Economics Unit 2-3

Who demands in the product market?

Who produces in the market?


Demand: Demand is the different quantities of goods that consumers are willing and able to buy at different times

Law of Demand: An Inverse relationship between demand and supply


3 separate behavior patterns

  1. Substitution effect: Price goes up, consumers buy less, and find cheaper items

  2. The income effect: When a price goes up or down, it will impact purchasing power

  3. Law of diminishing marginal utility: As you consume more units of goods, the additional satisfaction from each additional unit will eventually start to decrease


The Demand Curve

A demand curve is a graphical representation of a demand schedule

It’s a downward slope showing the inverse relationship between price and quantity demanded.


CHANGES IN PRICE DON’T SHIFT THE CURVE


5 Shifters of the demand curve:

  1. Changes in income

  2. Number of consumers

  3. Expectations about future prices

  4. price of related goods

  5. Tastes and Preferences


Substitutes are goods used in place of one another

Complements are two goods that are bought and used together (If the price for one increases, they both decrease)


Income

Normal Goods

As income increases, we will buy more 

As income falls, demand falls


Inferior Goods:

As income increase demand falls

As income falls, demand increases 


Supply: The Different quantities of a good that sellers are willing and able to sell at different prices


Law of Supply: A direct or positive relationship between price and quantity supplied

As price increases the quantity producers make increases

As price falls the quantity producers make falls


Shifters of Supply

  1. Prices/Availability of inputs

  2. Number of sellers

  3. Technology

  4. Government action

  5. Opportunity Costs of Alternative Products

  6. Expectations of future policies


Whenever there is a surplus, producers lower prices

When there is a shortage, producers raise prices


Price Ceiling: The maximum legal price a seller can charge for a product

Price Floor: Minimum legal price a seller can sell a product for