Wilen J E, 1973, "A model of economic system - ecosystem interaction" Environment and Planning 5(3) 409 – 420
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A model of economic system - ecosystem interaction
J E Wilen
Received 15 April 1973
Abstract. The basic Ayres - Kneese materials-balance model is extended by appending a model of a set of ecosystems together with the corresponding linkages. Both submodels employ linear transformation depictions of the input - output processes, a measurement of physical production as an index of comparison, and a joint reliance on a stock of material common to production in both systems. A set of index numbers is developed which indicates the relative impact of the production of a particular commodity on particular ecosystems.
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