Publications

SSRN

10 Dec 2014
Working Paper Summaries

Multi-sided Platforms

Keywords: by Andrei Hagiu & Julian Wright; Technology

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

We study how platform firms use repositioning and cost-cutting in response to competition, elucidate external and internal factors that constrain or enable these responses, and examine how the firms’ responses affect their performance. Our empirical context is... View Details

September 2019
Supplement

Adaptive Platform Trials: The Clinical Trial of the Future? (B)

By: Ariel D. Stern and Sarah Mehta

This case provides an update to the (A) case, which introduces students to adaptive platform trials, an ambitious, more efficient type of clinical trial that increases access to therapies. The (A) case centers on Dr. Brian Alexander’s efforts to launch an adaptive... View Details

Keywords: Clinical Trials; Drug Trials; Drug Testing; Cancer Trials; Glioblastoma; Platform Trials; Adaptive Trials; Adaptive Platform Trials; Health Testing and Trials; Health Care and Treatment; Financing and Loans; Business Strategy; Health Industry; United States

November 2015
Article

Multi-Sided Platforms

By: Andrei Hagiu and Julian Wright

We study the economic tradeoffs that drive organizations to position themselves closer to or further away from a multi-sided platform (MSP) business model, relative to three traditional alternatives: vertically integrated firms, resellers or input suppliers. These... View Details

Keywords: Two Sided Markets; Reseller; Multi-Sided Platforms; Vertical Integration

10 Jul 2007
Working Paper Summaries

Platform Envelopment

Keywords: by Thomas Eisenmann, Geoffrey Parker & Marshall Van Alstyne; Technology

24 Oct 2008
Working Paper Summaries

Platform Rules: Multi-Sided Platforms as Regulators

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

March 2018
Teaching Note

Adaptive Platform Trials: The Clinical Trial of the Future?

By: Ariel D. Stern and Sarah Mehta

This teaching note provides guidance and recommendations for teaching HBS Case No. 618-025, entitled “Adaptive Platform Trials: The Clinical Trial of the Future?” View Details

Keywords: Clinical Trials; Drug Trials; Drug Testing; Cancer Trials; Glioblastoma; Platform Trials; Adaptive Trials; Adaptive Platform Trials; Health Testing and Trials; Health Care and Treatment; Business Strategy; Health Industry; United States

June 2020
Article

Frenemies in Platform Markets: Heterogeneous Profit Foci as Drivers of Compatibility Decisions

By: Ron Adner, Jianqing Chen and Feng Zhu

We study compatibility decisions of two competing platform owners that generate profits through both hardware sales and royalties from content sales. We consider a game-theoretic model in which two platforms offer different standalone utilities to users. We find that... View Details

Keywords: Compatibility; Platform Competition; Profit Foci; Digital Platforms; Competition; Profit; Decision Making

Article

Finding the Platform in Your Product: Four Strategies That Can Reveal Hidden Value

By: Andrei Hagiu and Elizabeth J. Altman

Five of the 10 most valuable companies in the world today—Apple, Alphabet, Amazon, Facebook, and Microsoft—derive much of their worth from their multisided platforms (MSPs), which facilitate interactions or transactions between parties. Many MSPs are more valuable than... View Details

Keywords: Multi-Sided Platforms; Competitive Strategy; Value Creation

Register to Read

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

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

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

October 2019 (Revised January 2020)
Case

Fixing Facebook: Fake News, Privacy, and Platform Governance

By: David Yoffie and Daniel Fisher

Mark Zuckerberg founded Facebook based on the idea that connecting people was a fundamentally good thing—and a way to turn a handsome profit. But from the beginning, Facebook received criticism both for how it handled user privacy and how it curated user-generated... View Details

Keywords: Platform; Governance; Privacy; Internet and the Web; Corporate Governance; Ethics; Business and Government Relations; Strategy; Digital Platforms; Web Services Industry

Educators

2009
Chapter

Platform Rules: Multi-Sided Platforms As Regulators

By: Kevin J. Boudreau and Andrei Hagiu

This chapter provides a basic conceptual framework for interpreting non-price instruments used by multi-sided platforms (MSPs) by analogizing MSPs as "private regulators" who regulate access to and interactions around the platform. We present evidence on Facebook,... View Details

Keywords: Price; Governing Rules, Regulations, and Reforms; Multi-Sided Platforms; Strategy

July 2007 (Revised March 2008)
Background Note

Staging Two-Sided Platforms

By: Thomas R. Eisenmann and Andrei Hagiu

Firms that aspire to develop two-sided platforms face a formidable challenge. Prospective users on each side will not invest in the platform until they are confident there will be enough users on the other side. Traditional strategies for dealing with this... View Details

Keywords: Business Model; Risk Management; Two-Sided Platforms; Supply Chain; Strategy; Retail Industry

Educators

How does an entrepreneur, aspiring manager, or CEO become a master of strategy? In this book, we argue that everyone can learn from three of the greatest strategist of modern time, Bill Gates, Andy Grove and Steve Jobs, who also built three of the most valuable... View Details

Article

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

By: Ramon Casadesus-Masanell and Neil Campbell

We examine two episodes of strategic interaction in the U.K. betting industry: (i) Betfair (an entrant multi-sided platform or MSP) vs. Flutter (also an MSP) and (ii) Betfair vs. traditional bookmakers. We find that although Betfair was an underfunded second mover in... View Details

Keywords: Platform Design; Betting; Complements; Competing Business Models; Co-opetition; Entry; Multi-Sided Platforms; Design; Network Effects; Business Model; Competition; Cooperation