Demand or Quantity Demanded?

As you know there is an important difference between the two.  Demand refers to all prices and quantity demanded is at a particular price.  Here is a short video courtesy of the Khan Academy.

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3 thoughts on “Demand or Quantity Demanded?

  1. So according to tis video, a change in QD would result in an extension or contraction on the graph; whilst a change in D would result in a shift?

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