The Determinants of the Demand for Goods and Services
Description
A Levels Economics (Unit 1, 2 The Allocation of Resources in Competitive Markets) Mind Map on The Determinants of the Demand for Goods and Services, created by beth2384 on 30/12/2013.
The Determinants of the Demand
for Goods and Services
DEMAND= the amount consumers are willing and able to buy at each given price level
EFFECTIVE DEMAND= demand supported by the ability to pay for a good or service
MARKET DEMAND= total demand in a market for a good, the sum of all individuals' demand, at each given price
NORMAL GOODS= good or services that will see an increase in demand when incomes rise
INFERIOR GOODS= goods or services that will see demand fall when income rises
COMPLEMENTARY PRODUCTS= goods that are consumed together, for example bacon and egg
COMPOSITE DEMAND= a good that is demanded for more than one purpose so that an increase in demand for one purpose
reduces the available supply for the other purpose, typically leasding to higher prices e.g. milk used in butter and cheese
DERIVED DEMAND= when demand for one good or service comes from the demand for another good or
service. The demand for cars stimulates the demand for steel, therefore the demand for steel is derived demand
The Demand Curve
The demand curve shows the
relationship between the price and
the amount consumers intend to
buy at each given price level
it is inversely proportional
as the higher the price, the
lower the quantity demand
Individual and Market demand
Each consumer may buy as much of a product as the deem as worth it at each given price level
Choices will vary from person to person depending on preferences and income
We can plot a demand curve based on satisfaction or utility they get from each unit of a product
To identify the market demand curve for a product or service we must calculate the sum of demand from all individuals together
Contractions and
Extensions in Demand
When price rises, there is a contraction in demand
When price falls, there is an extension in demand
These are movements
ALONG the demand curve
Caused by changes in price
Shifts in Demand
Caused by changes in
the conditions of demand
Rightward shift of Demand
Causes (for normal goods)
Leftward shift of Demand
price of substitute good
price of a good in competitive demand
increases
price of a complementary good
decreases
personal disposable income
increase (unless it's an inferior good, e.g. bus travel)