1． Ronald’s monthly demand for Cap Rock Chardonnay is given by 116()50010QITP=+ͨ

题目

1． Ronald’s monthly demand for Cap Rock Chardonnay is given by 116()50010QITP=+−−,where I is Ronald’s monthly income,T is his tax expense and P is the price of Cap Rock Chardonnay.Suppose the Price of Cap Rock Chardonnay is $10,Ronald’s monthly income is $15,000,and his tax expense is $5,000.Calculate how much Ronald changes his Chardonnay consumption if his taxes are increased by 20%.Also,calculate Ronald’s Consumer Surplus from consuming Cap Rock Chardonnay before and after the increase in taxes
那个关系式是Q=6+（1/500)(I—T)—（1/10)*P

答案

貌似消费的是盖岩莎当妮白葡萄酒
如果个人收入的税收上升20%,则消费量由25变为23（直接代入数,没难度）
税收变动以前：P=-10*Q+260 与 P=10 和坐标纵轴围成一个三角形区域,面积为250*25*0.5=3125即为消费者剩余
税收变动以后：P=-10*Q+240 与 P=10 和坐标纵轴围成一个三角形区域,面积为230*23*0.5=2645即为消费者剩余
希望能帮到你~