Add journal-quality Data & Methods, Analysis, and Results write-up cells

Three markdown cells written in PAR/Policy Studies Journal style:
- Data and Methods: sources, sample, variables, model equations
- Analysis: analytical strategy and identification rationale
- Results: full findings with formatted tables for all four hypotheses

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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2026-02-25 12:45:31 -08:00
parent 9d18c02105
commit 365bbe570a

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