Question

NOTE: In the following analysis we still assume that commodity prices are fixed and there is no foreign trade.

1. What determines the demand for real money balances? Why does it depend on the nominal rather than the real interest rate?

2. What is the LM curve?

3. What determines the slope of the LM curve?

4. If the interest sensitivity of the demand for real money (the absolute inverse slope, or flatness of the demand curve for real money, b) were higher, would the absolute inverse slope of the LM curve be higher as well?

5. How can the Fed influence the location of the LM curve and the interest rate?

       To help answer this question, assume that the demand for real balances is given by

       (1) (M/P)^d = 0.5Q ‑40i

and that money supply is initially fixed at

       (2) (M/P)^s = 400. (since prices are fixed you may assume P=1).

If money supply were increased to 500, and real output Q were constant at

       (3) Q = 1600,

How would the intercept of the LM curve change? What would be the nominal rate of interest ?

6. What are the “crowding-out effects” that limit the effectiveness of fiscal and monetary policy to stimulate the economy under the IS-LM mechanism? Specifically:

a. How would the interest elasticities of the demand for investment and money affect the efficacy of fiscal vs. monetary policies?

b. How would uncertainty about expected future taxes and regulations that increase labor costs to firms affect “autonomous” investments (the constant term in the investment demand function) and equilibrium output?

c. How do financial regulations on banks about bank capital adequacy and leverage, risk management, and reporting requirement affect equilibrium Q?          

Answer 1

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