恩格尔曲线(engel curve) ,反映的是所购买的一种商品的均衡数量与 x1* engel curve for good x2* engel curve for good engel curve income income inferior normal q q normal goods 奢侈品分析ppt 中级微观经济学奢侈品分析 恩格尔曲线(engel curve) the demand for good 1 is x1 = m/(p1 p2), so the engel curve is