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Math Help - Mirco - Demand Curve Shift or Change ?

  1. #1
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    Mirco - Demand Curve Shift or Change ?

    Darn, I'm in deep water with demand curve. Why is the graph change along the movement but not shift or vice versa ?

    Suppose the price of chicken goes down. What will happen to Fred's demand for chicken ?

    http://www1.esc.edu/personalfac/fmen...ics/demand.htm
    This says this is not a change in demand - it just a change in amount Fred will buy.
    Last edited by mr fantastic; October 18th 2009 at 12:27 AM. Reason: m --> r and water is added, removed excessive smiley and removed superfluous url tags
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  2. #2
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    Generally
    Fred will change his demand along the demand curve with a change in price, holding all else constant.
    If there is a change in other things, such as the price of a complement/substitute good, or research shows that chicken is good for you but red meat isn't etc. Then the whole demand curve will shift for a given price point and he will demand more/less depending on the direction of the shift in the demand curve
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  3. #3
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    Next one, shortage & surplus. Shouldn't shortage the price rises up bcos the quantity demanded > supplied. In reality this happens always, right ?
    Same goes to surplus
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