Economic rent is the extra income a worker earns above their transfer earnings. Transfer earnings represent the minimum payment required to keep a worker in their current job, also known as their opportunity cost.

Formula:
Economic Rent = Actual Wage − Transfer Earnings

Key concepts:

• For example, if a worker earns 50,000 but only needs 30,000 to stay in the job, their economic rent is 20,000.
• Economic rent happens because the supply of specific labour is limited, or inelastic, in the short run.
• The more scarce and unique a worker’s skills are, the higher the economic rent they can earn.
• In competitive markets, economic rents are often bid away over time as more people enter high-paying professions.

Why economic rent matters:

• It explains why some individuals earn significantly more than their next-best job alternative.
• It helps economists understand how income is distributed between basic wages and surplus earnings.
• In the long run, economic rent usually decreases as more workers train for specialized, high-paying roles, increasing supply.