Commuting patterns at the zip code level data

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    IMPLAN Support
    Hello Zafer, It's unclear if you are referring to the commuting (transfer) of goods between regions or the commuting of employees (in-commuting and out-commuting). A response to both is provided below. IMPLAN uses the Trade Flow model to determine regional PRCs at the state and county level. This provides both regional RPC estimations and the ability to perform Multi-Regional Input Output (MRIO) analysis, which allows users to link models together and capture inter-regional impacts generated by the core region. Trade Flow data are not available at the Zip Code level; instead, the Econometric RPC method is used to generate Zip Code region RPCs. MRIO is not available at the Zip Code level. The link below contains further information. http://support.implan.com/index.php?option=com_content&view=article&id=273 Zip Codes do account for employee commuting; if the region has a net in-commuting rate, then the portion of any impact that is directed to Employee Compensation will be reduced to reflect employees taking their money home (out of the study region). You can determine if your study region region has a net in-commuting rate by going to Social Accounts > IxC Social Account Matrix and taking note of Employee Compensation column payments to Domestic Trade. For regions that are net out-commuting, this value will be 0. The link below contains further information. http://support.implan.com/index.php?option=com_content&view=article&id=254:254&catid=230:230 Are all of your Zip Codes being combined into one aggregated region? In that case, your rate will reflect the net in-commuting for the region as a whole. Finally, you certainly can still conduct your analysis at the Zip Code level using your information, as the system still asks for the same Inputs as does a County impact (Industry Sales, Employment, Employee Compensation and Proprietor Income). Regards, IMPLAN Staff

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