Now, what produces a want of demand? A refusal to take from other countries the commodities which they produce.

Now, what produces a want of demand? A refusal to take from other countries the commodities which they produce.

那么，是什么导致了需求不足呢?拒绝从其他国家拿走他们生产的商品。

-- Joseph Hume 约瑟夫·休谟