2R models: Consider removing export residual from consumption vector

[WesIngwersen]

https://github.com/USEPA/useeior/blob/ae9d9694479d680084556323471eadfdb1def968/R/StateiorFunctions.R#L179-L195

The export residual is defined in Li et al 2022 as:

The exceptions are the industries in which all consumption was assumed to be local. In this case, since no interregional trade is assumed, the distribution of a discrepancy between supply and demand affecting other regions would necessarily result in a model with negative interregional imports, which is untenable from the economic point of view. In this case, the difference between supply and demand is included as a new component of final demand that is called the “export residual”. For commodities that have SoI2SoI ICF ratio equal to 1, their “export residual” equals their “interregional exports”.

This is a balancing term because it these are commodities not consumed locally and it creates an imbalance if they are assigned to RoUS consumption (and these are interregional and not international exports).

[WesIngwersen]

My recommendation would be to remove it from the consumption vector, but to keep it in the production vector

[jvendries]

@WesIngwersen I removed the export residual from the consumption vector, and created model objects and a script to check that this change did not have any major impacts. Nothing changes besides objects dependent on the final consumption vector itself (CbS and B_h), and the household final demand resulting from models with and without the export residual are equivalent, suggesting this change is OK. This should be fine to pull into develop.

[WesIngwersen]

@jvendries please create PR to pull into develop, thanks

[jvendries]

@jvendries please create PR to pull into develop, thanks

@WesIngwersen @bl-young I created a pull request for this issue. I also moved and tested the rmd script and model objects related to this issue to useeio_team to avoid pulling those into develop.