Supply/Demand Notes (In-Class Lecture) Demand- Demand: The amount of a good/service that consumers are willing and able to buy at a given price and time. Price is a big factor is quantity demand; lower prices means the demand is higher, while higher prices means the demand is lower Example: Polo Shirts at $18.99 = Higher QTY. Demand Polo Shirts at $38.99 = Lower QTY. Demand Lower prices mean more buying^^ Law of Demand: An increase in a good?s price causes a decrease in qty. demanded Elastic Demand: A small change in price which affects qty. demand Example: Fast Food Coupons that are given out via mailing (restaurants experience more qty. demand/customers during this time because of lower prices the coupons offer) *Are all goods considered elastic?