# `barnstable_analysis_data.xlsx`

Monthly market and risk-free returns from CRSP/WRDS for the Barnstable and Long-Run Risk case study.

| | |
|---|---|
| **Source** | **CRSP** — Center for Research in Security Prices (via WRDS) |
| **Years** | 1926-2025 |
| **Frequency** | M |
| **Vintage** | Rolling — refreshed by re-running the builder |
| **Rebuild** | `build_data/Build WRDS - Barnstable.ipynb` |
| **Provenance** | Existing nonmissing observations preserved; 2025 appended from canonical CRSP CIZ/WRDS snapshot. Twelve historical TB1M gaps repaired from WRDS by calendar-month alignment, verified 2026-10-13. |

## Used in this book

- [Barnstable and Long-Run Risk](../case_studies/Barnstable%20and%20Long-Run%20Risk.ipynb) — Dynamics (Case Studies)
- [Solution - Barnstable and Long-Run Risk](../case_studies/Barnstable%20and%20Long-Run%20Risk_OUTPUT.ipynb) — Dynamics (Case Studies)
- [TA Review - Dynamics](../ta_reviews/TA%20Review%20-%20Dynamics.ipynb) — Dynamics (TA Reviews)

## Files in this book

- `barnstable_analysis_data.xlsx`