But once such businesses get beyond a certain size, the authors argue, the returns to scale diminish quickly.

作者同意，如果他们的经营超出了一定规模，他们的收益在一定范围却减少了。

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But once such businesses get beyond a certain size, the authors argue, the returns to scale diminish quickly.

ECONOMIST: Economics focus: The in-betweeners | The

Second, scientific advance tends to have increasing returns to scale: adding more scientists to a community does not diminish individual marginal productivity but tends to increase it.

ECONOMIST: BY INVITATION: Helping the world’s poorest | The