【单选题】It follows from the Fisher Effect that if the real interest rate is the same worldwide; any difference in interest rates between countries reflects differing expectations about ______.
【判断题】It follows from the weak axiom of revealed preference that if a consumer chooses x when he could afford y and chooses y when he could afford x; then his income must have changed between the two observ...
【判断题】It follows from the weak axiom of revealed preference that if a consumer chooses x when he could afford y and chooses y when he could afford x , then his income must have changed between the two obser...