That’s not a firm, it’s just a person participating in the economy. There is a whole field of economics that asks: “having regard to the fact that if production

That’s not a firm, it’s just a person participating in the economy. There is a whole field of economics that asks: “having regard to the fact that if production is regulated by price movements, production could be carried on without any organisation at all … why is there any organisation?” https://en.wikipedia.org/wiki/Theory_of_the_firm https://en.wikipedia.org/wiki/Theory_of_the_firm