the aggregate demand curve generally slopes downward and to the right because, for any given money supply m a higher price level p causes a real money supply m/p, which the interest rate and spending. the aggregate demand curve generally slopes downward and to the right because, for any given money supply m a higher price level p causes a real money supply m/p, which the interest rate and spending. higher; raises; reduces lower; raises; reduces higher; lowers; increases lower; lowers; increases