Konferenzbeitrag

Optimism leads to optimality: Ambiguity in network formation

We analyze a model of endogenous two-sided network formation where players are affected by uncertainty in their opponents' decisions. We model this uncertainty using the notion of equilibrium under ambiguity (Eichberger and Kelsey, 2014). Unlike the set of Nash equilibria, the set of equilibria under ambiguity does not always include underconnected and thus inefficient networks such as the empty network. On the other hand, it may include networks with unreciprocated, one-way links, which comes with an efficiency loss as linking efforts are costly. We characterize equilibria under ambiguity and provide conditions under which increased player optimism comes with an increase in efficiency in equilibrium. Next, we analyze the dynamic situation with one-sided, myopic updating with regular optimistic shocks and derive a global stability condition of benefit-maximizing equilibrium networks.

Sprache
Englisch

Erschienen in
Series: Beiträge zur Jahrestagung des Vereins für Socialpolitik 2021: Climate Economics

Klassifikation
Wirtschaft
Network Formation and Analysis: Theory
Search; Learning; Information and Knowledge; Communication; Belief; Unawareness

Ereignis
Geistige Schöpfung
(wer)
Bayer, Peter
Guerdjikova, Ani
Ereignis
Veröffentlichung
(wer)
ZBW - Leibniz Information Centre for Economics
(wo)
Kiel, Hamburg
(wann)
2021

Handle
Letzte Aktualisierung
10.03.2025, 11:46 MEZ

Datenpartner

Dieses Objekt wird bereitgestellt von:
ZBW - Deutsche Zentralbibliothek für Wirtschaftswissenschaften - Leibniz-Informationszentrum Wirtschaft. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.

Objekttyp

  • Konferenzbeitrag

Beteiligte

  • Bayer, Peter
  • Guerdjikova, Ani
  • ZBW - Leibniz Information Centre for Economics

Entstanden

  • 2021

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