Suppose the real money demand is given by

= 0.9(+)

where is real money demand, is the exponential function, is real interest rate, is growth

rate of money, and is output. The money market equilibrium condition is

/= , where is

the quantity of money and is the price level.

How, if at all, does an increase in affect the government's real revenue from printing money?

Explain your answer. What value of maximizes the government's real revenue from printing

money? Show mathematically and be sure to show the steps leading to your answer.