Heterogeneity and Uniqueness in Interaction Games

44 Pages Posted: 26 Feb 2003

See all articles by Stephen Morris

Stephen Morris


Hyun Song Shin

Bank for International Settlements (BIS)

Date Written: February 2003


Incomplete information games, local interaction games and random matching games are all special cases of a general class of interaction games (Morris (1997)). In this paper, we use this equivalence to present a unified treatment of arguments generating uniqueness in games with strategic complementarities by introducing heterogeneity in these different settings. We also report on the relation between local and global heterogeneity, on the role of strategic multipliers and on purification in the three types of interaction game.

Keywords: Heterogeneity, Uniqueness, Global Games

JEL Classification: C72, D8

Suggested Citation

Morris, Stephen Edward and Shin, Hyun Song, Heterogeneity and Uniqueness in Interaction Games (February 2003). Cowles Foundation Discussion Paper No. 1402. Available at SSRN: https://ssrn.com/abstract=383622

Stephen Edward Morris (Contact Author)

MIT ( email )

77 Massachusetts Avenue
50 Memorial Drive
Cambridge, MA 02139-4307
United States

HOME PAGE: http://https://economics.mit.edu/faculty/semorris

Hyun Song Shin

Bank for International Settlements (BIS) ( email )

Centralbahnplatz 2
Basel, Basel-Stadt 4002

HOME PAGE: http://www.bis.org/author/hyun_song_shin.htm

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