1.2.1 demand Flashcards
what is demand
demand for a good or service is the quantity that customers are willing and able to buy at a given price in a given period of time
what is a normal good
a normal good is one where,if price rises, demand will fall and vice versa i.e. there is a negative correlation
how can the relationship between price and quantity demanded be shown
in a demand curve
how can the relationship between price and quantity demanded be shown
in a demand curve
what is a demand curve
a demand curve is a graphical representation between price and quantity demanded
what does the demand curve show
it shows the quantity demanded for a good , at any given price, over a period of time.
what does an increase in price lead to
a decrease in demand
what else impacts demand other than price
- Population
- Advertising
- Substitutes
- Income(disposable
- Fashions and tastes
- Income tax
- Complements
ALSO competitor and government action and seasonal factors
what is a substitute
a substitute product acts as an alternative,therefore creating competition(e.g if proce of good A increases,the demand for good B will increase like cola and pepsi)(positive coralation)
what is a complementary product
a complementary product is bought alongside a good or service
-if the price of good A increases,the demand for good B will decrease.for example fish and chips or phone and charger
(there is a negative coralation)
how does income effect price changing
- a fall in price increases the purchasing power of customers
- allowing customers to buy more with a given budget
- for normal goods,demand rises with an increase in incomes
how does substitutes effect price changing
- a fall in the price of good x makes it relatively cheaper compared to substitutes
- some customers will switch to x leading to higher demand
- much depends on whether products are close substitutes
how does necessities changes in consumer income
it is less likely that demand for these will change in relation to income e.g would start buying more milk or less soap if your income changed?
how does luxuries changes in consumer income
if income increase customers may be able to afford more luxuries increasing demand,equally if income fall these may be the first items to cut e.g not booking a holiday
how does inferior goods effect the change in consumer income
if incomes increase demand may decrease as customers switch to being able to aford a better quality product e.g would you stop buying own brand brand tesco beans and start buying heinz