ECONOMICS (CBSE/UGC NET)

Detailed explanation-1: -More fuel-efficient cars means there is less need for gasoline. This causes a leftward shift in the demand for gasoline and thus oil. Since the demand curve is shifting down the supply curve, the equilibrium price and quantity both fall.

Detailed explanation-2: -Economists use the term demand to refer to the amount of some good or service consumers are willing and able to purchase at each price. Demand is based on needs and wants-a consumer may be able to differentiate between a need and a want, but from an economist’s perspective they are the same thing.

Detailed explanation-3: -What Is Quantity Demanded? Quantity demanded is a term used in economics to describe the total amount of a good or service that consumers demand over a given interval of time. It depends on the price of a good or service in a marketplace, regardless of whether that market is in equilibrium.