Provenance
Sources
Our macro data comes from the World Bank Indicators API v2, licensed CC BY 4.0. Below are the exact indicators in use today.
World Bank indicators
GDP per capita, PPP (current international $) NY.GDP.PCAP.PP.CD
GDP per capita (current US$) NY.GDP.PCAP.CD
GNI per capita, PPP (current international $) NY.GNP.PCAP.PP.CD
PPP conversion factor, GDP (LCU per international $) PA.NUS.PPP
Inflation, consumer prices (annual %) FP.CPI.TOTL.ZG
Source-tier policy
Tier 1National & official statistics agencies
Highest trust — used where subnational detail is added.
Tier 2International organisations (World Bank, OECD, Eurostat, ILO, UN)
The backbone of our country-level data today.
Tier 3Reputable secondary sources
Used sparingly, always labelled. Crowdsourced aggregators are excluded.
Maps & additional data
Country map shapes echarts-countries-js (ODbL)
Quality-of-life metrics World Bank · UNODC · WHO/UNICEF · ITU
See the methodology for how these feed the index.