thirds here and 1 third here, right?

改成2/3和1/3还是一样的
Because I'm just dividing this by 3, so instead of 1 and a

同时除以了3
half--so the original utility is this, right?

原始的是1和1/2
so the sum of this plus this is 3 halves.

1和1/2的总和是3/2
I can multiply by 2 thirds.

两边同时乘以2/3
So if I multiply this by 2 thirds I get 2 thirds here and 1

分别乘以2/3 1/3
third here, right?

理解吗
And I haven't changed the utility function.

效用函数不变
And now I know this is a familiar pattern.

这是一个模式
A is always going to spend 2 thirds of his money on the first good.

所以A花费2/3在商品一上
And B I can multiple this whole utility by a half and a half and

在B的效用函数上都乘以1/2
B is going spend-- and now we recognize it as the

我们现在意识到