“sales and earnings of listed companies would need to be…” — Motley Fool Money at 27:13
“sales and earnings of listed companies would need to be the same over time as a proportion of the total economy. I'm not sure if it's more or less, it may be no different at all. But for that to continue to be true, you'd have to be able to carry the same thing through. Let's assume for the fun of it that the sales…”
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