2. Assume that the following equations characterize a large open economy: 
Y=C+I+G+NX； 
CF = -100r； CF = NX； 
Y = 3,000； C = 1/2(Y-T)； I = 800 - 100r； NX = 250 - 150e；
 G = 1,600； T= 1,000.
Where NX is net exports, CF is net capital outflow, and e is the real exchange rate. Then we can find that C = 1,000, I = 600, NX = -200, r = 2%, and e = 3.(5%)
(A)O
(B)X

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