Who among the following is a free rider?
A、Ernie listens to National Public Radio, but does not contribute to any fundraising efforts.
B、Bert takes the commuter rail to work, but he purchases the discounted monthly passes rather than buying tickets each day.
C、Grover sends his 5 children to a private school rather than to the public school in his neighborhood.
D、Oscar goes to Elmo’s house to watch a football game on the local television channel.
A、Ernie listens to National Public Radio, but does not contribute to any fundraising efforts.
B、Bert takes the commuter rail to work, but he purchases the discounted monthly passes rather than buying tickets each day.
C、Grover sends his 5 children to a private school rather than to the public school in his neighborhood.
D、Oscar goes to Elmo’s house to watch a football game on the local television channel.
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