Contribution Analysis Interpretation Questions

Hi Rob. Unfortunately the results screen are not comparable. The results shown in the single--Industry Contribution analysis are highlighting the fact that the results in Sector 99 matches the Study Area Data. The results demonstrated in the multi-Industry show the total effects. We apologize that this is confusing and we work to make these results sets comparable in the future. Thank you for bringing this to our attention. If you are looking at what an Industry currently supports in your economy based on it's entire production (i.e. the entire Sector rather than an individual firm) then contribution analysis is appropriate for you. Here are a couple of quick points on contribution analysis: Contribution Analysis assumes that the entire value of production needs to be constrained. This is ideal for: >Examining the Contribution of an entire Sector or Industry, since you cannot have more local production than the current value of production. Constraining negative impacts, so that losses from the target Industry do not exceed total regional production. Thanks!

Okay thank you. One more quick question. Going through the multi-industry contribution analysis link http://implan.com/index.php?option=com_content&view=article&id=467 under "Modify Trade Flows", it says to go through each agricultural industry and change the RSC to 0. But under trade flows, it only shows commodities. Do I have to go through each industry, see what commodities are used, and then go back to trade flows and zero them out? I'm not sure what I'm missing here. Thanks!

Hi Rob, Under the Customize Category in IMPLAN > Trade Flows, it does list out the Commodities and not Sectors. However, for example: The commodity of Oilseeds (3001) is Industry (1) for Oilseeds but the commodity will always list a 3 at the beginning. Hopefully this was helpful.