Definitions for "Producer surplus"
the total revenue obtained from using a productive resource minus all opportunity costs of production (opportunity costs of entrepreneurs' skills, labor, capital, and ownership of natural resources).
The difference between the revenue of producers and production cost, measured as the area above the supply (or marginal cost) curve and below price, out to the quantity supplied, and net of fixed cost and losses at low output. If input prices are constant, this is profit; if not, it includes gains to input suppliers, such as labor. Normally useful only as the change in producer surplus.
the difference between the total amount earned from a good (price times quantity sold) and the production costs.