Which of the following statements is not valid when supply is perfectly elastic?
A、The elasticity of supply approaches infinity.
B、The supply curve is horizontal.
C、Very small changes in price lead to very large changes in quantity supplied.
D、The time period under consideration is more likely a short period rather than a long period.
A、The elasticity of supply approaches infinity.
B、The supply curve is horizontal.
C、Very small changes in price lead to very large changes in quantity supplied.
D、The time period under consideration is more likely a short period rather than a long period.
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