Questions tagged [nash-equilibrium]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0
votes
1answer
57 views

Proving the existence of a symmetric Bayesian Nash equilibrium

I am currently faced with the following question: Consider the public goods game. Suppose that there are $I > 2$ players and that the public goods is supplied (with benefit of 1 for all players) ...
0
votes
2answers
160 views

Help with a definition of a two-person game in a referenced paper

In the paper "Finding Mixed Nash Equilibria of Generative Adversarial Networks" the authors write in equation (1) on page 2: Consider the classical formulation of a two-player game with finitely ...
3
votes
0answers
109 views

General way to find Nash equilibrium in continuous game

I'm really interesting how to find Nash equilibrium in a continuous game with two players in the general case. Let's consider a game with continuous utility functions $F_1, F_2 : [0, 1] \times [0, 1]...
1
vote
2answers
80 views

Strong Nash Equilibria in repeated games

Suppose we have a simultaneous game, that has a strong Nash equilibrium (SNA), i.e. a weak Pareto efficient Nash equilibrium (no deviation of any subset of player brings a benefit to them). Now ...
2
votes
1answer
30 views

On the limit of assessments that are not sequentially rational

I have asked this question in Mathematics StackExchange, but there is no response yet. I've just realized that here is the right forum for asking research level questions... :'( In game theory, in ...
1
vote
1answer
71 views

Effective way to find Nash equilibrium

Is there any good algorithm for finding Nash equilibrium point, for one and repeated game theory? Thansk a lot for giving me some guidance.
1
vote
1answer
200 views

Completely mixed Nash equilibrium points

Must an isolated completely mixed Nash equilibrium (i.e., all strategies for all players receive positive weight) be essential? (By essential, I mean the equilibrium z of the game G that for every ...
6
votes
1answer
350 views

for which values of $\theta$ does this equation $x_{n+1}=\cos(\theta)x^2_{n}-\sin(\theta)x^2_{n-1}$ have bounded solutions?

I would like to investigate the global behavior of the following equation : $$x_{n+1}=Ax^2_{n}-Bx^2_{n-1}$$ where $A(\theta)= \cos(\theta)$ and $B(\theta) =\sin(\theta)$ are nonnegative parameters ...
7
votes
2answers
922 views

Boundedness of solutions of a difference equation

Is there someone who can show me how I can prove this conjecture? Or at least show me how to do the first implication ? Conjecture: Assume $\alpha,\beta, \lambda \in [0,\infty)$. Then every ...
4
votes
2answers
355 views

(linear algebra) - Can a symmetric equilibrium achive higher social-welfare than some equilibrium with the same support?

EDIT: rewritting the question to linear algebra to make it more accessible. Denote by $\Delta([n])$ the set of all probability distributions over $\{1,2,\ldots,n\}$, that is: $$\Delta([n])=\{x\in[0,...
2
votes
1answer
140 views

Is there always a symmetric “subset equilibrium” for an equilibrium in a symmetric game?

Consider a 2-player symmetric game given by a payoff matrix $A\in [0,1]^{n,n}$ for the row player (i.e. the column player matrix is $A^t$). Let $s=<s_1,s_2>$ be a (possibly mixed-strategies, ...
1
vote
0answers
343 views

What is known about multiplayer poker with flop?

I am interested in the following simplified version of poker. Each player gets a card (for example, either A or B). Then they bet knowing their own cards (for example, the pot initially has 1 euro, ...
16
votes
2answers
11k views

Simple proof of the existence of Nash equilibria for 2-person games?

Is there a nice elementary proof of the existence of Nash equilibria for 2-person games? Here's the theorem I have in mind. Suppose $A$ and $B$ are $m \times n$ matrices of real numbers. Say a ...