朋友(Nanhai Wu)写了一篇经济学方面的论文，想贴到预印本网站arXiv上。因为是第一
次，需要有arXiv经济学板块账号的endorsement。
请大家帮忙哦，非常感谢！
Nanhai Wu requests your endorsement to submit an article to the econ.EM
section of arXiv. To tell us that you would (or would not) like to
endorse this person, please visit the following URL: https://arxiv.org/auth/endorse?x=FZW7CP
If that URL does not work for you, please visit http://arxiv.org/auth/endorse.php
and enter the following six-digit alphanumeric string:
Endorsement Code: FZW7CP
