This document provides information about consumer behavior and demand analysis. It defines key concepts like utility, total utility, marginal utility, law of diminishing marginal utility, and law of equi-marginal utility. It explains how consumers aim to maximize total utility given budget constraints. Indifference curves and marginal rate of substitution are introduced to graphically represent consumer preferences. Consumer equilibrium occurs where the budget line is tangent to the highest indifference curve, allowing consumers to obtain maximum satisfaction from their income.