Which of the following countries had the worst score in the Corruption Perception Index in 2012?

An incumbent's threat to retaliate after a potential competitor enters the market will be taken seriously by potential competitors if

A) the incumbent can still earn a profit after carrying out the threat. B) the incumbent earns greater profit carrying out the threat than by accommodating entry. C) the potential entrant cannot earn a profit if the threat is carried out. D) the potential entrant's profit exceeds the incumbent's if the threat is carried out.

If a firm enlarges its factory size and realizes higher average (per unit) costs of production then:

a. it has experienced economies of scale. b. it has experienced diseconomies of scale. c. it has experienced constant returns to scale. d. the long-run average cost curve slopes downward. e. the long-run average cost curve shifts upward.