Definition

Marginal Rate of Substitution (MRS)

The Marginal Rate of Substitution (MRS) represents the trade-off an individual is willing to make between two goods, such as grain and free time, while maintaining the same level of utility. It quantifies how much of one good a person is willing to give up to obtain an additional unit of another. At any given point on an indifference curve, the MRS is equal to the absolute value of the curve's slope.

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Updated 2026-05-02

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