Answer:
a) shift upwards
b) Rise from "r1 to r2"
c) Decrease
d) Trade surplus
e) Fall
Explanation:
A) The world investment curve which is a function of interest will shift upwards
b) The world interest rate will rise from "r1 to r2" ( i.e. increase in cost of acquiring world investment )
C) The Investment in Oceania will decrease because the increase in world interest rate will have a direct impact on an open economy
D) Oceania's trade balance will experience a trade surplus because there will be an increase in exports and a decrease in imports due to the decrease in domestic investment
E) Oceania real exchange rate will fall because more people will be wiling to save due to the high interest rate rather than investing