And the business of selling information to consumers has always been a marginal one.

并且销售信息一直都是一个边缘行业。

youdao

In markets with imperfect information, price cannot equal marginal cost.

在信息是不完全的市场中，价格不可能等于边际成本。

youdao

In markets with imperfect information, price cannot equal marginal cost.

在信息是不完全的市场中，价格不可能等于边际成本。

youdao