# Public data attribution / 公开数据归属

The World Bank: World Development Indicators (WDI, source 2).

- NY.GDP.MKTP.KD.ZG — GDP growth (annual %). Providers: country official statistics / national statistical organizations and central banks; OECD national accounts data; World Bank staff estimates.
  https://databank.worldbank.org/metadataglossary/world-development-indicators/series/NY.GDP.MKTP.KD.ZG
- SL.UEM.TOTL.ZS — Unemployment, total (% of total labor force), modeled ILO estimate. Provider: International Labour Organization, ILO Modelled Estimates database (ILOEST), ILOSTAT. API metadata reports provider access date January 17, 2026.
  https://databank.worldbank.org/metadataglossary/world-development-indicators/series/SL.UEM.TOTL.ZS

Both indicator glossary pages state CC BY 4.0. License:
https://creativecommons.org/licenses/by/4.0/
World Bank dataset terms (including additional dispute-resolution terms):
https://data.worldbank.org/summary-terms-of-use
https://www.worldbank.org/ext/en/legal/terms-conditions#datasets

Keep this attribution and the linked terms with redistributed data. This exercise is not endorsed by the World Bank or ILO. No third-party logo or software is distributed.

Changes: raw/ contains the downloaded API JSON responses; data/indicators.csv selects six countries and years 1991–2024 and reshapes two series to country/year rows. Outputs compute annual unemployment differences, OLS estimates and figures. No missing values were filled by this exercise. The ILO source series itself includes modeled/imputed values; these must not be treated as uniformly observed national statistics or used for country rankings.

Provenance, API URLs, download timestamp and response hashes are recorded in provenance.json. World Bank data can change; a new download need not match this snapshot.

数据归属、条款与来源说明随包保留。原始 API 响应与整理后的 CSV 分开保存；年度差分、回归和图由本案例生成。数据许可仅适用于上述第三方数据，不改变 Marx Max 闭源商业代码的身份。