Publications

Educators

2018
Working Paper

Survival of the Fittest: The Impact of the Minimum Wage on Firm Exit

By: Dara Lee Luca and Michael Luca

We study the impact of the minimum wage on firm exit in the restaurant industry, exploiting recent changes in the minimum wage at the city level. We find that the impact of the minimum wage depends on whether a restaurant was already close to the margin of exit.... View Details

Keywords: Wages; Business Exit or Shutdown; Food and Beverage Industry

SSRN

26 Mar 2013
First Look

First Look: March 26

Publications International Marketing Review Achievement Motivation, Strategic Orientations and Business Performance in Entrepreneurial Firms: How Different Are Japanese and American Founders? By:... View Details

Keywords: Sean Silverthorne

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... View Details

Keywords: Reviews; Internet and the Web; Design; Quality; Reputation

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March 2016 (Revised February 2023)
Exercise

Advertising Experiments at RestaurantGrades

By: Michael Luca, Weijia Dai and Hyunjin Kim

Advertising Experiments at RestaurantGrades is an exercise in which students are asked to analyze and make a recommendation on the basis of simulated experimental data. The setting is a hypothetical restaurant review company called RestaurantGrades (RG), which shows... View Details

Keywords: Analysis; Digital Marketing

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... View Details

Keywords: User Generated Content; Crowdsourcing; Yelp; Social and Collaborative Networks; Information; Internet and the Web; Learning; Mathematical Methods; E-commerce

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... View Details

Keywords: Economy; Analytics and Data Science; Local Range; Social and Collaborative Networks

SSRN

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... View Details

Keywords: Platform Design; Digital Platforms; Design; Prejudice and Bias; Trust; Problems and Challenges

Educators

28 Jun 2011
First Look

First Look: June 28

behavior-including charging large purchases with no clear business purpose to Cardio-Metric and presenting unrealistic financial projections to investors-but the CEO dismissed Kim's concerns and ordered him... View Details

Keywords: Sean Silverthorne

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... View Details

Keywords: Corporate Disclosure; Consumer Behavior; Knowledge Dissemination; Food and Beverage Industry

April 2009 (Revised May 2010)
Case

Partners In Health: HIV Care in Rwanda

By: Michael E. Porter, Scott S. Lee, Joseph Rhatigan and Jim Yong Kim

In 2005, Partners in Health (PIH) was invited by the Rwandan Ministry of Health to assume responsibility for the management of public health care in two rural districts in Eastern Rwanda and create an HIV treatment program at these sites. PIH successfully implemented a... View Details

Keywords: Developing Countries and Economies; Health Care and Treatment; Health Testing and Trials; Medical Specialties; Service Delivery; Nonprofit Organizations; Expansion; Health Industry; Rwanda

Educators

March 2016
Supplement

Advertising Experiments at RestaurantGrades

By: Weijia Dai, Hyunjin Kim and Michael Luca

This exercise provides students with a data set consisting of results from a hypothetical experiment, and asks students to make recommendations based on the data. Through this process, the exercise teaches students to analyze, design, and interpret experiments. The... View Details

Keywords: Experimental Methods; Analytics; Web Technology; Marketing; Digital Marketing; Analysis; Performance Effectiveness; Social Media

February 2023 (Revised March 2024)
Supplement

Shanty Real Estate: Teaching Note Supplement

By: Michael Luca and Jesse M. Shapiro

Shanty is a simulation in which students inhabit the role of either a traditional home buyer or an iBuyer, both bidding on the same condo. The traditional home buyer has access to a “comp sheet” of similar properties that have recently sold, and has done a walkthrough.... View Details

Keywords: Decision Choices and Conditions; Decision Making; Measurement and Metrics; Market Timing

11 Oct 2016
First Look

October 11, 2016

Ethan Porter, and Michael I. Norton Abstract—As Americans’ trust in government nears historic lows, frustration with government performance approaches record highs. We propose that Americans’ views of... View Details

Keywords: Sean Silverthorne

March 2015 (Revised January 2020)
Supplement

Behavioural Insights Team (B)

By: Michael Luca and Patrick Rooney

The Behavioural Insights Team case introduces students to the concept of choice architecture and the value of experimental methods (sometimes called A/B testing) within organizational contexts. The exercise provides an opportunity for students to apply these principles... View Details

Keywords: Behavioral Economics; Experiments; Choice Architecture; Public Entrepreneurship; United Kingdom

September–October 2024
Article

Where Data-Driven Decision-Making Can Go Wrong

By: Michael Luca and Amy C. Edmondson

When considering internal data or the results of a study, often business leaders either take the evidence presented as gospel or dismiss it altogether. Both approaches are misguided. What leaders need to do instead is conduct rigorous discussions that assess any... View Details

Keywords: Information; Analytics and Data Science; Analysis; Decision Making

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26 Jan 2016
First Look

January 26, 2016

worker productivity by using data from two important applications—police hiring and teacher tenure decisions. Publisher's link: https://www.hbs.edu/faculty/Pages/item.aspx?num=50430 December 2015 Current... View Details

Keywords: Sean Silverthorne

18 Nov 2014
First Look

First Look: November 18

subsequent growth into a diversified group. Download working paper: http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2520237 Optimal Aggregation of Consumer Ratings: An Application to Yelp.com By: Dai, Weijia, Ginger Jin, Jungmin Lee, View Details

Keywords: Sean Silverthorne

Article

Strategic Disclosure: The Case of Business School Rankings

By: Michael Luca and Jonathan Smith

We empirically analyze disclosure decisions made by 240 MBA programs about which rankings to display on their websites. We present three main findings. First, consistent with theories of countersignaling, top schools are least likely to disclose their rankings, whereas... View Details

Keywords: Voluntary Disclosure; Shrouded Attributes; Information Unraveling; Rankings; Higher Education; Corporate Disclosure; Rank and Position