Asset pricing with stochastic differential utility
In: Working paper series 9122
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In: Working paper series 9122
In: Journal of economic dynamics & control, Band 118, S. 103975
ISSN: 0165-1889
In: Lecture Notes in Economics and Mathematical Systems; Nonlinear and Convex Analysis in Economic Theory, S. 119-129
In: London mathematical society student texts 103
"Stochastic games are a mathematical model that is used to study dynamic interactions among agents who in uence the evolution of the environment. These games were rst presented and studied by Lloyd Shapley (1953).1;2 Since Shapley's seminal work, the literature on stochastic games expanded considerably, and the model was applied to numerous areas, such as arm race, shery wars, and taxation"--
In: Decision analysis: a journal of the Institute for Operations Research and the Management Sciences, INFORMS, Band 18, Heft 2, S. 153-168
ISSN: 1545-8504
The definition of best response for a player in the Nash equilibrium is based on maximizing the expected utility given the strategy of the rest of the players in a game. In this work, we consider stochastic games, that is, games with random payoffs, in which a finite number of players engage only once or at most a limited number of times. In such games, players may choose to deviate from maximizing their expected utility. This is because maximizing expected utility strategy does not address the uncertainty in payoffs. We instead define a new notion of a stochastic superiority best response. This notion of best response results in a stochastic superiority equilibrium in which players choose to play the strategy that maximizes the probability of them being rewarded the most in a single round of the game rather than maximizing the expected received reward, subject to the actions of other players. We prove the stochastic superiority equilibrium to exist in all finite games, that is, games with a finite number of players and actions, and numerically compare its performance to Nash equilibrium in finite-time stochastic games. In certain cases, we show the payoff under the stochastic superiority equilibrium is 70% likely to be higher than the payoff under Nash equilibrium.
In: Journal of economic dynamics & control, Band 75, S. 91-113
ISSN: 0165-1889
SSRN
Working paper
In: Dynamic games and applications: DGA, Band 7, Heft 2, S. 157-184
ISSN: 2153-0793
SSRN
Working paper
In: Public choice, Band 21, Heft 1, S. 91-97
ISSN: 1573-7101
In: Public choice, Band 21, S. 91-97
ISSN: 0048-5829
THE TENDENCY OF GOVERNMENT PROGRAMS TO EXPAND WITH TIME WAS EXAMINED AND A LOGICAL EXPLANATION SET FORTH. THE 2 PROGRAMS STUDIED WERE HIGHER EDUCATION AND INCOME MAINTENANCE- BOTH RECEIVE FEDERAL AND STATE FUNDING. THE DATA SHOWED A HIGHLY SIGNIFICANT RELATIONSHIP BETWEEN THE CHANGE IN THE NUMBER OF BENEFICIARIES IN 1 TIME PERIOD AND THE CHANGE IN SPENDING IN THE NEXT.
This paper analyses the time consistency of open-loop equilibria, in the cases of Nash and Stackelberg behaviour. We define a class of games where the strong time-consistency of the open-loop Nash equilibrium associates with the time consistency of the open-loop Stackelberg equilibrium. We label these games as 'perfect uncontrollable'. We provide one example based on a model of oligopolistic competition in advertising efforts. We also present two oligopoly games where one property holds while the other does not, so that either (i) the open-loop Nash equilibrium is subgame perfect while the stackelberg one is time inconsistent, or (ii) the open-loop Nash and Stackelberg equilibria are only weakly time consistent.
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In: Lecture notes in control and information sciences 64
In: Dynamic games and applications: DGA, Band 7, Heft 4, S. 578-593
ISSN: 2153-0793