持續有效的市場需要不斷完善，這需要人有勇氣看到不合理，去打破，建新法規，曆史上童工法，平等機會法等等。

來源: quantnj 於 2024-10-20 07:37:00 [舊帖] [給我悄悄話] 本文已被閱讀：次

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