The document discusses using input-output analysis and IMPLAN software to conduct economic impact analyses. It provides an overview of input-output tables and how they can be used to estimate multipliers showing the total economic impact of changes in final demand or industry output. Multipliers capture the direct, indirect, and induced effects of these changes on jobs, income, value added, and total economic activity. The document gives examples of how input-output models and multipliers can help analyze impacts of industries like waste hauling and landfills.