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主题:茗谈(79):危大于机 -- 本嘉明

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家园 certain industries do not

have scale of economy and it is difficult to 提高行业集中度.

In US economic history, some industries quickly become highly concentrated because of its nature (e.g., oil exploration and refinery), but some never achieved large scale (e.g., restaurant business, textile making).

China's export firms belong to the 2nd category.

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