the Amazon Review

03 Aug 2013
News

Bed Bugs, Bad Service Begone, Thanks to Online Reviews

July 7, 2022
Other Article

Are Online Prices Higher Because of Pricing Algorithms?

By: Zach Y. Brown and Alexander J. MacKay

This article reviews recent work examining pricing strategies of major online retailers and the potential effects of pricing algorithms. We describe how pricing algorithms can lead to higher prices in a number of ways, even if some characteristics of these algorithms... View Details

Keywords: Pricing Algorithms; Online Marketplace; Digital Strategy; Internet and the Web; Retail Industry

Research Summary

The limits of reviews

Consumer reviews are an important source of information in the digital age. Yet there are limits to the role that reviews can play. In a case study, Professor Luca discusses the limits of reviews and how companies can create more comprehensive reputation systems... View Details

2021
Article

Consumer Disclosure

By: Tami Kim, Kate Barasz and Leslie John

As technological advances enable consumers to share more information in unprecedented ways, today’s disclosure takes on a variety of new forms, triggering a paradigm shift in what “disclosure” entails. This review introduces two factors to conceptualize consumer... View Details

Keywords: Disclosure; Passive Disclosure; Information; Internet and the Web; Consumer Behavior; Situation or Environment

June 2025
Article

Who Benefits from Online Gig Economy Platforms?

By: Christopher T. Stanton and Catherine Thomas

Online labor platforms for short-term, remote work have many more job seekers than available jobs. Despite their relative abundance, workers capture a substantial share of the surplus from transactions. We draw this conclusion from demand estimates that imply workers'... View Details

Keywords: Gig Economy; Knowledge Workers; Online Platforms; Job Search; Governing Rules, Regulations, and Reforms; Wages; Demand and Consumers

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... View Details

Keywords: Startup; Mobile; Online Product Reviews; Consumer Products; Business Model; Business Plan; Business Startups; Entrepreneurship; Innovation Strategy; Mobile and Wireless Technology; Internet and the Web; North America; United States; Washington (state, US); Seattle

December 2000
Background Note

Online Portals

By: Thomas R. Eisenmann and Sanjay Pothen

Describes the online portal business model. Analyzes the model, focusing on the tactics used to acquire new users, turn new users into repeat visitors, and monetize user traffic. Explains portals' revenue and cost drivers and their implications for pursuing aggressive... View Details

Keywords: Business Model; Web Services Industry

December 2000
Background Note

Online Retailers

By: Thomas R. Eisenmann and Alastair Brown

Describes online retailers, companies that use the Internet to sell physical goods. Defines online retailers and describes different ways to categorize them. Explores their economic model and value proposition for consumers in comparison with offline retailers. Next,... View Details

Keywords: Business Model; Internet; Retail Industry