“How can $1 of spending support more than $1 in the local economy?”
We get questions like this about economic impact analyses all the time. The answer is very straightforward. The results of an input-output (I-O) analysis are broken down into direct, indirect, and induced effects. The combination of these overarching economic effects often total greater than the initial economic input. Each level of effects captures a different portion of the complete economic portrait. In order to understand the totality of an impact, you must conceptualize how each value is defined and what they represent.