It is commonly argued that national defense is a public good. Nevertheless, the weapons used by the U.S. military are produced by private firms. We can conclude that
A、resources would be used more efficiently if the government produced the weapons.
B、resources would be used more efficiently if private firms provided national defense.
C、weapons are rival in consumption and excludable, but national defense is not rival in consumption and not excludable.
D、national defense is rival in consumption and excludable, but weapons are not rival in consumption and not excludable.
A、resources would be used more efficiently if the government produced the weapons.
B、resources would be used more efficiently if private firms provided national defense.
C、weapons are rival in consumption and excludable, but national defense is not rival in consumption and not excludable.
D、national defense is rival in consumption and excludable, but weapons are not rival in consumption and not excludable.
微观经济学（全英）
章节列表
1. General Overview of Economics282. Principles of Economics353. Circular-Flow Diagram and PPF204. Interdependence and Trade205. Demand and Supply756. Elasticity717. Price Control and Taxation408. CS, PS and the Efficiency of Markets109. Costs of Taxation2510. International Trade3011. Externalities3112. Public Goods and Common Resources2013. The Costs of Production20