This article develops the idea of using the closed economy concept to discuss our planet's economy. The article illustrates how observations at the level of planet Earth can be used while teaching relationships that are studied in a closed economy setting. It provides an overview of internet resources with world data and some practical examples that can readily be used in teaching.

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International Review of Economics Education

van Bergeijk, P.A.G. (2014). Earth-economics: A closed economy approach with real world data. International Review of Economics Education, 15, 60–70. doi:10.1016/j.iree.2013.08.002