The Wikipedia article is also a good port of call - http://en.wikipedia.org/wiki/Derivative_%28finance%29 http://en.wikipedia.org/wiki/Derivative_%28finance%29

The Wikipedia article is also a good port of call - http://en.wikipedia.org/wiki/Derivative_%28finance%29 http://en.wikipedia.org/wiki/Derivative_%28finance%29 Derivatives are very useful instruments for some. The example of a wheat farmer and a miller is useful for gaining understanding about what a derivative is and how they can be used.