Showing 1 - 10 of 653,844
This paper studies the evolutionary stability of the unique Nash equilibrium of a first price sealed bid auction. It is shown that the Nash equilibrium is not asymptotically stable under payoff monotonic dynamics for arbitrary initial popu- lations. In contrast, when the initial population...
Persistent link: https://www.econbiz.de/10010272558
We demonstrate that in simple 2 X 2 games (cumulative) prospect theory preferences can be evolutionarily stable, i.e. a … population of players with prospect theory preferences can not be invaded by more rational players. This holds also if … is not optimal in usual decision problems. -- prospect theory ; existence of Nash equilibria ; evolutionary stability …
Persistent link: https://www.econbiz.de/10008736324
correspondence. -- Evolutionary game theory ; best response dynamics ; CURB sets ; persistent retracts ; asymptotic stability ; Nash …
Persistent link: https://www.econbiz.de/10009231404
We show that for many classes of symmetric two-player games, the simple decision rule 'imitate-if-better' can hardly be beaten by any strategy. We provide necessary and sufficient conditions for imitation to be unbeatable in the sense that there is no strategy that can exploit imitation as a...
Persistent link: https://www.econbiz.de/10009544162
We justify risk neutral equilibrium bidding in commonly known fair division games with incompleteinformation by an evolutionary setup postulating (i) minimal common knowledge, (ii) optimal responses to conjectural beliefs how others behave and (iii) evolutionary selection of conjectural beliefs...
Persistent link: https://www.econbiz.de/10012848843
This paper studies the English (progressive) auction for an exchange economy with multiple objects. The English auction is a tatonnement process and lasts multiple rounds. It is modeled as a sequence of round games. Each round game is a normal form game in which an agent's strategies are his...
Persistent link: https://www.econbiz.de/10011576990
In contexts in which players have no priors, we analyze a learning process based on ex-post regret as a guide to understand how to play games of incomplete information under private values. The conclusions depend on whether players interact within a fixed set (fixed matching) or they are...
Persistent link: https://www.econbiz.de/10008688967
In contexts in which players have no priors, we analyze a learning process based on ex-post regret as a guide to understand how to play games of incomplete information under private values. The conclusions depend on whether players interact within a fixed set (fixed matching) or they are...
Persistent link: https://www.econbiz.de/10013142432
This paper characterizes the Nash equilibrium in a pay-as-bid (discriminatory), divisible-good, procurement auction. Demand by the auctioneer is uncertain as in the supply function equilibrium model. A closed form expression is derived. Existence of an equilibrium is ensured if the hazard rate...
Persistent link: https://www.econbiz.de/10003809072
We show that if limit orders are required to vary smoothly, then strategic (Nash) equilibria of the double auction mechanism yield competitive (Walras) allocations. It is not necessary to have competitors on any side of any market: smooth trading is a substitute for price wars. In particular,...
Persistent link: https://www.econbiz.de/10003782307