The CES utility function produces a very special case in which increasing market size translates into increasing variety only and not any change in scale so firms remain at the same point on their AC curve in the long run.
哪位高人可以给详细讲解一下啊?我不明白为什么CES utility function 有这个效果,然后这个图形是什么样子的?
非常之感谢