An economic input-output model consists of the following flows: x 1 1 = 50, x 12 = 50, x 21
An economic input-output model consists of the following flows: x11 = 50, x12 = 50, x21 = 30, x22 = 0, ƒ1 = 10, ƒ2 = 25.
1. Determine the input-output model for this network. You need to derive two equations in terms of the throughput and final demand for each sector.
2. If the direct energy inputs to each sector are m11 = 1000 J and m12 = 500 J, calculate the energy return on investment for the product from sector 2 whose fuel value is 200 J/$.
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