Vocab Quiz Elasticity Flashcards
PED
A measure of the responsiveness of the quantity demanded of a good or service to a change in its price
Elastic demand
Where a change in the price of a good or service leads to a proportionately larger change in the quantity demanded of the good or service in the opposite direction. (PED is greater than one.)
PES
A measure of the responsiveness of the quantity supplied of a good or service to a change in its price.
Elastic supply
Where a change in the price of a good or service leads to a proportionately larger change in the quantity supplied of the good or service in the same direction. (PES is greater than one.)
Inelastic demand
Where a change in the price of a good or service leads to a proportionately smaller change in the quantity demanded of the good or service in the opposite direction. (PED is less than one.)
Inelastic supply
Where a change in the price of a good or service leads to a proportionately smaller change in the quantity supplied of the good or service in the same direction. (PES is less than one.)
Unit Elastic Demand
Occurs when a change in the price of a good or service leads to an equal and opposite proportional change in the quantity demanded of the good or service (PED = 1).
Unit Elastic Supply
Occurs when a change in the price of a good or service leads to an equal proportional change in the quantity supplied of the good or service (PES = 1).
Primary commodities
Raw materials that are produced in the primary sector. Examples include agricultural products, metals and minerals.
Income elasticity of demand (YED)
The responsiveness of demand for a good or service to a change in income.
Normal Good
A good where the demand for it increases as income increases.
Luxury Goods
Goods that are not considered essential by consumers therefore they have a price elastic demand (PED > 1), or income elastic demand (YED > 1).
Inferior goods
Lower quality goods for which higher quality substitutes exist; if incomes rise, demand for the lower quality goods decreases.
Primary Sector
Anything derived from the factor of production land. Includes agricultural products, metals and minerals.