00:01
Here we want to show a payoff matrix for a game of matching pennies.
00:05
So we have, of course, pennies have heads and tails, so we can go ahead and fill that out.
00:10
So this payoff matrix is going to have two options.
00:14
Obviously, heads and tails for my penny.
00:18
And my friend is going to have also heads or tails.
00:24
Now, what i know is that if both pennies are heads, i win.
00:29
So i can fill that out.
00:30
So for me, if both of them end up being heads, i am going to get my two cents and my friend won't get anything.
00:38
Now, i also know if both of the pennies are tails, i am going to get two cents, but my friend won't get anything.
00:44
Now, if they are mismatch, what's going to happen is i won't get anything, and my friend will get both those pennies.
00:53
So now we want to know, is there any nash equilibrium? well, there is not any nash equilibrium because you can see, regardless of what ends up, up happening, one of us would like to switch.
01:05
So there's no nash equilibrium.
01:08
And how about a, or there's no peer nash, i should say.
01:11
Let me rewrite that...