Write an equation expressing interest rate, Physics

Q. Assume an economy is in a liquidity trap.

A. Write an equation expressing interest rate parity under a fixed exchange rate regime.

Answer: Liquidity trap entail R = 0.  R = 0 = R* + (Ee - E)/E.

B. Assume Ee is fixed.  Suppose that the central bank raises the domestic money supply so as to depreciate the currency temporarily (that is, to raise E currently but return the rate to Ee later).  Show that E cannot be raised.

Answer:  Ever since R = 0 the equation in part A the interest parity condition implies E = Ee / (1- R*) as Ee and R* are fixed E can't change.

Posted Date: 6/27/2013 7:15:53 AM | Location : United States

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