econ_2106_20120707202533 / Marie Smith Flashcards
What is demand?
Demand determines the quantity of a good or service that people want to purchase in a given amount of time.
What is supply?
Supply determines the quantity of a good or service that businesses are willing to sell in a given amount of time.
Demand refers to whose behavior in the market?
Demand reffers to the behavior of consumers in the market.
Supply refers to whose behavior?
Supply refers to the behavior of producers.
What are the determinants of demand?
The determinants of demand for a product are: the price of the good, the price of substitute goods, the price of complementary goods, tastes and preferences, a consumers income, and expectations about the future.
What is the demand function?
Mathematical relationship that predicts the quantity of a good demanded as a function of each of the factors that influence consumer behavior.
How is the demand function written?
The demand function is a list of all the demand determinants using symbols.
What is the law of demand?
The law of demand is an observation that the quantity demanded of most goods and services exhibits an inverse relationship with it’s price. When price increases the quantity purchased generally decreases. When the price decreases, the quantity demanded increases.
How does a change in the price of a complement affect demand for a good?
A change in the price of a complement causes demand to change in the opposite direction.
How does a change in the price of a substitute affect demand for a good?
A change in the price of a substitute causes demand for the original good to change in the same direction.
How does an increase in income affect demand for a normal good?
An increase in income increases demand for a normal good.
How does an increase in income affect demand for an inferior good?
An increase in income decreases demand for an inferior good.
How is demand for a good affected when tastes or preferences change?
If tastes or preferences for a good change, demand for that product change in the same direction.
How do expectations about future prices affect demand for a good?
Expectations about future prices cause demand in the present to change in the opposite direction from the expectation.
What is the demand curve?
The demand curve is the graphical relationship between the price of a good and the quantity demanded, ceteris paribus.
Which way does the demand curve slope?
A demand curve is downward sloping, as the price of a good falls, the quantity demanded increases and as the price of a good increases, the quantity demanded decreases.
What is the substitution effect?
Consumers purchase more substitute goods when the price of a good increases.
What is the income effect?
Consumers purchase less of the good when it’s price increases due to decreasing wealth.
When the price of a good increases but income stays the same what happens to the consumers purchasing power?
The consumer’s purchasing power is less because their income will be able to purchase less of the good due to rising price of the good.