Sunday, January 18, 2015

Supply and Demand

Demand

The quantities that people are willing and able to buy at various prices.

The Law of Demand

An inverse relationship between price and quantity demanded. 


Demand Schedule and Demand Curve

Displays the relationship of Price and Quantity demanded. 


Increase in demand - shift to the right. 
Decrease in demand - shift to the left.

What causes a "change in quantity demanded"? (ΔQD)   Δ in price

What causes a "change in demand"? (ΔD)

1) Δ in buyer's taste (advertising)
2) Δ in the number of buyers (population)
3) Δ in income
    A. Normal goods - goods that buyers buy more of when their income rises. 
    B. Inferior goods - goods that buyers buy less of when their income rises. 
4) Δ in the price of related goods.
    A. Substitute goods - goods that serve roughly the same purpose to buyers. 
                                    ex) Coca Cola and Pepsi
    B. Complimentary goods - goods that are often consumed together. 
                                    ex) Gasoline and automobile, fries and ketchup. 
5) Δ in expectations - thinking about the future. 


Supply

The quantities that producers or sellers are willing and able to produce or sell at various prices.

The Law of Supply

There is a direct relationship between price and quantity supply. (Price increases, quantity increases) 

Supply Schedule and Supply Curve



What causes a "change in supply"? ( ΔQS)       Δ in price

What causes a "change in supply"? ( ΔS) 

1)  Δ in weather
2)  Δ in technology
3)  Δ in taxes or subsidies 
4)  Δ in cost of production
5)  Δ in number of sellers
6)  Δ in expectations




2 comments:

  1. Great presentation! Excellent use of pictures and kept the vocabulary at a basic understanding. The color stands out, and is an attention-getter. Only complaint is that you can use a higher resolution picture. Great nonetheless!

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  2. No complaints! Your blog is spectacular Kymberli! Your notes were extremely accurate and very easy to understand. On top of your excellent note taking your addition of pictures made the lesson easier to follow and grasp. I commend your effort and applaud your time and creativity poured into this.

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