Which of the following economic concepts refers to the change in total output resulting from a unit change in a variable input, keeping all other inputs constant?

💡 Solution & Explanation

Marginal product measures the additional output generated by employing an extra unit of a variable input while holding all other factors constant, reflecting the law of variable proportions. Options concerning marginal revenue product involve total revenue changes, whereas average product calculates total output divided by total units of the input. Total physical product simply denotes the overall output produced. Microeconomic theory relies heavily on marginal analysis for firm optimization.