9. Given an economy is in its SS where ki = Ki = KS and you = )= y , answer the following questions: (a) (1 point) How does the increase of the saving rate affect k, and y? (b) (1 point) How does the decrease of the saving rate affect k, and y? (c) (1 point) How does the increase of the depreciation rate affect k, and y,? (d) (1 point) How does the decrease of the depreciation rate affect k, and y