Open$-$Ended Questions

You will receive partial points for parts of questions where the answer requires a correct answer to previous parts of that question, i$.$e$.$ please don't worry about getting the first part wrong which then leads to answers to all subsequent parts to be also wrong.

$(7$ points$)$ Suppose OPEC contains only Saudi Arabia and Venezuela $($in reality, it has $12$ member countries$).$ The two OPEC members choose between producing $12$ barrels per day $($bpd$)$ and $8$ bpd every month. They will continue to make these monthly production decisions indefinitely, i$.$e$.$ with no end in sight. The following normal$-$form game provides the payoffs in billions of riyals for the game in a given month:

$\backslash$table$[[$Saudi Arabia,Venezuela$],[$Strategy$,8$ bpd$,12$ bpd$],[,8$ bpd$,12,12,-10,{50}_{?}$