The utility function can be used to derive the demand function, and both concepts relate to utility maximization.

The demand curve, on the other hand, is a graph that shows the relationship between what a product costs and how much a consumer is willing and able to pay at a given price. The demand curve ...

Conventionally, the money demand function is estimated using a regression of the logarithm of money demand on either the interest rate or the logarithm of the interest rate. This equation is presumed ...

Empirically estimated demand systems frequently fail to satisfy the appropriate theoretical curvature conditions. We propose and estimate two demand systems for which these conditions can be imposed ...