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  • All HBS Web  (2,926)
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    • News  (700)
    • Research  (1,651)
    • Events  (30)
    • Multimedia  (42)
  • Faculty Publications  (1,160)

Show Results For

  • All HBS Web  (2,926)
    • People  (9)
    • News  (700)
    • Research  (1,651)
    • Events  (30)
    • Multimedia  (42)
  • Faculty Publications  (1,160)
← Page 2 of 2,926 Results →
  • October 2019
  • Article

Adaptive Platform Trials: Definition, Design, Conduct and Reporting Considerations

By: Derek C. Angus, Brian M. Alexander, Scott Berry, Meredith Buxton, Roger Lewis, Melissa Paoloni, Steven A. R. Webb, Steven Arnold, Anna Barker, Donald A. Berry, Marc J. M. Bonten, Mary Brophy, Christopher Butler, Timothy F. Cloughesy, Lennie P. G. Derde, Laura J. Esserman, Ryan Ferguson, Louis Fiore, Sarah C. Gaffey, J. Michael Gaziano, Kathy Giusti, Herman Goossens, Stephane Heritier, Bradley Hyman, Michael Krams, Kay Larholt, Lisa M. LaVange, Philip Lavori, Andrew W. Lo, Alexander J. London, Victoria Manax, Colin McArthur, Genevieve O’Neill, Giovanni Parmigiani, Jane Perlmutter, Elizabeth A. Petzold, Craig Ritchie, Kathryn M. Rowan, Christopher W. Seymour, Nathan I. Shapiro, Diane M. Simeone, Bradley Smith, Bradley Spellberg, Ariel Dora Stern, Lorenzo Trippa, Mark Trusheim, Kert Viele, Patrick Y. Wen and Janet Woodcock
Researchers, clinicians, policymakers, and patients are increasingly interested in questions about therapeutic interventions that are difficult or costly to answer with traditional, free-standing, parallel-group randomized controlled trials (RCTs). Examples include... View Details
Keywords: Adaptive Platform Trials; Health Testing and Trials
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Angus, Derek C., Brian M. Alexander, Scott Berry, Meredith Buxton, Roger Lewis, Melissa Paoloni, Steven A. R. Webb, Steven Arnold, Anna Barker, Donald A. Berry, Marc J. M. Bonten, Mary Brophy, Christopher Butler, Timothy F. Cloughesy, Lennie P. G. Derde, Laura J. Esserman, Ryan Ferguson, Louis Fiore, Sarah C. Gaffey, J. Michael Gaziano, Kathy Giusti, Herman Goossens, Stephane Heritier, Bradley Hyman, Michael Krams, Kay Larholt, Lisa M. LaVange, Philip Lavori, Andrew W. Lo, Alexander J. London, Victoria Manax, Colin McArthur, Genevieve O’Neill, Giovanni Parmigiani, Jane Perlmutter, Elizabeth A. Petzold, Craig Ritchie, Kathryn M. Rowan, Christopher W. Seymour, Nathan I. Shapiro, Diane M. Simeone, Bradley Smith, Bradley Spellberg, Ariel Dora Stern, Lorenzo Trippa, Mark Trusheim, Kert Viele, Patrick Y. Wen, and Janet Woodcock. "Adaptive Platform Trials: Definition, Design, Conduct and Reporting Considerations." Nature Reviews: Drug Discovery 18, no. 10 (October 2019): 797–807.
  • 10 Dec 2014
  • Working Paper Summaries

Multi-sided Platforms

Keywords: by Andrei Hagiu & Julian Wright; Technology
  • December 2020 (Revised March 2021)
  • Case

eXp Realty and the Virbela Platform

By: Prithwiraj Choudhury, Jan Bena, David Rowat and Emma Salomon
As he considered his plans for the future, Glenn Sanford, CEO of eXp World Holdings, Inc., faced an exciting conundrum. He had built the first all-remote real estate brokerage firm, eXp Realty, which had been growing exponentially and was thriving, even amidst the... View Details
Keywords: Real Estate; All Remote; Virtual Platform; Internet and the Web; Strategy; Decision Making; Resource Allocation; Digital Platforms; Real Estate Industry; Technology Industry
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Choudhury, Prithwiraj, Jan Bena, David Rowat, and Emma Salomon. "eXp Realty and the Virbela Platform." Harvard Business School Case 621-068, December 2020. (Revised March 2021.)
  • 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
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Eisenmann, Thomas R., Geoffrey Parker, and Marshall Van Alstyne. "Platform Envelopment." Strategic Management Journal 32, no. 12 (December 2011): 1270–1285.
  • 2018
  • Working Paper

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; Digital Platforms; Design; Network Effects; Business Model; Competition; Cooperation; Market Entry and Exit
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Casadesus-Masanell, Ramon, and Neil Campbell. "Platform Competition: Betfair and the U.K. Market for Sports Betting." Harvard Business School Working Paper, No. 19-057, November 2018.
  • 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
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Eisenmann, Thomas, Geoffrey Parker, and Marshall Van Alstyne. "Platform Envelopment." Harvard Business School Working Paper, No. 07-104, June 2007. (Revised September 2008, October 2009, July 2010.)
  • 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
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Hagiu, Andrei, and Julian Wright. "Multi-Sided Platforms." International Journal of Industrial Organization 43 (November 2015): 162–174.
  • January 2024
  • Article

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
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Farronato, Chiara, Jessica Fong, and Andrey Fradkin. "Dog Eat Dog: Balancing Network Effects and Differentiation in a Digital Platform Merger." Management Science 70, no. 1 (January 2024): 464–483.
  • 10 Jul 2007
  • Working Paper Summaries

Platform Envelopment

Keywords: by Thomas Eisenmann, Geoffrey Parker & Marshall Van Alstyne; Technology
  • 2019
  • Working Paper

Design Rules, Volume 2: How Technology Shapes Organizations: Chapter 17 The Wintel Standards-based Platform

By: Carliss Y. Baldwin
The purpose of this chapter is to use the theory of bottlenecks laid out in previous chapters to better understand the dynamics of an open standards-based platform. I describe how the Wintel platform evolved from 1990 through 2000 under joint sponsorship of Intel and... View Details
Keywords: Open Platforms; Bottlenecks; Wintel Platform; Disintermediation; Information Infrastructure; Applications and Software; Business History; Digital Platforms; Computer Industry
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Baldwin, Carliss Y. "Design Rules, Volume 2: How Technology Shapes Organizations: Chapter 17 The Wintel Standards-based Platform." Harvard Business School Working Paper, No. 20-055, November 2019.
  • 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
  • 2007
  • Working Paper

Proprietary vs. Open Two-Sided Platforms and Social Efficiency

By: Andrei Hagiu
This paper identifies a fundamental economic welfare tradeoff between two-sided open platforms and two-sided proprietary (closed) platforms connecting consumers and producers. Proprietary platforms create two-sided deadweight losses through monopoly pricing but at the... View Details
Keywords: Two-Sided Markets; Platforms; Indirect Network Effects; Product Variety; Social Efficiency; Two-Sided Platforms; Network Effects; Welfare or Wellbeing
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Hagiu, Andrei. "Proprietary vs. Open Two-Sided Platforms and Social Efficiency." Harvard Business School Working Paper, No. 07-095, May 2007.
  • March 2022
  • Article

From Proprietary to Collective Governance: How Do Platform Participation Strategies Evolve?

By: Siobhan O'Mahony and Rebecca Karp
When platform leaders change the rules guiding who can access and control a platform, the strategies of those who create value from the platform can be upended. Little research examines how platform participants adapt their strategies when a platform leader changes the... View Details
Keywords: Platform Governance; Access; Crowdsourcing; Applications and Software; Employees; Leadership Style; Cybersecurity; Risk Management
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O'Mahony, Siobhan, and Rebecca Karp. "From Proprietary to Collective Governance: How Do Platform Participation Strategies Evolve?" Strategic Management Journal 43, no. 3 (March 2022): 530–562.
  • 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
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Stern, Ariel D., and Sarah Mehta. "Adaptive Platform Trials: The Clinical Trial of the Future?" Harvard Business School Teaching Note 618-048, March 2018.
  • 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
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Baldwin, Carliss Y. "Design Rules, Volume 2: How Technology Shapes Organizations: Chapter 14 Introducing Open Platforms and Ecosystems." Harvard Business School Working Paper, No. 19-035, October 2018. (Revised January 2019.)
  • 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
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Hagiu, Andrei. "Quantity vs. Quality: Exclusion by Platforms with Network Effects." Harvard Business School Working Paper, No. 11-125, May 2011.
  • 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
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Yoffie, David, and Daniel Fisher. "Fixing Facebook: Fake News, Privacy, and Platform Governance." Harvard Business School Case 720-400, October 2019. (Revised January 2020.)
  • 24 Oct 2008
  • Working Paper Summaries

Platform Rules: Multi-Sided Platforms as Regulators

Keywords: by Kevin J. Boudreau & Andrei Hagiu; Technology
  • 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
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Iansiti, Marco. "Assessing the Strength of Network Effects in Social Network Platforms." Harvard Business School Working Paper, No. 21-086, February 2021.
  • 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
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Halaburda, Hanna, and Mikolaj Jan Piskorski. "Competing by Restricting Choice: The Case of Search Platforms." Harvard Business School Working Paper, No. 10-098, May 2010. (Revised June 2010, March 2011, August 2011, March 2013.)
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