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" Index and stability in bimatrix games : "
Arndt von Schemde.
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BL
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| Record Number
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778013
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b598023
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| Main Entry
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Arndt von Schemde.
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| Title & Author
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Index and stability in bimatrix games : : a geometric-combinatorial approach\ Arndt von Schemde.
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| Publication Statement
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Berlin ; New York : Springer, ©2005.
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| Series Statement
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Lecture notes in economics and mathematical systems, 560.
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| Page. NO
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(x, 151 pages) : illustrations
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| ISBN
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3540223886
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: 3540263667
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: 3540264590
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: 3540291024
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: 6610337578
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: 6610337969
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: 9783540223887
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: 9783540263661
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: 9783540264590
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: 9783540291022
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: 9786610337576
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: 9786610337965
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| Contents
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Introduction --; Equilibrium Components with Arbitrary Index --; A Reformulation of the Index for Equilibria in Bimatrix Games --; Sperner's Lemma and Labelling Theorems --; A Strategic Characterisation of the Index --; Outside Option Equilibrium Components --; Index Zero and Hyperstability.
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| Abstract
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The index of an equilibrium in a game gives information about the "stability" of the equilibrium, for example with respect to game dynamics. Unfortunately, index theory is often very technical. This book presents a new geometric construction that visualises the index in an intuitive way. For example, a 3×n game, for any n, can be represented by a figure in the plane, from which one can read off any equilibrium, and its index as a geometric orientation. With this insight, the index can be characterised in strategic terms alone. Moreover, certain "hyperstable" equilibrium components are seen to have nonzero index. The construction gives an elementary proof that two-player games have a Nash equilibrium, and, in an unusual direction, the powerful fixed point theorem of Brouwer.
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| Subject
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Game theory.
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Index theory (Mathematics)
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REFERENCE.
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| LC Classification
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QA269.A763 2005
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| Added Entry
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Arndt von Schemde
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