I always see stuff like this in monopsony papers:
"The average establishment charges a markdown of 1.53 — that is, a plant’s marginal revenue product of labor is on average 53 percent higher than the wage it pays its workers. To put these numbers in perspective, a markdown of 1.53 implies that a worker receives about 65 cents on the marginal dollar generated. Furthermore, we find that a large number of manufacturing plants exert labor market power. In fact, half of the manufacturing plants charge a markdown that is equal to or larger than 1.364 (73 cents on the dollar)."
I can't imagine all of these businesses are generating net operating profits of 26% to 35%. A worker on an assembly line is part of a whole system of investment, administration, and operation, and so if a thing sells for $1 but the worker receives 65 cents, but the firm profits 10 cents, then the worker's wage is not marked down from their product of labor; rather the workers measured are not contributing the full marginal dollar.
Are all of the businesses out there running egrigious 30%-ish long-run profit margins?