Publications

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2020
Working Paper

Dog Eat Dog: Balancing Network Effects and Differentiation in a Digital Platform Merger

By: Chiara Farronato, Jessica Fong and Andrey Fradkin

Digital platforms are increasingly the subject of regulatory scrutiny. In comparison to multiple competitors, a single platform may increase consumer welfare if network effects are large or may decrease welfare due to higher prices or reduction in platform variety. We... View Details

Keywords: Platform Differentiation; Digital Platforms; Network Effects; Measurement and Metrics; Mergers and Acquisitions; Outcome or Result

December 2011
Article

Platform Envelopment

By: Thomas R. Eisenmann, Geoffrey Parker and Marshall Van Alstyne

Due to network effects and switching costs in platform markets, entrants generally must offer revolutionary functionality. We explore a second entry path that does not rely upon Schumpeterian innovation: platform envelopment. Through envelopment, a provider in one... View Details

Keywords: Digital Platforms; Business and Stakeholder Relations; Economic Systems; Development Economics; Business or Company Management; Business Strategy; Network Effects; Information Technology Industry; Technology Industry

2007
Working Paper

Platform Envelopment

By: Thomas Eisenmann, Geoffrey Parker and Marshall Van Alstyne

Due to network effects and switching costs in platform markets, entrants generally must offer revolutionary functionality. We explore a second entry path that does not rely upon Schumpeterian innovation: platform envelopment. Through envelopment, a provider in one... View Details

Keywords: Digital Platforms; Market Entry and Exit; Network Effects

Research Summary

Competing Platforms

This paper focuses on platform-intermediated markets where there are a small number of firms on one side and analyzes the strategic competition among platforms to get the oligopolistic side on-board. Due to the prevalence of both same and cross-side externalities,... View Details

Research Summary

Platform Competition

Technology has challenged the underlying foundations of business, and firms must evaluate and change strategies accordingly. Professor Halaburda studies the interaction of technology and economic theory, and her findings indicate that conventional wisdom and rules... View Details

2013
Working Paper

Competing by Restricting Choice: The Case of Search Platforms

By: Hanna Halaburda and Mikolaj Jan Piskorski

Seminal papers recommend that platforms in two-sided markets increase the number of complements available. We show that a two-sided platform can successfully compete by limiting the choice of potential matches it offers to its customers while charging higher prices... View Details

Keywords: Matching Platform; Indirect Network Effects; Limits To Network Effects; Decision Choices and Conditions; Network Effects; Two-Sided Platforms; Marketplace Matching; Competitive Strategy

SSRN

June 2015 (Revised May 2017)
Teaching Note

Philips Healthcare: Marketing the HealthSuite Digital Platform

By: John A. Quelch

Keywords: Healthcare; Experiential Quality; Conformance Quality; Clinical Outcomes; Cost Efficiency; Quality; Performance; Health Care and Treatment

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24 Oct 2008
Working Paper Summaries

Platform Rules: Multi-Sided Platforms as Regulators

Keywords: by Kevin J. Boudreau & Andrei Hagiu; Technology

10 Dec 2014
Working Paper Summaries

Multi-sided Platforms

Keywords: by Andrei Hagiu & Julian Wright; Technology

2011
Working Paper

Quantity vs. Quality: Exclusion by Platforms with Network Effects

By: Andrei Hagiu

This paper provides a simple model of platforms with direct network effects, in which users value not just the quantity (i.e., number) of other users who join, but also their average quality in some dimension. A monopoly platform is more likely to exclude low-quality... View Details

Keywords: Multi-sided Platforms; Exclusion; Quality And Quantity; Cost; Governing Rules, Regulations, and Reforms; Network Effects; Market Participation; Digital Platforms; Monopoly; Quality; Motivation and Incentives; Strategy

10 Dec 2018
Working Paper Summaries

Platform Competition: Betfair and the U.K. Market for Sports Betting

Keywords: by Ramon Casadesus-Masanell and Neil Campbell; Entertainment & Recreation

2021
Working Paper

Assessing the Strength of Network Effects in Social Network Platforms

By: Marco Iansiti

Network effects have risen to the forefront of platform competition discussions (e.g. the House Judiciary investigation of competition in digital markets, claiming that Facebook, for example, is entrenched due to strong network effects and high switching costs). While... View Details

Keywords: Social Networks; Platform Competition; Network Effects; Competition; Social Media; Digital Platforms

June 21, 2019
Article

When Tech Companies Compete on Their Own Platforms

By: Feng Zhu

One common complaint from third parties about platform businesses is that they see what succeeds on their platforms and then enter the most profitable areas themselves, often decimating third parties in the process. Studies have identified several motivations for... View Details

Keywords: Platform-based Markets; Platform-owner Entry; Digital Platforms; Market Entry and Exit; Competition

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April 2013
Article

First-Party Content and Coordination in Two-Sided Markets

By: Andrei Hagiu and Daniel Spulber

The strategic use of first-party content by two-sided platforms is driven by two key factors: the nature of buyer and seller expectations (favorable versus unfavorable) and the nature of the relationship between first-party content and third-party content (complements... View Details

Keywords: Two-sided Platforms; Platform Strategy; Technology; Information Technology; Performance Expectations; Strategy; Digital Platforms

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Article

Repositioning and Cost-Cutting: The Impact of Competition on Platform Strategies

By: Robert Seamans and Feng Zhu

Organizational structures are increasingly complex. In particular, more firms today operate as multi-sided platforms. In this paper, we study how platform firms use repositioning and cost-cutting in response to competition, elucidate external and internal factors that... View Details

Keywords: Platform Strategy; Repositioning; Cost-cutting; Intra-firm Learning; Multi-Sided Platforms; Cost Management; Product Positioning; Organizational Structure; Competitive Strategy; Knowledge Acquisition; Journalism and News Industry

2016
Article

Peer-to-Peer Markets

By: Liran Einav, Chiara Farronato and Jonathan Levin

Peer-to-peer markets such as eBay, Uber, and Airbnb allow small suppliers to compete with traditional providers of goods or services. We view the primary function of these markets as making it easy for buyers to find sellers and engage in convenient, trustworthy... View Details

Keywords: Peer-to-peer; Online Platforms; Matching; Innovation; Digital Platforms; Marketplace Matching; Market Design; Internet and the Web; Technology Adoption; Network Effects; Market Entry and Exit

A unifying framework is presented for thinking about the diverse digital trnsformations of the past decade: their utilities, their harms, and their ability to reward play. Individual creativity has been liberated from corporate gatekeepers, and platforms have... View Details

2019
Working Paper

Design Rules, Volume 2: How Technology Shapes Organizations: Chapter 14 Introducing Open Platforms and Ecosystems

By: Carliss Y. Baldwin

The purpose of this chapter is to lay the groundwork for a comprehensive theoretical investigation of open platform systems. To do this, we must first recognize that, although there is a strong family resemblance among all platform systems, there are different types of... View Details

Keywords: Open Platforms; Business Ecosystems; Information Technology; Organizational Design; Industry Structures; Digital Platforms

SSRN

November 2014
Case

Taryn Rose Launches Dresr: Street Marketing a Luxury Brand

By: Lena G. Goldberg, Marcel Saucet and Christine Snively

Serial entrepreneur and shoe designer Taryn Rose, M.D., prepared to launch a new e-commerce platform, Dresr, which would connect shoppers with tastemakers online. Dresr would bring the service element found in brick and mortar luxury stores into the online shopping... View Details

Keywords: E-commerce; Online Platforms; Online Marketing; Footwear; Legal Aspects Of Business; Street Marketing; Entrepreneurship; Internet and the Web; Luxury; Marketing Strategy; Digital Platforms; Legal Liability; Fashion Industry; Technology Industry