Supply, Price & Quantity
#economics #supply
Introduction to Supply
Supply is the amount of a good/service that a producer is willing and able to supply at a given price in a given time period.
A supply curve is a graphical representation of the price and quantity supplied by producers.
* If data were plotted, it would be an actual curve. Economists, however, use straight lines so as to make analysis easier.
The supply curve is sloping upward as there is a positive relationship between the price and quantity supplied. *Rational profit maximising producers would want to supply more as prices increase in order to maximise their profits.
Individual and market supply
Market supply is the combination of all the individual supply for a good/service. * It is calculated by adding up the individual supply at each price level. The Monthly Market Supply of Bread From 4 Bakeries in a Small Town
Individual and market supply can also be represented graphically
Market supply for smart phones in December is predominantly the combination of iPhone and Samsung supply
Diagram analysis
In New York City, the market supply for smart phones in December is predominantly the combination of iPhone and Samsung supply.
At a price of $1000, the supply of iPhones is 300 units and the supply of Samsung phones is 320 units.
At a price of $1,000, the market supply of smart phones in New York City during December is 620 units.
Movements Along a Supply Curve
If price is the only factor that changes (ceteris paribus), there will be a change in the quantity supplied (QS). * This change is shown by a movement along the supply curve.
A supply curve showing an extension in quantity supplied (QS) as prices increase and a contraction in quantity supplied (QS) as prices decrease
Diagram analysis
An increase in price from £7 to £9 leads to a movement up the supply curve from point A to B. * Due to the increase in price, the quantity supplied has increased from 10 to 14 units. * This movement is called an extension in QS.
A decrease in price from £7 to £4 leads to a movement down the supply curve from point A to C. *Due to the decrease in price, the quantity supplied has decreased from 10 to 7 units. * This movement is called a contraction in QS.
What Is Supply? Supply is a fundamental economic concept that describes the total amount of a specific good or service that is available to consumers.
The supply curve slopes upward because as a product's price rises, the business would tend to be more willing to make it. Also, since businesses are efficient and would exhaust the cheapest production inputs first, the cost of production tends to rise as output increases.
The law of supply is a basic economic concept. It states that an increase in the price of goods or services results in an increase in their supply. Supply is defined as the quantity of goods or services that suppliers are willing and able to provide to customers.
Extension in supply :A rise in supply of a commodity due to rise in its price other things remaining unchanged. Contraction in supply :There is a fall in supply due to fall in price other factors remaining Constant.