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Article

Testing Substitutability

By: John William Hatfield, Nicole Immorlica and Scott Duke Kominers

We provide an algorithm for testing the substitutability of a length-N preference relation over a set of contracts X in time O(|X|3⋅N3). Access to the preference relation is essential for this result: We show that a substitutability-testing algorithm with access only... View Details

Keywords: Substitutability; Matching; Communication Complexity; Preference Elicitation; Marketplace Matching; Communication; Mathematical Methods; Economics

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2009
Chapter

The Effects of a Central Clearinghouse on Job Placement, Wages, and Hiring Practices

By: Muriel Niederle and Alvin E. Roth

New gastroenterologists participated in a labor market clearinghouse (a "match") from 1986 through the late 1990s, after which the match was abandoned. This provides an opportunity to study the effects of a match by observing the differences in the outcomes and... View Details

Keywords: Labor; Market Timing; Marketplace Matching; Failure

2009
Working Paper

Unraveling Results from Comparable Demand and Supply: An Experimental Investigation

By: Muriel Niederle, Alvin E. Roth and M. Utku Unver

Markets sometimes unravel, with offers becoming inefficiently early. Often this is attributed to competition arising from an imbalance of demand and supply, typically excess demand for workers. However this presents a puzzle, since unraveling can only occur when firms... View Details

Keywords: Labor; Marketplace Matching; Quality; Competition; Balance and Stability

December 2018
Article

Reserve Design: Unintended Consequences and the Demise of Boston's Walk Zones

By: Umut Dur, Scott Duke Kominers, Parag A. Pathak and Tayfun Sönmez

Admissions policies often use reserves to grant certain applicants higher priority for some (but not all) available seats. Boston’s school choice system, for example, reserved half of each school’s seats for local neighborhood applicants while leaving the other half... View Details

Keywords: Neighborhoods; Equal Access; School Choice; Affirmative Action; Desegregation; Marketplace Matching; Fairness; Local Range; Education; Policy

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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

2009
Working Paper

Smith and Rawls Share a Room: Stability and Medians

By: Bettina-Elisabeth Klaus and Flip Klijn

We consider one-to-one, one-sided matching (roommate) problems in which agents can either be matched as pairs or remain single. We introduce a so-called bi-choice graph for each pair of stable matchings and characterize its structure. Exploiting this structure we... View Details

Keywords: Fairness; One-Sided Platforms; Two-Sided Platforms; Marketplace Matching; Mathematical Methods; Balance and Stability

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

June 1993 (Revised July 1996)
Case

Bajaj Auto Ltd.

By: John A. Quelch

Bajaj Auto Ltd., the world's second-largest manufacturer of two- and three-wheeler vehicles, is facing increasing competition in its domestic Indian market. The case evaluates appropriate marketing responses both in the Indian market and export markets. View Details

Keywords: Competition; Marketplace Matching; Product Development; Product Marketing; Transportation Industry; Manufacturing Industry; Auto Industry; India

January 2021 (Revised March 2022)
Case

Brigad: The Future of Work

By: Nien-he Hsieh, Elena Corsi and Daniela Beyersdorfer

In 2019 Florent Malbranche, CEO and co-founder of the French tech startup Brigad, pondered the next growth steps. Founded in 2015, Brigad’s objective was two-fold: to help restaurants and bars find qualified staff for punctual shifts, and to make it easier for... View Details

Keywords: Platform Business; Gig Economy; Regulation; Entrepreneurship; Marketplace Matching; Growth and Development Strategy

November 2017
Case

Poppy: A Modern Village for Childcare

By: Thomas Eisenmann and Jeff Huizinga

In 2017, management at Poppy, which matched families that required occasional childcare with thoroughly vetted caregivers, was formulating plans for the Seattle-based seed-stage startup’s next phase of expansion. One option was to grow using the same business model... View Details

Keywords: Entrepreneurship; Market Design; Multi-Sided Platforms; Marketplace Matching; Expansion; United States

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

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Article

Analyzing Scrip Systems

By: Kris Johnson, David Simchi-Levi and Peng Sun

Scrip systems provide a nonmonetary trade economy for exchange of resources. We model a scrip system as a stochastic game and study system design issues on selection rules to match potential trade partners over time. We show the optimality of one particular rule in... View Details

Keywords: ＂Repeated Games＂; Stochastic Trust Game; Dynamic Program; P2P Lending; Scrip Systems; Artificial Currency; Non-monetary Trade Economies; Marketplace Matching; Currency; Operations; Game Theory

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01 Oct 1998
News

A Business World Gone Global

Today, even small firms dare to think globally and invest accordingly - closing deals in Dubai has become almost as commonplace as doing business in Dubuque, thanks to quantum leaps in travel and transport, geopolitics, and communications. With the new global View Details

2014
Working Paper

Hidden Substitutes

By: John William Hatfield and Scott Duke Kominers

In this paper, we show that preferences exhibiting some forms of complementarity in fact have an underlying substitutable structure. Specifically, we show that some preferences that are not substitutable in the setting of many-to-one matching with contracts become... View Details

Keywords: Many-to-One Matching; Many-to-Many Matching; Stability; Substitutes; Matching With Contracts; Slot-Specific Priorities; Sherlock; Market Design; Contracts; Marketplace Matching; Balance and Stability

Richard M. Schulze

Schulze transformed his small Sound of Music electronic store into an electronics retailing giant – Best Buy. Schulze introduced mass-merchandising techniques to the electronics marketplace and helped to transform the shopping process... View Details

Keywords: Retail

2011
Working Paper

Better-reply Dynamics in Deferred Acceptance Games

In this paper we address the question of learning in a two-sided matching mechanism that utilizes the deferred acceptance algorithm. We consider a repeated matching game where at each period agents observe their match and have the opportunity to revise their strategy... View Details

Keywords: Learning; Marketplace Matching; Outcome or Result; Game Theory; Mathematical Methods; Strategy

01 Dec 2017
News

Case Study: The Doctor Deficit

that today’s nurse shortage could reach 1.2 million vacancies in the same time frame. Alexi Nazem (MBA 2011) has seen the impact of these shortages firsthand. “Health care is a very broken system,” says the doctor and cofounder of Nomad Health, an online View Details

Keywords: April White

19 Oct 2023
Blog Post

New Venture Competition 2023: Business and Environment Ventures

manufacturing approach. Concentro - Inigo Rengifo Melia (MBA 2023) - Concentro aims to become a tech-enabled marketplace for tax credits (starting with renewables' ITCs), providing the technology to allow tax credits' transfers and a... View Details

2008
Working Paper

Stability and Nash Implementation in Matching Markets with Couples

By: Claus-Jochen Haake and Bettina-Elisabeth Klaus

We consider two-sided matching markets with couples. First, we extend a result by Klaus and Klijn (2005, Theorem 3.3) and show that for any weakly responsive couples market there always exists a "double stable" matching, i.e., a matching that is stable for the couples... View Details

Keywords: Marketplace Matching; Balance and Stability; Game Theory

Joseph I. Miller

Under Miller’s direction, Cummins Engine was transformed from a small domestic engine producer to the largest provider of diesel truck engines in the world. He dramatically expanded the company’s presence in the international marketplace... View Details

Keywords: Fabricated Goods

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