Earlier quoted context omitted.
>> Textbooks state that, in the absence of a minimum wage, a worker is paid his “marginal product of labour”, which means the value of what he produces. This sentence is just wrong. First of all a rational actor will not intentionally pay a worker the value of their production; you get no profit. Textbooks actually say that a worker will be paid no more than the marginal product of labor, and if labor is in short sup…
>> Textbooks state that, in the absence of a minimum wage, a worker is paid his “marginal product of labour”, which means the value of what he produces. > This sentence is just wrong. First of all a rational actor will not intentionally pay a worker the value of their production; you get no profit. In the econ 101 textbook simplified free market that the author is refering to firms do not make any economic profit. If…
It is true regardless that the theory predicts an economic profit of zero, but to see why it's necessary to consider the rental cost of capital. Also, since many firms own rather than rent capital, they often have a positive accounting profit even though economic profit is zero (economic profit is less since it takes into account opportunity cost: if you are using your own capital then you can't rent it out to someone else).