Figure 1 from Global support for new vaccine implementation in middle-income countries. | Semantic Scholar
List of countries by GNI (nominal) per capita - Wikipedia
List of World Bank low-income to lower-middle- income countries-July 2016 | Download Scientific Diagram
LIS Cross-National Data Center in Luxembourg
What do the World Bank's country classifications mean? | World Economic Forum
Introducing the MIFFs - NotEnoughGood.com
World Bank classification: India is still a lower-middle-income nation, while Sri Lanka grows richer
Chart: Very Few Countries Have Been Able to Escape the 'Middle Income Trap'
2 (iii): List of Upper Middle Income Countries | Download Table
Poverty stalks Africa's varied middle classes | Good Governance Africa
List of middle-income countries in the sample | Download Scientific Diagram
New World Bank country classifications by income level: 2020-2021
List of countries included in the sample by income classification. | Download Table
/dotdash_Fianl_Less_Developed_Countries_LDC_Dec_2020-01-8488fec8972043569a50a34958eb50bf.jpg "Least-Developed Countries (LDC) Definition")
Least-Developed Countries (LDC) Definition
Aiming for the Top: Can China Escape the Middle Income Trap? - CKGSB
Covid World Vaccination Tracker - The New York Times
2 (iii): List of Upper Middle Income Countries | Download Table
PLOS ONE: Magnitude of Treatment Abandonment in Childhood Cancer
World Bank: World Bank to change classification of countries; India will now be called 'lower-middle income' - The Economic Times
Geographical distribution of fertility rates in 70 low-income, lower-middle- income, and upper-middle-income countries, 2010–16: a subnational analysis of cross-sectional surveys - The Lancet Global Health
List of all low-income countries | Download Table
New World Bank country classifications by income level: 2021-2022
