Arbeitspapier
Cournot games with biconcave demand
Biconcavity is a simple condition on inverse demand that corresponds to the ordinary concept of concavity after simultaneous parameterized transformations of price and quantity. The notion is employed here in the framework of the homogeneous-good Cournot model with potentially heterogeneous firms. The analysis leads to unified conditions, respectively, for the existence of a pure-strategy equilibrium via nonincreasing best-response selections, for existence via quasiconcavity, and for uniqueness of the equilibrium. The usefulness of the generalizations is illustrated in cases where inverse demand is either nearly linear or isoelastic. It is also shown that commonly made assumptions regarding large outputs are often redundant.
- Sprache
-
Englisch
- Erschienen in
-
Series: Working Paper ; No. 16
- Klassifikation
-
Wirtschaft
Noncooperative Games
Oligopoly and Other Imperfect Markets
Existence and Stability Conditions of Equilibrium
- Thema
-
Cournot games
existence and uniqueness of a pure-strategy Nash equilibrium
generalized concavity
supermodularity
Gesamtwirtschaftliche Nachfrage
Duopol
Nash-Gleichgewicht
Nichtkooperatives Spiel
Theorie
- Ereignis
-
Geistige Schöpfung
- (wer)
-
Ewerhart, Christian
- Ereignis
-
Veröffentlichung
- (wer)
-
University of Zurich, Department of Economics
- (wo)
-
Zurich
- (wann)
-
2013
- DOI
-
doi:10.5167/uzh-51520
- Handle
- Letzte Aktualisierung
-
10.03.2025, 11:41 MEZ
Datenpartner
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Objekttyp
- Arbeitspapier
Beteiligte
- Ewerhart, Christian
- University of Zurich, Department of Economics
Entstanden
- 2013
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