如果两种商品是替代品,那么交叉价格弹性总为负。( )
参考答案
参考解析
【单选题】
In the following conversation: ( ).
—Beirut is in Peru, isn’t it
—And Rome is in Romania, I suppose.
The second person violates the ( )
Quantity maxim
Quality maxim
Relation maxim
Manner maxim