The equity-efficiency trade-off describes the conflict that occurs when policies designed to improve fairness (equity) unintentionally lower economic productivity (efficiency), and the other way around.

Key points include:

• Progressive taxes that are too high may lower the motivation for people to work harder or invest money.
• Welfare benefits that are very generous might discourage people from looking for jobs.
• Societies must try to find an acceptable balance between these two competing goals.
• This concept is central to important discussions regarding tax policy, social security, and healthcare.