Reduced normal forms are not extensive forms
Carlos Alós-Ferrer () and
Klaus Ritzberger ()
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Carlos Alós-Ferrer: University of Zurich
Klaus Ritzberger: Royal Holloway, University of London
Economic Theory Bulletin, 2020, vol. 8, issue 2, No 8, 288 pages
Abstract Fundamental results in the theory of extensive form games have singled out the reduced normal form as the key representation of a game in terms of strategic equivalence. In a precise sense, the reduced normal form contains all strategically relevant information. This note shows that a difficulty with the concept has been overlooked so far: given a reduced normal form alone, it may be impossible to reconstruct the game’s extensive form representation.
Keywords: Reduced normal forms; Extensive form games (search for similar items in EconPapers)
JEL-codes: C72 (search for similar items in EconPapers)
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