1.2.4 Supply Flashcards
Define supply
The quantity of a good or service that firms are willing to sell at a given price over a given period of time
What causes movements along the supply curve
A change in price
What causes shifts of the supply cause
Changes in the conditions of supply
- changes to costs of production
- improvements in tech
- changes to productivity of factor of production
- numbers of suppliers in a market
- indirect taxes and subsidies
- changes to prices of other good
REF TO PAGE 22/23 CGP
What is the law of supply
Ceteris Paribus, as the price of a good increases, quantity supplied increases; conversely as the price of a good decreases, quantity supplied decreases
- this is because at a higher price, suppliers would earn a greater profit margin per unit sold
What does the supply diagram assume
1) firms are motivated to produce by profit
2) the cost of producing a unit increases as output increase
Why does the supply curve slope upwards from left to right
As price increases, quantity supplied increases because at higher price, profit margin earned per unit is greater and firms want to maximise profit
How does number of firms in a market affect supply
More firms in a market means greater competition and therefore supply increases (rightwards shift in s curve)