Economists make predictions about individual behavior based on the assumption that people exploit opportunities to make themselves better off.The fact that different individuals make different choices when confronted with the same situation implies that this assumption is often violated.

Individual Behavior

The actions or reactions of an individual in response to external or internal stimuli.

Economists

Professionals who study the production, distribution, and consumption of goods and services, analyzing how economies work and how economic agents behave.

Assumption

A belief or statement taken for granted without proof, often forming the basis for further reasoning or arguments.