And over time, the economic analogue of natural selection operates as the market determines which firms are profitable and which are unprofitable, and tends to winnow out the latter.

• 同样随着时间变化，经济领域中也发生着自然选择，即市场决定着哪些企业可以盈利，哪些不能，并渐渐把后者淘汰出局。