Skip to main content Accessibility help

We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.

Close cookie message
×
  1. Home
  2. Search

Refine search

Refine search

Access:
Content type:
Publication date:
Apply   From and To filters
Subject: Show more
Journals Show more
Publishers: Show more
Societies Show more
Series: Show more
Collections: Show more

Actions for selected content:

Select all | Deselect all
  • View selected items
  • Export citations
  • Download PDF (zip)
  • Save to Kindle
  • Save to Dropbox
  • Save to Google Drive

Save Search

You can save your searches here and later view and run them again in "My saved searches".

Please provide a title, maximum of 40 characters.
Cancel
×

1 results

  • 1 - Platforms: Definitions and Typology

  • Paul Belleflamme, Université Catholique de Louvain, Belgium, Martin Peitz, Universität Mannheim, Germany
  • Book:
    The Economics of Platforms
    Published online:
    05 October 2021
    Print publication:
    11 November 2021, pp 10-40

  • Summary

    In this chapter, we analyze various forms of network effects. As a network effect is an external effect, it is important to identify the economic agent who generates it (the “originator”) and the one who is affected (the “receiver”). If originator and receiver are seen to belong to a common group of agents, one talks of a “within- group” network effect; otherwise, if they are seen to belong to different groups, one talks of a “cross-group” network effect. In both cases, it is also crucial to determine whether network effects are positive or negative. Crossing the two dimensions (within- vs. cross-group and positive vs. negative), we obtain a number of typical situations, which we describe in Sections 1.1 and 1.2. We then confront these typical situations to the reality and, on this basis, we propose a definition of platforms and ways to categorize them in Section 1.3.