In conducting a study for the impact of the mining industry on three counties, is it best to calculate the impact of the industry on each county and add them or is it best to aggregate them into a region and look at the impact for the region? Does the aggregation tool in your model account for the fact that there are differing percentages of workers in each county or does that matter? Am I correct in understanding that mining supplies (equipment, hard hats, tractors, repair work, etc.) would be included in the indirect impact? It is often difficult to find jobs data for support services or transportation. If that that data is available should it be bundled along with the mining operations or would you compute the impact of mining operations and add the impact of the support activities and transportation? Am I correct in understanding that mining products sold (electricity, wholesalers, retailers) would not be included in the indirect or induced impact? If I wanted to include them they could be added to the original impact. Is that a correct assumption? In the event section of the model, the local percentage of purchases can be adjusted, the default is 100%. It seems like such an adjustment is not necessary because it would be built into the multiplier. What am I missing? Thank you.
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