Competition can influence the rate of profit only to the extent that it affects the prices of commodities.
 Karl Marx, Das Kapital (1894). copy citation

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Author Karl Marx
Source Das Kapital
Topic competition profit
Date 1894
Language English
Reference
Note
Weblink https://www.marxists.org/archive/marx/works/download/pdf/Capital-Volume-...

Context

“By competition among the capitalists? But the competition already presupposes the existence of profit. It presupposes various rates of profit, and thus various profits — either in the same or in different spheres of production. Competition can influence the rate of profit only to the extent that it affects the prices of commodities. Competition can only make the producers within the same sphere of production sell their commodities at the same prices, and make them sell their commodities in different spheres of production at prices which will give them the same profit, the same proportional addition to the price of commodities which has already been partially determined by wages.” source