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17 March, 14:10

Assume that the money demand function is (M / P) d = 2,200 - 200r, where r is the interest rate in percent. The money supply M is 2,000, and the price level P is 2. If the price level is fixed and the supply of money is raised to 2,800, then the equilibrium interest rate will:

A. drop by 4 percent

B. drop by 2 percent

C. drop by 1 percent

D. remain unchanged

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  1. 17 March, 15:07
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    drop by 2 percent

    Explanation: Given that:

    M = 2000

    P = 2

    (M/P) d = 2200 - 200r

    2000/2 = 2200 - 200r

    1000 = 2200 - 200r

    2200-1000 = 200r

    1200 = 200r

    r = 1200/200

    r = 6

    When M = 2800

    (M/P) d = 2200 - 200r

    2800/2 = 2200 - 200r

    1600 = 2200 - 200r

    2200-1600 = 200r

    600 = 200r

    r = 600/200

    r = 3

    The equilibrium interest rate will:

    Rate when m = 2000 / Rate when m = 2800

    6/3 = 2
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