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Teaching Economics

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Scarcity and the Basic Economic Problem

Ben Christopher

21st May 2012

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When introducing pupils to this topic and looking for examples of free and economic goods, water often comes up as an example of a free good. Well, below (and found here) is an excellent image which illustrates the true scarcity of fresh water as the sphere represents all available water in comparision to the size of the earth.

Water ball

Also, here´s a nice defintion of free goods from economicshelp.org

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Ben Christopher

Now teaching in Dubai.

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