三、一种可变生产要素合理投入的确定 Input-output Max TR ￡350 ￡300 Total Cost f250 Marginal Cost Max TR-TC Total Revenu Point of inflection Marginal Revenue 三￡150 Max MR ￡10 MC=MR 0 140 160 Input Kg/ha三、一种可变生产要素合理投入的确定 Input-output -£50 £0 £50 £100 £150 £200 £250 £300 £350 0 20 40 60 80 100 120 140 160 180 200 220 240 Input Kg/ha £ per hectare Total Cost Marginal Cost Total Revenue Marginal Revenue Max TR-TC MC=MR Max MR Point of inflection Max TR