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Leontief Input-Output Model. Becky Siegel Carson Finkle April 23 2008. What is the model about?. Used to describe the relationship of industries within a sector International National Regional Within a business. Assumptions of the Model. Fixed proportions of inputs
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Leontief Input-Output Model Becky Siegel Carson Finkle April 23 2008
What is the model about? Used to describe the relationship of industries within a sector • International • National • Regional • Within a business
Assumptions of the Model • Fixed proportions of inputs • Demand is met fully without a surplus or shortage • Internally for closed model • Internally + external demand for open model
The Equation (closed) • Let C be a consumption matrix such that and X be the production vector such that
Closed Model Energy Manufact-uring Services
The Equation (open) • Let C be a consumption matrix such that and X be the production vector such that
Open Model External Demand Labor Transportation Food
Wrap Up • Contributions • Limitations • Conclusions