Coke and Pepsi dominate the global market for cola soft drinks.
For the sake of simplicity, say they are the only two brands that
produce cola, that they share the global market for cola equally,
and produce nothing else. Suppose that Coke and Pepsi can each
adopt one of two pricing strategies: ‘price low’ or ‘price high’.
If they both price high, then they each make profits of $200
million, or ‘2’ for short. If they both price low then...