三、一种可变生产要素合理投入的确定 Price of Barley ￡O.140 per Kg Output Total Marginal Total Marginal Product Product Revenue Revenue Kg/ha Kg/ha ￡/ha ￡/ha ￡0 ￡O 300 300 ￡42 ￡42 700 400 ￡98 ￡56 1200 500 ￡168 ￡70 1600 400 ￡224 ￡56 1900 300 ￡266 ￡42 2100 200 ￡294 ￡28 2200 100 ￡308 ￡14 2250 50 ￡315 ￡7 2250 ￡315 ￡O 2220 30 ￡311 -￡4 2150 70 ￡301 -￡10 2050 100 ￡287 ￡14 1900 150 ￡266 -￡21 1700 200 ￡238 ￡28三、一种可变生产要素合理投入的确定 £0.140 per Kg Output Total Marginal Total Marginal Product Product Revenue Revenue Kg/ha Kg/ha £/ha £/ha 0 0 £0 £0 300 300 £42 £42 700 400 £98 £56 1200 500 £168 £70 1600 400 £224 £56 1900 300 £266 £42 2100 200 £294 £28 2200 100 £308 £14 2250 50 £315 £7 2250 0 £315 £0 2220 -30 £311 -£4 2150 -70 £301 -£10 2050 -100 £287 -£14 1900 -150 £266 -£21 1700 -200 £238 -£28 Price of Barley