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    • News  (94)
    • Research  (153)
    • Multimedia  (2)
  • Faculty Publications  (58)

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  • All HBS Web  (295)
    • News  (94)
    • Research  (153)
    • Multimedia  (2)
  • Faculty Publications  (58)
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  • January 2015 (Revised April 2018)
  • Case

CJ E&M: Creating a K-Culture in the U.S.

By: Elie Ofek, Sang-Hoon Kim and Michael Norris
Buoyed by the success of K-pop music and K-drama television shows in Asian countries, Chairman Jay Lee, of the South Korean conglomerate CJ Group, believed that the time was ripe for taking Korean cultural content to the West. One initiative, carried out by the Group's... View Details
Keywords: Cultural Consumption; Media Businesses; International Marketing; Event Marketing; Creative Industries; Cross-cultural Adaptation; Ethnic Marketing; South Korea; Marketing Strategy; Entertainment; Global Strategy; Cross-Cultural and Cross-Border Issues; Entertainment and Recreation Industry; United States; South Korea
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Ofek, Elie, Sang-Hoon Kim, and Michael Norris. "CJ E&M: Creating a K-Culture in the U.S." Harvard Business School Case 515-015, January 2015. (Revised April 2018.)
  • 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
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Luca, Dara Lee, and Michael Luca. "Survival of the Fittest: The Impact of the Minimum Wage on Firm Exit." Harvard Business School Working Paper, No. 17-088, April 2017. (Revised August 2018.)
  • 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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Donaker, Geoff, Hyunjin Kim, and Michael Luca. "Designing Better Online Review Systems." Harvard Business Review 97, no. 6 (November–December 2019): 122–129.
  • 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
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Luca, Michael, Weijia Dai, and Hyunjin Kim. "Advertising Experiments at RestaurantGrades." Harvard Business School Exercise 916-038, March 2016. (Revised February 2023.)
  • 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
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Dai, Weijia, Ginger Jin, Jungmin Lee, and Michael Luca. "Aggregation of Consumer Ratings: An Application to Yelp.com." Quantitative Marketing and Economics 16, no. 3 (September 2018): 289–339.
  • 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
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Glaeser, Edward L., Hyunjin Kim, and Michael Luca. "Nowcasting the Local Economy: Using Yelp Data to Measure Economic Activity." Harvard Business School Working Paper, No. 18-022, September 2017. (Revised October 2017.)
  • 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
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Luca, Michael, Scott Stern, Devin Cook, and Hyunjin Kim. "Racial Discrimination on Airbnb (A)." Harvard Business School Case 920-051, March 2020. (Revised August 2022.)
  • 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
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Dai, Weijia (Daisy), and Michael Luca. "Digitizing Disclosure: The Case of Restaurant Hygiene Scores." American Economic Journal: Microeconomics 12, no. 2 (May 2020): 41–59.
  • 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
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Porter, Michael E., Scott S. Lee, Joseph Rhatigan, and Jim Yong Kim. "Partners In Health: HIV Care in Rwanda." Harvard Business School Case 709-474, April 2009. (Revised May 2010.)
  • 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
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Dai, Weijia, Hyunjin Kim, and Michael Luca. "Advertising Experiments at RestaurantGrades." Harvard Business School Spreadsheet Supplement 916-702, March 2016.
  • 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
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Luca, Michael, and Jesse M. Shapiro. "Shanty Real Estate: Teaching Note Supplement." Harvard Business School Spreadsheet Supplement 923-715, February 2023. (Revised March 2024.)
  • 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
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Luca, Michael, and Patrick Rooney. "Behavioural Insights Team (B)." Harvard Business School Supplement 915-025, March 2015. (Revised January 2020.)
  • 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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Luca, Michael, and Amy C. Edmondson. "Where Data-Driven Decision-Making Can Go Wrong." Harvard Business Review 102, no. 5 (September–October 2024): 80–89.
  • 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
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Luca, Michael, and Jonathan Smith. "Strategic Disclosure: The Case of Business School Rankings." Journal of Economic Behavior & Organization 112 (April 2015): 17–25.
  • 07 Feb 2017
  • First Look

First Look at New Research: February 7

Prithwiraj, and Do Yoon Kim Abstract—We study the role of ethnic Chinese/Indian migrant inventors in transferring contextual knowledge across borders and the role of ethnic... View Details
Keywords: Sean Silverthorne
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