If a 20 percent increase in the price of a used car results in a 10 percent decrease in the quantity of used cars demanded, then the price elasticity of demand equals

Answer the following statement(s) true (T) or false (F)

1. When a game has more than one Nash equilibrium, it is unlikely that a stable equilibrium will ever be reached. 2. The copycat game does not have a pure strategy Nash Equilibrium. 3. When mixed strategies are allowed, the Copycat Game does have a Nash equilibrium. 4. Nash equilibrium is a normative concept. 5. For an outcome to be Pareto optimal, the players' total payoff must be as large as possible.

Answer the following statement(s) true (T) or false (F)

1. Social welfare consequences are ambiguous when two or more manufacturers merge to take advantage of economies of scale. 2. When a monopoly supplier acquires a monopoly manufacturer, the vertical merger intensifies the supplier's use of monopoly power over the manufacturer. 3. A buy-out is more likely to delay a rival's reemergence than is predatory pricing. 4. Economic analysis suggests that resale price maintenance is primarily used by manufacturers to keep prices artificially high. 5. A firm has the incentive to cheat on a cartel agreement only when it fears that other cartel members will also cheat.