When a demand curve is expressed in log-linear form, such as log(Q) = a - b log(P) + b2 log(P2) + c log(I), the coefficients of the demand determinants correspond to:

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In a log-linear demand curve, the coefficients (such as -b, b2, and c in the given equation) represent the elasticity of demand with respect to each determinant (price P, another price P2, and income I, respectively). Elasticity measures the percentage change in quantity demanded resulting from a one percent change in the determinant, which is exactly what these coefficients indicate in a log-linear model.

When a Demand Curve Is Expressed in Log-Linear Form, Such