Data
Every dataset used in the data labs — source, licence, retrieval date, and download
Data labs load these dated snapshots by default so results are reproducible; each lab also shows how to refresh the series live from its source. Snapshots are never overwritten — a refresh adds a new dated file.
| Dataset | Source | Retrieved | Licence | Chapters | Download |
|---|---|---|---|---|---|
| US real consumption per capita, PCE price index and real GDP per capita (quarterly) | FRED, Federal Reserve Bank of St. Louis (original sources on each series page) | 2026-10-15 | A794RX0Q048SBEA: Public domain (per FRED series notes); PCECTPI: Public domain (per FRED series notes); A939RX0Q048SBEA: Public domain (per FRED series notes) | Chapter 3 | CSV |
| US real GDP (quarterly) | FRED, Federal Reserve Bank of St. Louis (original sources on each series page) | 2026-10-15 | GDPC1: Public domain (per FRED series notes) | Chapter 3 | CSV |
| US 3-month Treasury bill rate (monthly) | FRED, Federal Reserve Bank of St. Louis (original sources on each series page) | 2026-10-15 | TB3MS: Public domain (per FRED series notes) | Chapter 3 | CSV |