Two individuals engage in the same two productive activities. In which of the following circum-stances would neither individual have a comparative advantage in either activity?
A、One individual’s production possibilities frontier is steeper than the other individual’s production possibilities frontier.
B、One individual is faster at both activities than the other individual.
C、One individual’s opportunity costs are the same as the other individual’s opportunity costs.
D、None of the above is correct; one of the two individuals always will have a comparative advantage in at least one of the two activities.
A、One individual’s production possibilities frontier is steeper than the other individual’s production possibilities frontier.
B、One individual is faster at both activities than the other individual.
C、One individual’s opportunity costs are the same as the other individual’s opportunity costs.
D、None of the above is correct; one of the two individuals always will have a comparative advantage in at least one of the two activities.
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