Chapter 3 Flashcards
Demand
A relationship between the price of a good and the quantity that consumers are willing and able to pay during a given period (o.t.c.)
Law of Demand
The quantity of a good demanded during a given period relates inversely to its price (o.t.c.)
Substitution Effect of a Price Change
When the price of a good falls, consumers substitute that good for other goods, which become relatively more expensive
Money Income
The number of dollars a person receives per period, such as $400 per week
Real Income
Income measured in terms of the goods and services it can buy
Income Effect of a Price Change
A fall in the price of a good increases consumer’s real income making consumers more able to purchase goods; for a normal good, the quantity demanded increases
Normal Good
A good, such as new clothes for which demand increases, or shifts rightward, as consumer incomes rise
Demand Curve
A curve showing the relation between the price of a good and the quantity demanded during a given period (o.t.c.)
Quantity Demanded
The amount demanded at a particular price, as reflected by a point on a given demand curve
Market Demand
Sum of the individual demands of all consumers in the market
Inferior Good
A good, such as used clothes, for which demand decreases, or shift leftward, as consumer income rise
Substitutes
Goods, such as Coke and Pepsi, that are related in such a way that an increase in the price of one shifts the demand for the other rightward
Complements
Goods, such as milk and cookies, that are related in such a way that an increase in the price of one shifts the demand for the other leftward
Tastes
Consumer preferences; likes and dislikes in consumption; assumed to be constant along a given demand curve
Movement along a Demand Curve
Change in quantity demanded resulting from a change in the price of a good
Shift of a Demand Curve
Movement of a demand curve right or left resulting from a change in one of the determinants of demand other than the price of the good
Supply
A relationship between the price of a good and the quantity that producers are willing and able to sell during a given period (o.t.c.)
Law of Supply
The quantity of a good supplied during a given period is usually directly related to its price (o.t.c.)
Supply Curve
A curve showing the relation between the price of a good and the quantity supplied during a given period
Quantity Supplied
The amount offered for sale at a particular price, as reflected by a point on a given supply curve
Individual Supply
The supply of an individual producer
Market Supply
The sum of individual supplies of all producers in the world
Relevant Resources
Resources used to produce the good in question
Alternative Goods
Other goods that use some or all of the same resources as the good in question