A change in supply is represented as a shift of the supply curve, while a change in the quantity supplied is shown as a movement along the curve.

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This is because a change in supply refers to a shift of the entire curve, which can occur due to various factors such as changes in technology, input prices, or government policies. On the other hand, a change in the quantity supplied refers to a movement along the existing supply curve, which is caused by changes in the price of the product.

A Change in Supply Is Represented as a Shift of the Supply