悦然纸上 发表于 2013-8-4 16:54
The paper is well written, but I think it would be better if you can consider its negative influence ...

reduce_fat 发表于 2013-8-3 13:09
这是 reduce_fat 在大三下学期写的论文，当时刚开始学公众经济学Public Economics。这在美国叫term paper,  ...