WEEK 4 Flashcards
A relation between the price of a good and the quantity that consumers are willing and able to buy per period, other things constant.
Demand
The quantity of a good that consumers are willing and able to buy per period relates inversely, or negatively, to the price, other things constant.
Law of Demand
When the price of a good falls, that good becomes cheaper compared to other goods, making consumers more willing to substitute that good for other goods.
Substitution Effect of a Price Change
A fall in the price of a good increases the quantity demanded for a second reason. Suppose you earn Php3,000 a week from a part-time job, so Php3,000 is your money income.
Income Effects of a Price Change
The number of pesos a person receives per period, such as Php3,000 per week. is simply a person’s income in money or rather the dollar amount of a person’s income.
Money Income
Measured by the goods and services it can buy; real income changes when the price changes. refers to the income an individual or group receives after an adjustment is applied for inflation (a sustained increase in the price levels of goods and services).
Real Income
A curve showing the relation between the price of a good and the quantity consumers are willing and able to buy per period, other things constant.
Demand Curve
The amount of a good consumers are willing and able to buy per period at a particular price, as reflected by a point on a demand curve.
Quantity Demanded
The relation between the price of a good and the quantity purchased per period by an individual consumer, other things constant.
Individual Demand
The relations between the price of a good and the quantity purchased per period by all consumers in the market, other things constant; sum of the individual demands in the market.
Market Demand
5 FACTORS OF DEMAND
- Changes in Income (the income effect)
- Prices or availability of substitutes (substitution effect)
- Prices or availability of complementary goods
- Changes in the number of buyers
- Changes in taste and preferences
when income goes up, consumers buy more. when income goes down, consumers buy less.
Changes in income (the income effect)
a substitute is a good that can be used in place of another.
Prices or availability of substitutes (substitution effect)
complementary goods are things that are often sold or used together
Prices or availability of complementary goods
more people (buyers), more sales
Changes in the number of buyers