I am trying to do an MRIO between two counties. I changed the user preference to IMPLAN National Trade Flow Model and applied the change.I got a message in red font on the left hand corner below saying that "Your IMPLAN model has been changed, you will need to reconstruct your model." However, the Analyze tab is all gray and I don't see how I can reconstruct my model. What is it that I am doing wrong? Thanks
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  • To reconstruct the model go to the Options menu. Select Construct and then Multipliers.
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  • Frances, I did all of the above, but I still have the area gray. I can't seem to put a check where it says Multi-Regional Analysis. Am I missing some steps? Thanks
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  • ok, this sounds like the greying is now in the MRIO screen rather than in the Tasks bar. The most common reason the software will not let you select the MRIO screen is that you have not yet selected any activities in the upper portion of the screen for analysis. You still need to create a new scenario and select activities as you would for a single region analysis, once this is done, then you can select the MRIO check box, which will activate the Add Models button.
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  • It is still grey. I am wondering is it because I am using County Plus Data.
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  • Zip codes don't have tradeflows at this time so they cannot be used for MRIO. MRIO if for county level data and higher.
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  • What's the maximum number of separate models that can be linked in MRIO Analysis? I'm trying to construct a MRIO model for a county in California linking all the remaining 57 counties, is it possible? If not, how can I model the statewide impacts by county?
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  • The software itself does not limit the number of models you can link, but each model added will exponentially increase the demand on your system (computer hardware). We support up to 10 models being linked together. More than 10 models quickly becomes very risky (likely to crash the system before completion), and 57 may easily give you trouble, but there's no harm in giving it a shot at the end of the day before heading home for the night: it could just as easily get all the way through with no problem. If it turns out that your system cannot handle it (within 12 hours of computation), let us know.
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