Public goods in action
Wednesday, August 18, 2010
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It is quite nice to illustrate some concepts with a picture. It can be sometimes quite difficult for students to understand the idea of non-rivalry and non-excludability and quasi public goods.
The image below is of Watergate Bay in Cornwall this summer. This shows quite nicely how even though people cannot be excluded from the beach because they cannot pay, there is still rivalry because there are so many people on the beach.
If I had have taken a picture the following day it would have been very different as it was raining so very few people were on the beach and so there was non-rivalry.
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