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Non pure public good

These are typically goods that have the feel of public goods but do not completely satisfy the definition of a public good. They are largely non-rival (apart from during peak/times and periods) and although it is possible to exclude third parties from the benefits the costs associated with this mean that this is rarely enforced. e.g. roads and NHS.

Below is a digram to illustrate that for a public good to be classed as non-pure there must be one characteristic of a public good that does not hold. Below are examples of two goods toll roads and a popular beach. A toll road is non-rival as there is plenty of room for cars on these types of roads consumptin of this type of good has little or no effect on the amount left for others to consume. But of course this good is excludable because unless a person wishes to pay the toll to use the road they cannot enojy the good i.e. this is not a good that people can free-ride off. On the other hand a popular beach is non-excludable as it is free to use a beach, but is a rivalled good as the more people that use the beach the less space there is for the next consumer on that beach.

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