Data year selection

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    IMPLAN Support
    Hi Leslie, This is not a remedial question at all, and there is no need for apologies. You certainly can use the 2010 data and just deflate the values, but as was brought up to you, the IMPLAN data years are fixed representations of the economy for the calendar year of the data set. Since the economy in each of these three years will be very different and the industry representation and mix may be different as well. Depending on the nature of your analysis, it may well be worth building your analyses in all 3 model years so that you are more accurately representing what was occurring in the economy of the time you are representing with your analysis. While this will have a higher degree of accuracy, overall, the degree to which this is so should be measured against the difficulty of comparing the analyses over these three data sets, presuming that this is what you are going to try to do. Comparisons between 2008 and 2010 are straight-forward and simple, but the 2004 year has a different sectoring scheme and you will thus need to convert between the sectoring schemes to compare analyses. You can do the [url=http://implan.com/V4/index.php?option=com_docman&task=doc_download&gid=151&Itemid=60]conversion manually[/url] with this access database. Probably the best way to determine whether or not you want to use the deflators in the 2010 data or whether you want to build and run events in each year's model, is to build the three models and 'compare' their study area data and multipliers to determine whether or not there seems to be a significant difference in the 2004, 2008, and 2010 economies and hence a need to best represent this in each year's data. Because of the change of Sectoring scheme/Benchmark you will likely see significant differences in the 2004 database. Let us know if you have any further questions.
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