Which procedure or test investigates the officer's preparation, decisionmaking skills, relations with others, and knowledge and application of departmental policy?

Larger countries will trade more with one another; this is empirically supported by:

a. the intra-industry trade. b. the increasing returns to scale. c. the gravity equation. d. the comparative advantage.

The above figure shows the U.S. market for replacement cell phone batteries. When there is no international trade, the equilibrium price is ________ per battery and when there is international trade the equilibrium price is ________ per battery

A) $16; $14 B) $12; $16 C) $10; $14 D) $12; $14 E) $14; $10