Arbeitspapier

The category of node-and-choice extensive-form games

This paper develops the category NCG. Its objects are node-and-choice games, which include essentially all extensive-form games. Its morphisms allow arbitrary transformations of a game's nodes, choices, and players, as well as monotonic transformations of the utility functions of the game's players. Among the morphisms are subgame inclusions. Several characterizations and numerous properties of the isomorphisms are derived. Also, the game-theoretic concepts of no-absentmindedness, perfect-information, and (pure-strategy) Nash-equilibrium are shown to be isomorphically invariant. Finally, full subcategories are defined for choice-sequence games and choice-set games, and relationships among these two subcategories and NCG itself are expressed and derived via isomorphic inclusions and equivalences.

Language
Englisch

Bibliographic citation
Series: Research Report ; No. 2020-4

Classification
Wirtschaft
Stochastic and Dynamic Games; Evolutionary Games; Repeated Games
Subject
isomorphic inclusion
isomorphic equivalence
choice-sequence
choice-set

Event
Geistige Schöpfung
(who)
Streufert, Peter Alfred
Event
Veröffentlichung
(who)
The University of Western Ontario, Department of Economics
(where)
London (Ontario)
(when)
2020

Handle
Last update
10.03.2025, 11:42 AM CET

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Object type

  • Arbeitspapier

Associated

  • Streufert, Peter Alfred
  • The University of Western Ontario, Department of Economics

Time of origin

  • 2020

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