# Effectual Demand ## Definition The demand of those willing and able to pay the whole value of rent, labour, and profit required to bring a commodity to market, sufficient to effectuate its bringing to market, as distinguished from mere desire or absolute demand. ## Source Chapter Book I, Chapter 7 ## Context Introduced as the key determinant of market price, contrasting with "absolute demand" through the example of a poor man's desire for a coach and six. ## Economic Domain Exchange ---