I am comparing multipliers in a geography. Is there a way to calculate the aggregated multiplier for say Ag., Mining, Mfg., etc? Second, if I insert a new supplier industry in to a geography, is there a way to calculate the new multiplier for the industry sector which uses those inputs or a way to estimate the affect the new industry has on the geographies multipliers. My concerns is that if I add a key local supplier industry, that I will be understating the multiplier for related industries. Finally the multiplier (2010 Model) for insurance agencies and brokers is quite high in the geography I am studying. Is it the employment and salaries of staff that create such a high multiplier 1.91 ~ 2.07? This seems more like a manufacturing multiplier. Thoughts?
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