As Revision Guide Flashcards
positive statement
based on facts, can be tested as true or false
normative statement
opinion or value judgement
allocative efficient
goods and services are optimal distributed
Derived demand
demand of one good depends on the demand for another good
Composite demand
multiple different uses (wheat for bread/wheat for biofuel)
Joint demand
Two goods are complementary and needed together
Price elasticity of demand
Measures the responsiveness of demand to a change in price
calculate PED
% change in Q.D / % change in price
Characteristics of elastic demand
Frequently bought, luxury goods, competitive markets
Characteristics of inelastic demand
Few substitudes, Necessities, Addictive, Small percentage of income
What kind of elasticity is admirable for companies?
Inelastic demand, because they can rise prices without losing too much Q.D
Income elasticity of demand
measures the responsiveness of demand to changes in income
Calculate income elasticity
% Change in Q.D / % Change in Income
Types of goods
Inferior goods, normal goods, luxury goods, income inelastic
Inferior goods
Increase in income leads to an fall in demand