This concept is a relationship between the price of the good or service and the amount desired, all other factors being constant.
The effective form of this concept occurs when purchasers are constrained in another market. This aggregate form of this concept can be seen as the total of this concept for a country's GDP when inventory levels are static. A namesake curve can be drawn from a function representing this concept at a certain price. This concept is a relationship between the price of the good or service and the amount desired, all other factors being constant. For 10 points, name the economic concept that is often contrasted with supply.
The effective form of this concept occurs when purchasers are constrained in another market.
{demand}