I am studying the book Game Theory by Guillermo Owen and in the next paragraph I do not understand what means a chance move. Could anyone explain to me, please?
The elements of a game are seen here: condition $\alpha$ states that there is a starting point; $\beta$ gives a payoff function; $\gamma$ divides the moves into chance moves ($S_0$) and personal moves which correspond to the $n$ players ($S_1,\dots,S_n$); $\delta$ defines a...
The condition gamma reads:
By an n-person game in extensive form is meant:
($\gamma$) a partition of the nonterminal vertices of $\Gamma$ into $n+1$ sets $S_0,S_1,\dots,S_n$ called the player sets
It sounds like they are moves that happen independent of the players' actions. Maybe a random number is pulled and the state of the game changes depending on the number. If there is no randomness associated, the change can be counted as part of the last player move.