This is an answer in general and not about that sector, as I/we have no specific knowledge about what is done in each sector.
Input output models are supply chain models, thus producing any intermediate or final product incorporates all of the activity needed up to the point of manufacture of the selected product. If you are making asphalt products, then upstream production of asphalt would be included.
Using a more common example, producing output in the "automobile manufacturing" sector includes all of the upstream production of tires, windshields, engines, etc.
HOWEVER, you also asked about construction. I assume you mean construction of the factories needed to make asphalt, asphalt mixtures, etc. In general, IO models DO NOT include capital flows such as this (and thus do not include the GHG Or other effects of construction). You can create IO models with embedded capital flows (and we have done that internally) but none are currently available on the website.
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