BEC 5 Market influence Flashcards
(122 cards)
Demand curve
maximum quantity of a good that consumers are willing and able to purchase at each and every price
Quantity demand
quantity of a good individuals are willing and able to purchase at each and every price
Change in quantity demanded
change in the amount of a good demanded resulting from a change in price
Change in demand
change in the amount of a good demanded resulting from a change in something other than the price of the good
Fundamental law of demand
price of a product and the quantity demanded of that product are inversely related. As the price of the product increases, the quantity demanded decreases.
Quantity demanded is inversely related to price for two reasons
- Substitution effect - consumers tend to purchase less of goods when their price rises in relation to the price of other goods.
- Income effect - prices are lowered with income remaining constant, people will purchase more of all of the lower priced products
Factors that shift demand curves
- Changes in wealth
- Changes in the price of related goods
- Changes in consumer income
- Changes in consumer tastes or preferences for a product
- Changes in consumer expectations
- Changes in the number of buyers served by the market
Supply curve
the maximum quantity of a good sellers are willing and able to produce at each and every price.
Quantity supplied
the amount of a good that producers are wiling and able to produce at each and every price
Change in quantity supplied
a change in the amount producers are willing and able to produce resulting from a change in price
Change in supply
a change in the amount of a good supplied resulting from a change in something other than the price of the good
Factors that shift supply curves
- Changes in price expectations of the supplying firm
- Changes in production costs
- Changes in the price or demand for other goods
- Changes in subsidies or taxes
- Changes in production technology
Market equilibrium
there are no forces acting to change the current price/quantity combination
Changes in equilibrium
a. Effects of a change in demand on equilibrium
b. Effects of a change in supply equilibrium
c. General effects of changes in demand and supply on equilibrium
Market clearing
market will eventually be cleared of all excess supply and demand (no price changes)
Changes and effects
- Change in Demand - 2. Change in Supply - 3. Effect on Equilibrium Quantity - 4. Effect on Equilibrium Price
- Increase - 2. Increase - 3. Increase - 4. ?
- Increase - 2. Decrease - 3. ? - 4. Increase
- Decrease - 2. Decrease - 3. Decrease - 4. ?
- Decrease - 2. Increase - 3. ? - 4. Decrease
Government intervention in market operations
- Price ceilings - established below the equilibrium price which causes shortages to develop. Price ceilings cause prices to be artificially low, creating a greater demand than the supply available
- Price floors - a min price set above the equilibrium price, which causes surpluses to develop. Price floors are min prices established by law, like min wage.
Elasticity of demand and supply
Elasticity is a measure of how sensitive the demand for or the supply of a product is to a change in price
Price elasticity of demand
% change in quantity demanded divided by % change in price
Measuring the price elasticity of demand
- Point method
2. Midpoint method
Point method
measures the price elasticity of demand at a particular point on the demand curve
Price Elasticity of Demand = % change in quantity demand / % change in price
Midpoint method
measures the price elasticity of demand between any two points on the demand curve
E = ((Q2 - Q1) / (Q2 + Q1)) / ((P2 - P1) / (P2 + P1))
Price inelasticity
- demand for a good is price inelastic if the absolute price elasticity of demand is less than 1.0.
- The smaller amt the less elastic
- 0.0 perfect inelastic
Price elasticity
the absolute price elasticity of demand is greater than 1.0