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71.
Loss aversion equilibrium 总被引:1,自引:0,他引:1
Jonathan Shalev 《International Journal of Game Theory》2000,29(2):269-287
The Nash equilibrium solution concept for games is based on the assumption of expected utility maximization. Reference dependent
utility functions (in which utility is determined not only by an outcome, but also by the relationship of the outcome to a
reference point) are a better predictor of behavior than expected utility. In particular, loss aversion is an important element
of such utility functions.
We extend games to include loss aversion characteristics of the players. We define two types of loss-aversion equilibrium,
a solution concept endogenizing reference points. The two types reflect different procedures of updating reference points
during the game. Reference points emerge as expressions of anticipation which are fulfilled.
We show existence of myopic loss-aversion equilibrium for any extended game, and compare it to Nash equilibrium. Comparative
statics show that an increase in loss aversion of one player can affect her and other players' payoffs in different directions.
Received August 1998/Revised version February 2000 相似文献
72.
Licun Xue 《International Journal of Game Theory》2000,29(3):339-357
This paper defines “negotiation-proof Nash equilibrium', a notion that applies to environments where players can negotiate
openly and directly prior to the play of a noncooperative game. It recognizes the possibility that a group of self-interested
players may choose, voluntarily and without binding agreement, to coordinate their choice of strategies and make joint objections;
moreover, it takes the perfect foresight of rational players fully into account. The merit of the notion of negotiation-proof
Nash equilibrium is twofold: (1) It offers a way to rectify the nestedness assumption and myopia embedded in the notion of
coalition-proof Nash equilibrium. (2) The negotiation process is formalized by a “graph”, which serves as a natural extension to the approach that models
preplay communication by an extensive game.
Received: October 1998/Final version: May 2000 相似文献
73.
Two-person repeated games with finite automata 总被引:1,自引:0,他引:1
We study two-person repeated games in which a player with a restricted set of strategies plays against an unrestricted player.
An exogenously given bound on the complexity of strategies, which is measured by the size of the smallest automata that implement
them, gives rise to a restriction on strategies available to a player.
We examine the asymptotic behavior of the set of equilibrium payoffs as the bound on the strategic complexity of the restricted
player tends to infinity, but sufficiently slowly. Results from the study of zero sum case provide the individually rational
payoff levels.
Received February 1997/revised version March 2000 相似文献
74.
Andrés Perea y Monsuwé Mathijs Jansen Dries Vermeulen 《International Journal of Game Theory》2000,29(3):433-450
By a player splitting we mean a mechanism that distributes the information sets of a player among so-called agents. A player
splitting is called independent if each path in the game tree contains at most one agent of every player. Following Mertens
(1989), a solution is said to have the player splitting property if, roughly speaking, the solution of an extensive form game
does not change by applying independent player splittings. We show that Nash equilibria, perfect equilibria, Kohlberg-Mertens
stable sets and Mertens stable sets have the player splitting property. An example is given to show that the proper equilibrium
concept does not satisfy the player splitting property. Next, we give a definition of invariance under (general) player splittings
which is an extension of the player splitting property to the situation where we also allow for dependent player splittings.
We come to the conclusion that, for any given dependent player splitting, each of the above solutions is not invariant under
this player splitting. The results are used to give several characterizations of the class of independent player splittings
and the class of single appearance structures by means of invariance of solution concepts under player splittings.
Received: December 1996/Revised Version: January 2000 相似文献
75.
We study continuous product domains in the space of all continuousE-valued functions on , where is a compact Hausdorff topological space and E is an arbitrary JB-triple, and discuss the group of holomorphic automorphisms of domains of that type.
Received November 9, 1998; in final form March 23, 1999 / Published online May 8, 2000 相似文献
76.
77.
《数学物理学报(B辑英文版)》2001,21(1):21-28
Let G be the semidirect product A1 ∝ A of the adeles and the norm 1 ideles of a global field κ. Let Γ be the discrete subgroup κ×∝ κ. In this paper the trace formula for this setting is established and used to give the complete decomposition of the G-representation on L2(Γ\G). It turns out that every character of the norm-1 idele class group gives a one dimensional isotype and the complement of those consists of one irreducible representation. 相似文献
78.
A. Morita 《Applied Physics A: Materials Science & Processing》1986,39(4):227-242
Black phosphorus is a narrow-gap semiconductor newly attracting attention because of recent success in growing single crystals at a high temperature under a high pressure. This review covers recent research work on the preparation, the crystal structure, the band structure, the electrical and optical properties, and the superconductivity of black phosphorus. 相似文献
79.
80.
Let f be a polynomial over finite field Fq with q elements and let N(f=0) denote the number of zeros of f in Fq. The q-divisibility properties of N(f=0) have been studied by many authors, such as Chavelley, Warning, Ax, Katz, etc. In this paper, by reducing the degree of a given polynomial meanwhile remaining the number of its zeros unchanged, we present an improvement upon the Chevalley-Warning-Ax-Katz-type estimates in many cases. Furthermore, our result can improve Cao-Sun's reduction recently obtained on counting the number of zeros of general diagonal equations over finite fields. 相似文献