https://blogs.worldbank.org/opendata/new-world-bank-country-classifications-income-level-2020-2021
Updated country income classifications are available here. The World Bank assigns the world’s economies to four income groups—low, lower-middle, upper-middle, and high-income countries. The classifications are updated each year on July 1 and are based on GNI per capita in current USD (using the Atlas method exchange rates) of the previous ...
https://www.worldbank.org/en/country/mic/overview
The world’s Middle Income Countries (MICs) are a diverse group by size, population, and income level. They are defined as lower middle-income economies - those with a GNI per capita between $1,036 and $4,045; and upper middle-income economies - those with a GNI per capita between $4,046 and $12,535 (2021).
https://www.worldbank.org/en/country/mic
Middle Income Countries are a diverse group by size, population and income level, and are home to 75% of the world’s population and 62% of the world’s poor. MICs also represent about one-third of global GDP and are major engines of global growth.
https://www.worldbank.org/en/search?q=low+and+middle+income+countries
The top 20 countries with the fastest growing wealth per capita were dominated by developing countries—including two of the biggest—China and India, which were both classified by the World Bank as low income countries in 1995 and are now ranked as middle-income.
https://blogs.worldbank.org/opendata/new-country-classifications-income-level-2019-2020
Low income. 1,790. 910. Argentina. Upper-middle income. High income. 12,370. 13,040. The country and lending groups page provides a complete list of economies classified by income, region, and lending status and links to previous years’ classifications.
https://www.worldbank.org/content/dam/Worldbank/document/HDN/Health/Payer%20Strategies%208_2013.pdf
Low-Income Countries Middle-Income Countries Financing (IDA, subsidized) Financing (market rates) Research, analytics, policy advice Overall goal: reduce poverty, increase equity . Health Systems focus Slide 3 Human Resources Financing and payment systems Governance (laws, regulations, standards)
https://blogs.worldbank.org/africacan/africas-mics
If current trends continue, most African countries will have reached middle-income status by 2025. Only about 13 countries will remain low-income, most of them fragile states. Africa’s more advanced economies can be grouped into four, not mutually exclusive, categories, of between six to eight countries: