I modeled the impacts of a construction project using two models. One model is the 2010 San Mateo County (CA) model and the other model is a sub-county model which includes 3 contiguous ZIP codes in San Mateo County (94061, 94063, 94065). The results are consistent with expectations, whereby indirect and induced impacts in the County model are larger than in the sub-county model. However, results for Manufacturing (sum of all manufacturing industry sectors) did not follow this same logic. Sub-county model generated higher impacts (employment, output, etc) than the larger County model. What could be causing this, and what's your recommendation in terms of adjusting the results?
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