THEME 1 SECTION 2: ( THE MARKET ) Flashcards
What factors can lead to changes in demand?
- Substitutes
- Income
- price
- Demographic
- Season
What are 3 factors that can lead to change in supply?
- Technology changes
- Productivity
- Price
- Tax
- External shock
What happens when supply exceeds demand?
Prices will fall in order for surplus supply to be sold easier
What happens when demand exceeds supply?
Prices will rise rise as there is less to sell on and more money needs to be made to make more supply.
What is the difference between a change in price and a change in supply and demand on a graph?
- Price changes cause a movement along the curve, supply and demand changes cause the curve to shift.
- A rise in supply or demand means a shift right
- A fall in supply or demand means a shift left
Define PED
PED= price elasticity of demand, it shows how responsive demand is in relation to price changes. Showing whether an item is elastic or inelastic.
-Helps to price items
Define YED
YED= income elasticity of demand, shows how responsive demand is to income changes on certain products .
Showing whether they’re normal goods, luxuries or inferior
-help when economic change occurs
What figures can show whether a product is elastic or inelastic in regards to PED?
- IF the figure is more than one, or if in the equation the quantity demanded is greater than the price change then it is an ELASTIC good
- IF the figure is less than one, or if in the formula the quantity demanded is less than the price change it is INELASTIC
What figures can show whether a product is a necessity/normal , luxury or an inferior good?
- IF it is more than 1 (positive YED) = A luxury good
- IF it is less than 1 but more than 0 (Positive YED)= A normal/necessity
- IF its a negative figure that’s less than 0 ( negative YED) = inferior
Equation for PED
%change in demand / %change in price
Equation for YED
% change in demand / % change in income
what is the relationship between PED and total revenue?
Price and total revenue have a negative relationship, when demand is elastic = increases in price will lead to decreases in total revenue.