
The above figure shows the payoff matrix for two firms. A chemical firm must choose between a low level of production which yields one ton of pollution into a nearby lake and a high level of production which yields two tons of pollution into the nearby lake. A private beach on the lake must decide whether to operate or not. Increased pollution reduces the number of people who wish to visit the beach. Joint profits are maximized when
◦ the beach shuts down and the chemical firm produces 1 ton of pollution.
◦ the beach shuts down and the chemical firm produces 2 tons of pollution.
◦ the beach operates and the chemical firm produces 1 ton of pollution.
◦ the beach operates and the chemical firm produces 2 tons of pollution.