The flows in an economic input-output model are as follows: x 11 = 50, x 12 =

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The flows in an economic input-output model are as follows: 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 from each sector. 

2. For the given flows, sector 1 extracts crude oil and emits 5 m3 of SO2. Sector 2 transports crude oil and emits 8 m3 of SO2. Determine the life cycle emission of SO for delivering $10,000 worth of crude oil.

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