Marginal Revenue Product of Labour Calculator

Problem → model → reason → result

What problem does this model solve?

Calculate the additional revenue generated by one more unit of labour.

Why does the model apply?

In a competitive output market, product price approximates marginal revenue. A profit-maximising firm hires labour while marginal revenue product is at least the marginal labour cost.

What assumptions does it make?

The variables must describe the same market, firm, period or decision context and use consistent units. Any behavioural condition implied by the formula—such as other factors remaining unchanged—must be reasonable for the question being asked.

Formula

Marginal revenue product of labour = Marginal product of labour × Marginal revenue per output unit

Calculation and working

The calculator substitutes your inputs locally and displays the numerical result. Change one input at a time to test which relationship drives the result.

What does the result mean?

Interpret the result in the economic context named above, including its sign, magnitude, units and time period. A calculated relationship is not by itself evidence that one variable caused another.

Worked example

If an added labour hour produces 4 units worth $25 each, its marginal revenue product is $100, the maximum wage under the simple hiring rule.

When does this model not apply?

Do not use the result when the input definitions, units or formula assumptions do not match the real situation. This is an educational model, not financial, investment, tax or policy advice; verify material decisions against primary data and professional guidance.