I am trying to add sectors to the IMPLAN version 3 data base. I did this routinely with version 2, and shooting to do the same in version 3. I know there is something in the following procedure that I am missing. When I attempt to construct the multipliers, I get a divide by 0 error. I added both industry and commodity additions to the following tables. TypeCodesCommodityCodes TypeCodesAll TypeCodesIndustyCodes NationalAbsorptionTable NationalAbsorptionTotals NatinoalByproductsTable StudayAreaCommoditySales StudyAreaEmployment StudyAreaFinalDemand StudyAreaIndustryData StudyAreaOutput StudyAreaValueAdded StudyAreaForeignExports CommonRPCFixed CommonRPCMethods There is also a restriction on industry codes in Query IxIIndustryOuputOutlaySummary that I have modified (IndustryCode<516). The model constructs, but then when I go to set up activities and plug in an industry sales effect on one of my newly created sectors, it says Employment is Infinity and under Employee Compensation, there is a NaN. If I proceed to Analyze Scenarios and attempt to run the impact, I get an error message of Division by zero. Exploring the database in Access I see that the multipliers for the added sectors did actually compute. They can be seen in RegionalMultipliersInduced Type1. I can also view the multipliers from Explore-- Multipliers --Summary Multipliers, but the software will not compute impacts. There is a table (CommonTradeFlow ) I did not modify in the database that I am unfamilure with. If this could be the source of the problem, what data should go in this table? More generally, what am I missing?
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