Publications

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

Keywords: Dominant Individual Rationality; Market Design; Safety

SSRN

Article

An Invitation to Market Design

By: Scott Duke Kominers, Alexander Teytelboym and Vincent P. Crawford

Market design seeks to translate economic theory and analysis into practical solutions to real-world problems. By redesigning both the rules that guide market transactions and the infrastructure that enables those transactions to take place, market designers can... View Details

Keywords: Matching; Trading; Scrip; Liquidity; Efficiency; Equity; Allocation Rules; Marketplaces; Market Design; Marketplace Matching; Auctions

January 2021 (Revised March 2022)
Teaching Note

Ureed.com: The Marketplace for Language

By: Ashley V. Whillans

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

Keywords: Language Translation; Freelancers; Remote Work; Entrepreneurship; Human Resources; Management; Motivation and Incentives; Job Design and Levels

20 Nov 2018
News

Building a Nonprofit Marketplace to Feed America

November, 2016
Article

Fixing Discrimination in Online Marketplaces

By: Ray Fisman and Michael Luca

Online marketplaces such as eBay, Uber, and Airbnb have the potential to reduce racial, gender, and other forms of bias that affect the off-line world. And in the early days of Internet commerce, the relative anonymity of transactions did make it harder for... View Details

Keywords: Prejudice and Bias; Digital Platforms; Internet and the Web; Race; Gender

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January 2017
Article

Contract Design and Stability in Many-to-Many Matching

By: John William Hatfield and Scott Duke Kominers

We develop a model of many-to-many matching with contracts that subsumes as special cases many-to-many matching markets and buyer/seller markets with heterogeneous and indivisible goods. In our setting, substitutable preferences are sufficient to guarantee the... View Details

Keywords: Many-to-Many Matching; Stability; Substitutes; Contract Design; Contracts; Marketplace Matching; Balance and Stability

08 Nov 2010
Research & Ideas

How to Fix a Broken Marketplace

work and how the parts fit together. We deal with much more complicated games than the game theory usually deals with." In short, Roth has determined that successful marketplaces require three key elements. "They must be thick,... View Details

Keywords: by Carmen Nobel; Health

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

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Article

The Market Design and Policy of Online Review Platforms

By: Benjamin Edelman

I present the institutions and incentives of online reviews, including attracting initial reviews, assuring truthful reviews of genuine experiences, and avoiding inflated or deceptive reviews. I also explore the competition and consumer protection concerns associated... View Details

Keywords: Reviews; Reputation; Platforms; Marketplaces; Deception; Market Design; Multi-Sided Platforms; Law; Online Technology; Information Technology Industry; Telecommunications Industry; Accommodations Industry; Retail Industry

April 2019 (Revised August 2020)
Case

Raksul

By: Scott Duke Kominers, Masahiro Kotosaka, Nobuo Sato and Akiko Kanno

Raksul, 2018 Forbes Japan "Startup of the Year," ran an e-commerce platform drawing upon thousands of individual suppliers. Launched as a business-to-business printing services marketplace, Raksul had recently expanded to operate both a logistics/delivery marketplace... View Details

Keywords: Marketplace Design; B2B; Platform Strategy; Printing; Entrepreneurship; Digital Platforms; Logistics; Advertising; Growth and Development Strategy; Industry Structures; E-commerce; Web Services Industry; Japan

October 2017
Case

Updating Dating

By: Thomas R. Eisenmann, Scott Duke Kominers and Alan Lam

To identify design ideas for their own startup, two MBAs compare the different profiling, matching, and monetization approaches employed by five incumbent dating services: Coffee Meets Bagel, OKCupid, Jiayuan, Dating Ring, and HurryDate. View Details

Keywords: Marketplace Design; Dating Services; Entrepreneurship; Market Design; United States; China

July 2018
Article

Marketplaces, Markets, and Market Design

By: Alvin E. Roth

Marketplaces are often small parts of large markets, and both markets and marketplaces come in many varieties. Market design seeks to understand what marketplaces must accomplish to enable different kinds of markets. Marketplaces can have varying degrees of success,... View Details

Keywords: Labor Market; Pricing; Market Design; Markets; Economics

2016
Working Paper

Markets for Ideas: Prize Structure, Entry Limits, and the Design of Ideation Contests

By: Pavel Kireyev

Contests are a popular mechanism for the procurement of innovation. In marketing, design, and other creative industries, firms use freelance marketplaces to organize contests and obtain high-quality ideas for ads, new products, and even business strategies from... View Details

Keywords: Idea Generation; Crowdsourcing; Contest Design; Structural Estimation; Motivation and Incentives; Competition; Innovation and Invention

SSRN

2016
Working Paper

Designing Online Marketplaces: Trust and Reputation Mechanisms

By: Michael Luca

Online marketplaces have proliferated over the past decade, creating new markets where none existed. By reducing transaction costs, online marketplaces facilitate transactions that otherwise would not have occurred and enable easier entry of small sellers. One central... View Details

Keywords: Trust; E-commerce; Market Design

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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

January 2018 (Revised February 2018)
Technical Note

Making Markets

By: Thomas R. Eisenmann and Scott Duke Kominers

Explains how to identify and capitalize on marketplace design opportunities. Defines markets and marketplaces and describes the basic functions of each. Discusses attributes (e.g., heterogeneity of participants' preferences and asymmetry in available information) that... View Details

Keywords: Marketplaces; Two-Sided Markets; Entrepreneurship; Market Design; Digital Platforms; Marketplace Matching; Market Participation; Market Transactions; Market Entry and Exit; Digital Platforms; Auctions

2008
Chapter

Matching and Market Design

By: Muriel Niederle, Alvin E. Roth and Tayfun Sonmez

Matching is the part of economics concerned with who transacts with whom and how. Models of matching, starting with the Gale-Shapley deferred acceptance algorithm, have been particularly useful in studying labour markets and in helping design clearinghouses to fix... View Details

Keywords: Market Design; Marketplace Matching; Outcome or Result; Mathematical Methods