size of multipliers

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    DougO
    There are several reasons that a county multiplier would be larger than the multi-county region containing the multiplier. The most important is that the industry relationships (output per worker; income to output; etc) can be different from one county to the next. The region that combines the counties would be the average of all relationship and not necessarily represent the relationships of the county where the impact occured (see: http://implan.com/v4/index.php?option=com_kunena&func=view&catid=84&id=11493&Itemid=35#11498 for more discussion). This is why we have introduced MRIO to V3. The base region -ie, the region of impact is your single county. The linked region would be the remaining counties of the multi-county region. Using the MRIO, the base region impact will be slightly larger (reflecting the feedback from the linked multi-counties) and the linked region will have its own indirect and induced effects in response to the direct effect in the base region. The combined impact is guaranteed to be larger than the impact on the initial county. You can calculate the combined impact multiplier by dividing the combined Total impact by the direct impact.
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    MWalden
    Doug: Thanks. How do I implement (or construct) MRIO in version 3, which I have?
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    DougO
    First, I had the wrong link in my previous post, I have updated it. It has to be turned on through preferences. This link: http://implan.com/V4/index.php?option=com_content&view=article&id=550:550&catid=236:KB19 shows how to use, and there is a link in it showing how to access preferences and turn on MRIO.
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    DougO
    I tested the link to describe turning on MRIO and it was bad. To turn on: File > User Preferences > Analysis (tab) > and check the "Enable Multi-Regional Analysis" box.
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