Transcription of Chapter 2 Demand and Supply Analysis
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Chapter 2 Demand and Supply Analysis
Chapter 2 Demand and Supply Markets Definition Assumptions of the Market Demand Market Supply Market Crude Oil Prices in US dollars3 Oil MarketWhy do oil price fluctuate? in Demand Weak economic activity Increased efficiency Substitute toward other Reasons Middle East trying to fold market to keep prices low to make it hard for substitutes Wars in middle Production in America Decreased oil imports to become more energy independent 4 Competitive Markets5 Definition:Markets were sellers and buyers are small and numerous, so they take the market price as given when they decide how much to buy and Market market:many buyers and sellers Implies buyers and sellers are price Products:consumers perceive the product to be identical so don t care who they buy it Information about price:consumers know the price of all Access to Resources:everyone has access to the same technology and inputs.
Now lets see how to graph supply and demand n Some folks like to rewrite so Q is on the RHS (inverse demand or supply function) Qd= 500 –4p OR p = 125 -Qd/4 QS= -100 + 2p OR p = 50 + QS/2 n But, I like to find the intercepts when I know I have a straight line … § if Qd=0 p=125, if p=0 Qd=500 § If QS =0 then P=50 27
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