·2,447,543篇论文数据，部分数据来源于NoteExpress
Wholesale record prices are highly visible—a few prices in company catalogues account for the bulk of sales—which suggests that firms could plausibly co-ordinate on an agreed tariff.
产片的批发价格是高度透明的，公司目录上少少的价格就说明了大部分的销售状况，这也表明唱片公司很有可能在制定价格表上达成一致。
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