If the price of a product changes it will result in a new quantity supplied and a movement along the existing supply curve.

However, if another ‘determinant of supply’ changes it will result in a shift of the supply curve to a new position, to the right (an increase) or to the left (decrease).

In the following cases, draw an original supply curve (S) and a new supply curve to the left or right, and label it S_1.

1. _{The supply of Economics textbooks following a fall in the cost of printing.}

2. _{Ice cream, following a rise in the cost of milk.}

3. _{DVD Players following the introduction of new technology by DVD manufacturers.}

4. _{Underground travel following a strike by Tube drivers.}

5. _{The world supply of oil following the discovery and refining of large oil reserves in Russia.}

6. _{The supply of wine from France following the imposition of a tax on imported wine.}

7. _{The supply of bread in the UK following the granting of a subsidy by the government to bread producers.}