Help me

1) If real exchange rate, R(t), is less than 1, it implies

	A: Relative purchasing power of US consumers for foreign-goods improves
	B: Competitiveness of US multinationals in foreign markets declines
	C: Competitiveness of US multinationals in foreign markets improves

2) Uncovered interest rate parity (or UIP) is the same as

A:	International Fisher effect
B:	Covered interest rate parity
C:	Purchasing power parity

3) PPP does not hold in general in the short run. The exception is:

	a: When CPI levels in the economy are very low
	B: When the economy suffers from hyperinflation
	C: When the economy has high interest rate levels