Market forces Flashcards
what variables influence the demand for goods and services
- the substitution effect
- the income effect
explain the income effect
the income effect is a change in the quantity demanded that results from an effect of a change in a price of good or service on consumer purchasing power
how does the income effect influence demand?
Normal goods: as income rises the demand for normal goods increase, as income decreases, so does the demand for normal goods
Inferior goods: as income decreases, the demand for inferior goods increase. As income increases, the demand for inferior goods decreases.
explain the substitution effect
the change in the quantity demanded that results from a change in price, making the good or service more or less expensive in comparison to substitutes
state the law of demand
ceteris paribus, the quantity of a product demanded increases when the price falls and decreases when prices rise
with reference to the demand curve what happens when the quantity demanded changes
movements along the curve
with reference to the demand curve what happens when demand changes
the curve shifts
state the law of supply
when the price of a product rises, the quantity supplied will increase, and decrease when prices decrease.
what causes a supply curve to shift?
changes in the prices of inputs
technology
the price of substitutes
expected future prices
number of firms in the market
what is technological change?
a change in the ability of a firm to produce output with a given quantity of inputs.
what is productivity?
Productivity is the output produced per unit of input
what is the difference between a change in supply and a change in the quantity supplied?
a change in supply refers to a shift in the supply curve
a change in the quantity supplied refers to movements along the demand curve
what variables cause the demand curve to shift
changes in:
income
prices of related goods
tastes
population
demographics
what is market equilibrium
where demand curve intersects the supply curve
what is a competitive market equilibrium
equilibrium in a market with many buyers and sellers