chapter 3 Flashcards
(38 cards)
Market
large numbers of independently acting buyers and seller come together to buy and sell standardized products
demand
A schedule or curve that shows the various amounts of a product that consumers are willing and able to purchase at each of a series of possible prices during a specified period of time
law of demand
The principle that, other things equal, an increase in a product’s price will reduce the quantity of it demanded, and conversely for a decrease in price
As price falls
quantity demanded rises
As price rises
quantity demanded falls
what kind of relationship is there between price and quantity demanded
negative or inverse (low of demand)
diminishing marginal utility
The principle that as a consumer increases the consumption of a good or service, the marginal utility (satisfaction) obtained from each additional unit of the good or service decreases.
Income effect
A change in the quantity demanded of a product that results from the change in real income (purchasing power) caused by a change in the product’s price.
substitution effect
suggest that buyers have an incentive to substitute a produce whose price has fallen for other products whose prices have remained the same
demand curve
its downward slop reflect the law of demand - people buy more of a product, service, or resource as its price falls
increase in demand- rightward shift
decrease in demand- leftward shift
Determinants of demand
- consumers’ tastes (preferences)
- the number of buyers in the markets
- consumers’ incomes
- The prices of related goods
- Consumer expectations
Number of buyers and how it affects demand
increase buyers: increase in demand
decrease buyers: decrease in demand
Normal goods
a good whose consumption increases when income increases and falls when income decreases
inferior good
a good or service whose consumption declines as income rises
charcoal grills consumption decreases because you can afford a gas grill
substitute good
one that can be used in place of another good
Haagen-dazs ice cream and ben and Jerry’s
complementary good
one that is used together with another good
lettuce and salad dressing
unrelated goods
independent goods
butter and golf balls
no effect on each other
Change in demand
shift of demand curve
Change in quantity demanded
movement from point a to b represent change in quantity demanded
equilibrium price
price where intentions of buyer and seller match
price at which quantity demanded and quantity supplied are equal
equilibrium quantity
quantity at which intentions of buyers and sellers match
quantity at which quantity demanded equals quantity supplied
surplus
The amount by which the quantity supplied of a product exceeds the quantity demanded at a specific (above-equilibrium) price
shortage
The amount by which the quantity demanded of a product exceeds the quantity supplied at a particular (below-equilibrium) price.
rationing of prices
ability of the forces of supply and demand to establish a price at which selling and buying decisions are consistent, so there is no shortage or surplus
Ex: