He was dealing also with the moral hazard and adverse selection problem.
他当时也视图解决道德风险，以及逆向选择的问题。
How to avoid adverse selection is always a problem in the flea market.
如何在跳蚤市场防止“逆向选择”是一个经常性问题。
To protect the main likely to cause serious adverse selection or moral hazard Dazhi disease;
以保大病为主容易诱发逆向选择或小病大治的道德风险；
To protect the main likely to cause serious adverse selection or moral hazard Dazhi disease;
以保大病为主容易诱发逆向选择或小病大治的道德风险；
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