U.S. Methods Paper for v0.2 model

[WesIngwersen]

A working paper describing the methods used to create the U.S. model as of the v0.2 model coming out of bedrock

https://github.com/cornerstone-data/papers/blob/v0.2model/us-methods/us-methods.md

Please provide your questions, comments or other feedback here.

[smcnichols94]

Thanks for sharing this information! Do these model changes constitute a methodology change that would require re-baselining of previous years if we were using the US EPA supply chain factors based on the EPA US EEIO model? Building off that question, what will the earliest year of data that will be available with this new model?

[smcnichols94]

Additionally, I see in the documentation this statement "merges USEEIO and CEDA-US to build the Cornerstone U.S. model, a waypoint toward the Cornerstone global Multi-Regional EEIO model targeted for release in October 2026". What is the difference between the "Cornerstone global Multi-Regional EEIO model targeted for release in October 2026" and the current open CEDA global factors that are available for download here: https://openceda.org/solutions/ceda#516fbe13-2f86-43f4-b2d6-8c6721856a22? Is it that this will now include a new US model that merges USEEIO and CEDA-US or are there other changes?