Publications

May 2021
Article

Stability, Strategy-Proofness, and Cumulative Offer Mechanisms

By: John William Hatfield, Scott Duke Kominers and Alexander Westkamp

We consider the setting of many-to-one matching with contracts, where firms may demand multiple contracts, but each worker desires at most one contract. We introduce three novel conditions—observable substitutability, observable size monotonicity, and... View Details

Keywords: Matching With Contracts; Stability; Strategy-proofness; Substitutability; Size Monotonicity; Cumulative Offer Mechanism; Marketplace Matching; Balance and Stability

2015
Working Paper

Stability, Strategy-Proofness, and Cumulative Offer Mechanisms

By: John William Hatfield, Scott Duke Kominers and Alexander Westkamp

We consider the setting of many-to-one matching with contracts, where firms may demand multiple contracts but each worker desires at most one contract. We introduce three novel conditions—observable substitutability, observable size monotonicity,... View Details

Keywords: Matching With Contracts; Stability; Strategy-proofness; Substitutability; Size Monotonicity; Cumulative Offer Mechanism; Contracts; Market Design; Marketplace Matching; Balance and Stability

11 Dec 2008
Working Paper Summaries

Quality Management and Job Quality: How the ISO 9001 Standard for Quality Management Systems Affects Employees and Employers

Keywords: by David I. Levine & Michael W. Toffel

November 2024 (Revised January 2025)
Case

MiDAS: Automating Unemployment Benefits

By: Shikhar Ghosh and Shweta Bagai

In 2015, the state of Michigan considered whether to nominate its Michigan Integrated Data Automated System (MiDAS) for a prestigious state technology award. Launched in 2013 amid severe budget pressures, the $47 million automated fraud detection system was designed to... View Details

Educators

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March 2019
Case

Wattpad

By: John Deighton and Leora Kornfeld

How to run a platform to match four million writers of stories to 75 million readers? Use data science. Make money by doing deals with television and filmmakers and book publishers. The case describes the challenges of matching readers to stories and of helping writers... View Details

Educators

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2016
Working Paper

Operations in the On-Demand Economy: Staffing Services with Self-Scheduling Capacity

By: Itai Gurvich, Martin Lariviere and Antonio Moreno

Motivated by recent innovations in service delivery such as ride-sharing services and work-from-home call centers, we study capacity management when workers self-schedule. Our service provider chooses capacity to maximize its profit (revenue from served customers minus... View Details

Keywords: Strategic Servers; On-demand Economy; Independent Capacity; Distributed Systems; Uber; Service Operations; Performance Capacity

SSRN

January 2021
Article

Chain Stability in Trading Networks

By: John William Hatfield, Scott Duke Kominers, Alexandru Nichifor, Michael Ostrovsky and Alexander Westkamp

We show that in general trading networks with bilateral contracts, a suitably adapted chain stability concept (Ostrovsky, 2008) is equivalent to stability (Hatfield and Kominers, 2012; Hatfield et al., 2013) if all agents' preferences are fully substitutable and... View Details

Keywords: Matching; Trading Networks; Chain Stability; Stability; Competitive Equilibria; Full Substitutability; Laws Of Aggregate Supply And Demand; Contracts; Market Design; Balance and Stability

August 2019
Article

When and How to Diversify—A Multicategory Utility Model for Personalized Content Recommendation

By: Yicheng Song, Nachiketa Sahoo and Elie Ofek

Sometimes we desire change, a break from the same or an opportunity to fulfill different aspects of our needs. Noting that consumers seek variety, several approaches have been developed to diversify items recommended by personalized recommender systems. However,... View Details

Keywords: Recommender Systems; Personalization; Recommendation Diversity; Variety Seeking; Collaborative Filtering; Consumer Utility Models; Digital Media; Clickstream Analysis; Learning-to-rank; Consumer Behavior; Media; Customization and Personalization; Strategy; Mathematical Methods

19 Sep 2017
Working Paper Summaries

An Invitation to Market Design

.ExternalClass535E8B0AB65740BCB51D3AB82FC0F8CE p.MsoNormal, .ExternalClass535E8B0AB65740BCB51D3AB82FC0F8CE li.MsoNormal, .ExternalClass535E8B0AB65740BCB51D3AB82FC0F8CE div.MsoNormal... View Details

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

July 1998 (Revised August 1998)
Case

Optimark: Launching a Virtual Securities Market

Bill Lupien's OptiMark Technologies, Inc., plans to launch a super-computer system in September, 1998 that he believes will release previously withheld liquidity to the securities market. While today's market matches those trades based on price and size, Lupien's... View Details

Keywords: Information Technology; Financial Markets; Product Launch; Financial Services Industry; United States

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

25 Apr 2023
Op-Ed

How SHEIN and Temu Conquered Fast Fashion—and Forged a New Business Model

information technology to directly match consumer demand to dispersed production by a collection of factories in China. This method of reaching customers should inspire any business that provides products or services that come from many... View Details

Keywords: by John Deighton; Fashion; Retail; Consumer Products

2015
Chapter

Modularity and Organizations

By: Carliss Y. Baldwin

Modularity describes the degree to which a complex system can be broken apart into subunits (modules) that can be recombined in various ways. Modularity is important for organizations and the economy because the boundaries of organizational units and corporations are... View Details

Keywords: Complexity; Organizations

Purchase

27 Feb 2007
First Look

First Look: February 27, 2007

the law clerk market will lead to either a reversion to very early hiring or the use of a centralized matching system such as that used for medical residencies. We suggest, however, potential avenues by... View Details

Keywords: Martha Lagace

29 Jun 2011
Working Paper Summaries

Better-reply Dynamics in Deferred Acceptance Games

Keywords: by Guillaume Haeringer & Hanna Halaburda

2009
Working Paper

Farsighted Stability for Roommate Markets

By: Bettina-Elisabeth Klaus, Flip Klijn and Markus Walzl

Using a bi-choice graph technique (Klaus and Klijn, 2009), we show that a matching for a roommate market indirectly dominates another matching if and only if no blocking pair of the former is matched in the latter (Proposition 1). Using this characterization of... View Details

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

December 2001
Case

Cybersettle

By: Michael A. Wheeler and Gillian Morris

Cybersettle's management faced a dilemma: How could they turn their company, which provided confidential online settlement services for insurance claims, into a profitable enterprise? Having started during the heady days of Internet "dot-com fever," the company now had... View Details

Keywords: Restructuring; Bids and Bidding; Negotiation Process; Conflict and Resolution; Business Strategy; Commercialization; Internet; Insurance Industry