8. Country A is a small open economy. An external shock led to the immediate appreciation of its currency with respect to the United States
pollar. Investor's expectations are not affected.What happens to interest rate in Country A.
(A)Increase
(B)Decrease
(C)Unchanged
(D)Uncertain
(a) The phase diagrams of two alloys (alloy 1 and alloy 2) are illustrated below. In
which of the two alloys is there an energetic tendency for the A and B atoms to attract
to each other? Briefly explain your answer.