A demand curve shows the relationship between quantity demanded and price in a given market on a graph. A supply curve shows the relationship between quantity supplied and price on a graph. The law of supply says that a higher price typically leads to a higher quantity supplied.
What is the relationship between demand and supply?
There is an inverse relationship between the supply and prices of goods and services when demand is unchanged. If there is an increase in supply for goods and services while demand remains the same, prices tend to fall to a lower equilibrium price and a higher equilibrium quantity of goods and services.
When do you get movement along the demand or supply curve?
You get a movement along the demand or supply curve, when all factors affecting demand and supply are constant and ONLY the PRICE changes. With regards to a shift, the rule to remember is: You get a shift of the demand or supply curve, when ANY ONE of the MANY FACTORS affecting demand and supply changes.
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How does expansion in supply affect the supply curve?
Expansion in supply refers to a rise in the quantity supplied due to increase in the price of the commodity, other factors remaining constant. It leads to an upward movement along the same supply curve. Extension in supply is also known as ‘Increase in Quantity Supplied’.
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What happens when both demand and supply shift?
If both the demand and supply shift, then you will not be able to predict the direction of the new equilibrium price and quantity. For example, if there is an increase in both demand and supply (curves shifts to the right), then the new equilibrium can either be at a point where: Price decreases but quantity increases (Point A)
Which is an example of an extension of the demand curve?
With this change in demand, there is a movement in the demand curve from point B to point C which is known as an extension of the demand curve. Similarly, when the price of the soda increases from Rs. 30 to Rs. 40, the demand for the soda falls from 20,000 units to 10,000 units.
