The change illustrated in the graph is a decrease in supply.
What is the supply curve?
The supply curve is a positively sloped curve that shows how quantity supplied changes with price of the good. All things being equal, the higher the price of the good, the higher the quantity supplied.
What is a decrease in supply?
A decrease in supply is when the supply curve shifts to the left. Factors that cause a decrease in supply are:
- an increase in the price of inputs
- a decrease in the number of suppliers.
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