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- January 11, 2024
- Article
Understanding the Tradeoffs of the Amazon Antitrust Case
By: Chiara Farronato, Andrey Fradkin, Andrei Hagiu and Dionne Lomax
Regulators in the United States and Europe have been taking on Big Tech, challenging what they say are the companies’ anti-competitive and predatory strategies that harm consumers and third-party users of their platforms. This article examines the FTC’s case against... View Details
Keywords: Monopoly; Governing Rules, Regulations, and Reforms; Market Design; Lawsuits and Litigation
Farronato, Chiara, Andrey Fradkin, Andrei Hagiu, and Dionne Lomax. "Understanding the Tradeoffs of the Amazon Antitrust Case." Harvard Business Review Digital Articles (January 11, 2024).
- 2023
- Working Paper
Market Design and Maintenance
By: Alvin E. Roth
Because no marketplace operates in isolation from the larger world, marketplace designs may need to adapt to changes in the larger environments. I discuss such changes in connection with the labor markets for new doctors, new Ph.D. economists, and for kidney exchange... View Details
Keywords: Market Design
Roth, Alvin E. "Market Design and Maintenance." NBER Working Paper Series, No. 31947, December 2023.
- June 2023
- Exercise
Clash of Two Giants Simulation Exercise Instructions
By: Feng Zhu and Marco Iansiti
Many markets are organized around platforms that connect consumers with complimentary applications and services. These platforms are two-sided because both sides - consumers and those providing applications or services - need access to the same platform to interact. A... View Details
Keywords: Platform Strategies; Technology Platform; Customer Acquisition; Network Effects; Digital Platforms; Marketplace Matching; Strategy
Zhu, Feng, and Marco Iansiti. "Clash of Two Giants Simulation Exercise Instructions." Harvard Business School Exercise 623-092, June 2023.
- March–April 2023
- Article
Market Segmentation Trees
By: Ali Aouad, Adam Elmachtoub, Kris J. Ferreira and Ryan McNellis
Problem definition: We seek to provide an interpretable framework for segmenting users in a population for personalized decision making. Methodology/results: We propose a general methodology, market segmentation trees (MSTs), for learning market... View Details
Keywords: Decision Trees; Computational Advertising; Market Segmentation; Analytics and Data Science; E-commerce; Consumer Behavior; Marketplace Matching; Marketing Channels; Digital Marketing
Aouad, Ali, Adam Elmachtoub, Kris J. Ferreira, and Ryan McNellis. "Market Segmentation Trees." Manufacturing & Service Operations Management 25, no. 2 (March–April 2023): 648–667.
- February 2024
- Article
An Economic Framework for Vaccine Prioritization
By: Mohammad Akbarpour, Eric Budish, Piotr Dworczak and Scott Duke Kominers
We propose an economic framework for determining the optimal allocation of a scarce supply of vaccines that become gradually available during a public health crisis, such as the Covid-19 pandemic. Agents differ in observable and unobservable characteristics, and the... View Details
Keywords: Vaccine; Fairness; Public Finance; Public Goods; Allocation Problems; Allocative Efficiency; Allocation Rules; Social Welfare; Pandemics; Inequality; COVID-19; COVID-19 Pandemic; Public Sector; Resource Allocation; Market Design; Marketplace Matching; Public Administration Industry
Akbarpour, Mohammad, Eric Budish, Piotr Dworczak, and Scott Duke Kominers. "An Economic Framework for Vaccine Prioritization." Quarterly Journal of Economics 139, no. 1 (February 2024): 359–417. (Authors' names are in certified random order.)
- August 2022
- Case
Meaningful Gigs
By: Brian Trelstad and Rachel Philbin
In October 2020, just a year after founding their company Meaningful Gigs, founders Ronnie Kwesi Coleman and Stephanie Nachemja-Burton prepared for a vital investment meeting with Rethink Education. They had already reached $400,000 in annually recurring revenue (ARR)... View Details
Keywords: Venture Capital; Growth and Development Strategy; Revenue; Education Industry; Technology Industry; Africa; United States
Trelstad, Brian, and Rachel Philbin. "Meaningful Gigs." Harvard Business School Case 323-006, August 2022.
- August 2022
- Case
SuperRare: Turning an NFT Marketplace into a DAO
By: Jeffrey J. Bussgang, Scott Duke Kominers and Amy Klopfenstein
In June 2021, John Crain and Jonathan Perkins, the founders of SuperRare, a marketplace for non-fungible tokens (NFTs), contemplate whether to transform their company into a decentralized autonomous organization (DAO). Crain and Perkins founded SuperRare in 2018 to... View Details
Keywords: NFTs; Crypto Economy; Alternative Assets; DAOs; Arts; Governance; Governance Controls; Governing Rules, Regulations, and Reforms; Information Technology; Technology Adoption; Internet and the Web; Digital Platforms; Innovation and Invention; Technological Innovation; Disruptive Innovation; Finance; Currency; Investment; Markets; Auctions; Bids and Bidding; Demand and Consumers; Network Effects; Market Design; Market Transactions; Market Timing; Web Services Industry; North and Central America; United States
Bussgang, Jeffrey J., Scott Duke Kominers, and Amy Klopfenstein. "SuperRare: Turning an NFT Marketplace into a DAO." Harvard Business School Case 823-027, August 2022.
- March 2022 (Revised August 2022)
- Case
Swvl: Smart Mobility for the Masses
By: Krishna Palepu, Esel Çekin and Menna Hassan
The case focuses on strategy and governance issues at Swvl, a tech-enabled mass mobility marketplace. It describes the journey of CEO and Chairman Mostafa Kandil on his journey from founding the company to its listing on Nasdaq. Since its founding in Egypt in 2017,... View Details
Keywords: Corporate Governance; Growth and Development Strategy; Initial Public Offering; Innovation and Invention; Business Startups; Transportation Industry; Technology Industry; Middle East; North Africa
Palepu, Krishna, Esel Çekin, and Menna Hassan. "Swvl: Smart Mobility for the Masses." Harvard Business School Case 122-097, March 2022. (Revised August 2022.)
- February 2022
- Case
NFX Capital and Moov Technologies
By: Scott Duke Kominers and Nicole Tempest Keller
In July 2019, James Currier, a general partner at San Francisco-based NFX Ventures, was considering a seed stage investment of $1.5 million in Moov Technologies, a B2B marketplace for used industrial equipment. NFX was a venture capital firm focused on seed-stage... View Details
Keywords: Venture Capital; Network Effects; Marketplace Matching; Digital Platforms; Market Design; Applications and Software; Semiconductor Industry; Financial Services Industry; San Francisco
Kominers, Scott Duke, and Nicole Tempest Keller. "NFX Capital and Moov Technologies." Harvard Business School Case 822-045, February 2022.
- 2021
- Working Paper
Deep Learning for Two-Sided Matching
By: Sai Srivatsa Ravindranatha, Zhe Feng, Shira Li, Jonathan Ma, Scott Duke Kominers and David Parkes
We initiate the use of a multi-layer neural network to model two-sided matching and to explore the design space between strategy-proofness and stability. It is well known that both properties cannot be achieved simultaneously but the efficient frontier in this design... View Details
Keywords: Strategy-proofness; Deep Learning; Two-Sided Platforms; Marketplace Matching; Balance and Stability
Srivatsa Ravindranatha, Sai, Zhe Feng, Shira Li, Jonathan Ma, Scott Duke Kominers, and David Parkes. "Deep Learning for Two-Sided Matching." Working Paper, July 2021.
- July 2021
- Article
Outsourcing Tasks Online: Matching Supply and Demand on Peer-to-Peer Internet Platforms
By: Zoë Cullen and Chiara Farronato
We study the growth of online peer-to-peer markets. Using data from TaskRabbit, an expanding marketplace for domestic tasks at the time of our study, we show that growth varies considerably across cities. To disentangle the potential drivers of growth, we look... View Details
Keywords: Two-sided Market; Two-sided Platforms; Peer-to-peer Markets; Platform Strategy; Sharing Economy; Platform Growth; Internet and the Web; Digital Platforms; Strategy; Market Design; Network Effects
Cullen, Zoë, and Chiara Farronato. "Outsourcing Tasks Online: Matching Supply and Demand on Peer-to-Peer Internet Platforms." Management Science 67, no. 7 (July 2021): 3985–4003.
- June 2021
- Article
Making Marketplaces Safe: Dominant Individual Rationality and Applications to Market Design
By: Benjamin N. Roth and Ran I. Shorrer
Often market designers cannot force agents to join a marketplace rather than using pre-existing institutions. We propose a new desideratum for marketplace design that guarantees the safety of participation: Dominant Individual Rationality (DIR). A marketplace is DIR if... View Details
Roth, Benjamin N., and Ran I. Shorrer. "Making Marketplaces Safe: Dominant Individual Rationality and Applications to Market Design." Management Science 67, no. 6 (June 2021).
- April 2021 (Revised July 2021)
- Case
StockX: The Stock Market of Things (Abridged)
By: Chiara Farronato, John J. Horton, Annelena Lobb and Julia Kelley
Founded in 2015 by Dan Gilbert, Josh Luber, and Greg Schwartz, StockX was an online platform where users could buy and sell unworn luxury and limited-edition sneakers. Sneaker resale prices often fluctuated over time based on supply and demand, creating a robust... View Details
Keywords: Markets; Auctions; Bids and Bidding; Demand and Consumers; Consumer Behavior; Analytics and Data Science; Market Design; Digital Platforms; Market Transactions; Marketplace Matching; Supply and Industry; Analysis; Price; Product Marketing; Product Launch; Apparel and Accessories Industry; Fashion Industry; North and Central America; United States; Michigan; Detroit
Farronato, Chiara, John J. Horton, Annelena Lobb, and Julia Kelley. "StockX: The Stock Market of Things (Abridged)." Harvard Business School Case 621-107, April 2021. (Revised July 2021.)
- March 2021 (Revised June 2021)
- Course Overview Note
Marketplace Design
Kominers, Scott Duke. "Marketplace Design." Harvard Business School Course Overview Note 821-068, March 2021. (Revised June 2021.)
- January 2021 (Revised March 2022)
- Teaching Note
Ureed.com: The Marketplace for Language
This case explores the growth of Ureed, an online marketplace for translation services that is powered by a workforce consisting of remote freelancers who are based in the United Arab Emirates. Nour Al Hassan, the founder and CEO faced the challenge of how best to... View Details
- January 2021 (Revised February 2021)
- Technical Note
A Three-Part Framework for Entrepreneurial Marketplace Design
Kominers, Scott Duke. "A Three-Part Framework for Entrepreneurial Marketplace Design." Harvard Business School Technical Note 821-065, January 2021. (Revised February 2021.)
- December 2020
- Article
The Parable of the Auctioneer: Complexity in Paul R. Milgrom's Discovering Prices
By: Scott Duke Kominers and Alexander Teytelboym
Designing marketplaces in complex settings requires both novel economic theory and real-world engineering, often drawing upon ideas from fields such as computer science and operations research. In Discovering Prices, Milgrom (2017) explains the theory and design... View Details
Kominers, Scott Duke, and Alexander Teytelboym. "The Parable of the Auctioneer: Complexity in Paul R. Milgrom's Discovering Prices." Journal of Economic Literature 58, no. 4 (December 2020): 1180–1196.
- February 2020 (Revised April 2021)
- Case
StockX: The Stock Market of Things
By: Chiara Farronato, John J. Horton, Annelena Lobb and Julia Kelley
Founded in 2015 by Dan Gilbert, Josh Luber, and Greg Schwartz, StockX was an online platform where users could buy and sell unworn luxury and limited-edition sneakers. Sneaker resale prices often fluctuated over time based on supply and demand, creating a robust... View Details
Keywords: Markets; Auctions; Bids and Bidding; Demand and Consumers; Consumer Behavior; Analytics and Data Science; Market Design; Digital Platforms; Market Transactions; Marketplace Matching; Supply and Industry; Analysis; Price; Product Marketing; Product Launch; Apparel and Accessories Industry; Fashion Industry; North and Central America; United States; Michigan; Detroit
Farronato, Chiara, John J. Horton, Annelena Lobb, and Julia Kelley. "StockX: The Stock Market of Things." Harvard Business School Case 620-062, February 2020. (Revised April 2021.)
- February 2020
- Article
Why Prosocial Referral Incentives Work: The Interplay of Reputational Benefits and Action Costs
By: Rachel Gershon, Cynthia Cryder and Leslie K. John
While selfish incentives typically outperform prosocial incentives, in the context of customer referral rewards, prosocial incentives can be more effective. Companies frequently offer “selfish” (i.e., sender-benefiting) referral incentives, offering customers financial... View Details
Keywords: Incentives; Prosocial Behavior; Judgment And Decision-making; Referral Rewards; Motivation and Incentives; Consumer Behavior; Decision Making
Gershon, Rachel, Cynthia Cryder, and Leslie K. John. "Why Prosocial Referral Incentives Work: The Interplay of Reputational Benefits and Action Costs." Journal of Marketing Research (JMR) 57, no. 1 (February 2020): 156–172.
- January 2020
- Case
Lunchclub: Algorithmic Networking
By: Scott Duke Kominers and George Gonzalez
Algorithmic networking startup Lunchclub coordinates in-person meetings between professionals who would have been unlikely to meet. The company faces marketplace design, growth, and monetization challenges: The executive team has to refine Lunchclub's marketplace... View Details
Keywords: Monetization Strategy; Networking; Business Startups; Marketplace Matching; Market Design; Growth and Development Strategy; Information Industry
Kominers, Scott Duke, and George Gonzalez. "Lunchclub: Algorithmic Networking." Harvard Business School Case 820-051, January 2020.