Simultaneous equilibrium in the money and goods market is given by the equation

Y = hk_e/ h+kbk_e (A)+ bk_e/ h+kbk_e (M/P)

a) Find an expression which relates the change in output (y) to a change in the price level.

(Hint: The behavioral coefficients and A are held constant

b) Find the shift in aggregate demand when there is an increase in the nominal money supply, other things equal.