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Whether the product market or the labor market, what happens to the equilibrium price and quantity for each of the four possibilities: increase in demand, decrease in demand, increase in supply, and decrease in

supply.

Short Answer

Expert verified

Increase in demand increases equilibrium price & quantity. Decrease in demand decreases equilibrium price & quantity. Increase in supply decreases equilibrium price & increases equilibrium quantity. Decrease in supply increases equilibrium price & decreases equilibrium quantity.

Step by step solution

01

Basic Market Concepts 

Market is a place where buyers & sellers interact with each other to transact goods & services.

Demand is inversely related to price & curve is downward sloping, supply is directly related to price & curve is upward sloping.

Market is at equilibrium when demand & supply are equal, the curves intersect

02

Change in Demand 

Increase in demand shifts the demand curve rightwards, which creates excess demand. It creates competition among buyers and increases the equilibrium price and equilibrium quantity

Decrease in demand shifts the demand curve leftwards, which creates excess supply. It creates competition among sellers and decreases the equilibrium price & quantity.

03

Change in Supply 

Increase in supply shifts the supply curve rightwards, which creates excess supply. It creates competition among sellers and decreases the equilibrium price, and increases equilibrium quantity.

Decrease in supply shifts the supply curve leftwards, which creates excess demand. It creates competition among buyers and increases the equilibrium price & decreases equilibrium quantity.

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