Suppose the MP curve is given as r = 2 + π, and the IS curve is given as Y = 20 – 2r.
a. Derive an expression for the AD curve, and draw a graph labelling points at π = 0, π = 4, and π = 8.
b. Suppose that λ increases to λ = 2. Derive an expression for the new AD curve, and draw the new AD curve using the graph from part (a).
c. What does your answer to part (b) say about the relationship between a central bank’s distaste for inflation and the slope of the AD curve?
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