Combining zip code and county data files


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    Hi Doug, You certainly can incorporate zip code files with county data files in a single model. The one thing that this will change is that the model will need to be built with the Econometric RPC methodology. This is because the zip code files at this time do not have the trade data necessary to build using the preferred "Trade Flow Method". Additionally this means that models that include zip code regions cannot be linked for MRIO analysis. So as long as you are not wanting to do any MRIO with your model, you shouldn't have any problems mixing these data files. Thanks, Frances (The Econometric RPC method is the same method used in Version 2.0.)
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