1. Understanding Demand 1

2. The Circular Flow Diagram
Laptop Computers –
Households
Want To Buy (Demand)
Them and Firms Want
to Sell (Supply)Them.
Shows the relationship between what people want to buy and what firms are willing to sell
Product
Market
Supply
Demand
Firms
Households
Demand
Supply
To Produce Laptop Computers –
Firms Want
To Buy (Demand)
Labor and Households
Want to Sell (Supply) it.
Resource
Market

3. What is Demand?
As discussed earlier - there is a limited amount of goods out there. So how do we decide what we want? The concept of demand captures this issue. Demand is made up of two elements:
Desire for Goods and Services
Means to purchase those Goods and Services

4. Law of Demand
Law of Demand - the price of a product (or service) is inversely related to the quantity demanded, ceteris paribus. 11

5. Ceteris Paribus Latin for “All other things held constant”
The demand schedule is only taking into account the changes in price.
Not yet considering advertising or the hundreds of other factors that could change demand.

6. Demand Schedule and Curve
A table or diagram showing the relationship between the price of a good and the quantity demanded per period of time, ceteris paribus. 6

7. Demand Schedule 10

8. Demand Curve
P($) A 20 B 15 C 10 D 5
Qd per month 5 10 15 19

9. Market Demand Schedule25