Arbeitspapier

The strategic use of ambiguity

Ambiguity can be used as a strategic device in some situations. To demonstrate this, we propose and study a framework for normal form games where players can use Knightian uncertainty strategically. In such Ellsberg games, players may use Ellsberg urns in addition to the standard objective mixed strategies. We assume that players are ambiguity-averse in the sense of Gilboa and Schmeidler. While classical Nash equilibria remain equilibria in the new game, there arise new Ellsberg equilibria that can be quite different from Nash equilibria. A negotiation game with three players illustrates this finding. Another class of examples shows the use of ambiguity in mediation. We also highlight some conceptually interesting properties of Ellsberg equilibria in two person games with conflicting interests.

Language
Englisch

Bibliographic citation
Series: Working Papers ; No. 452

Classification
Wirtschaft
Subject
Verhandlungstheorie
Spieltheorie
Risiko
Gleichgewicht
Theorie

Event
Geistige Schöpfung
(who)
Riedel, Frank
Sass, Linda
Event
Veröffentlichung
(who)
Bielefeld University, Institute of Mathematical Economics (IMW)
(where)
Bielefeld
(when)
2011

Handle
Last update
10.03.2025, 11:44 AM CET

Data provider

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Object type

  • Arbeitspapier

Associated

  • Riedel, Frank
  • Sass, Linda
  • Bielefeld University, Institute of Mathematical Economics (IMW)

Time of origin

  • 2011

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