S2-MAS v67: YN models and household consumption results

Reviewed YN manuscript, 28 October 2026.

This release includes the complete 56-page paper and its 24-file XeLaTeX source package. Model names use the YN family throughout the manuscript and figures. The household consumption experiment reports standalone 4B/9B forecasts, fully rational and advised comparisons, income/wealth group MAE, information-timing tests and paired consumption–cash responses. It clarifies the actual 4B training variant, pre-policy initialization, price conventions and the meaning of group prediction errors.

The paper distinguishes the 500M-persona resource, completed 12M-household application and controlled state-writeback benchmarks. Author information and the contact address are updated. Figure and table numbering is consistent across the main text and supplements.

Compile main.tex twice with XeLaTeX. The GENESE/MAS engine and household-level records are not distributed in this release.