9. (blank) is a secret agreement between two or more institutions to achieve (blank) among the industry's firms 10. Three (blank) leading towards collusion: first, they can (blank) if they can decrease the (blank) among them and act monopolistically; second, they can decrease (blank) uncertainty; and third, will facilitate (blank) from the industry. 11. Another term for tacit informal agreement -price leadership -artificial barriers -quasi agreement -gentleman's agreement 12. Uniform rule of behavior in price setting -quasi agreement -merger -price leadership -acquisition