What Are The World Bank "Tiers"?

[Webster]

Saw the post below elsewhere on the board....

Are you earning daily from survey websites?

As I reside in a tier-3 country, my pay schedule is limited to twice or thrice a month. I wish to earn more by participating in online surveys. Perhaps individuals from top-tier countries have the opportunity to earn a certain amount of money on a daily basis. How about you?

discussionbucks.com

....and decided to look up "tier-3 country" on the Googles....

World Bank Group country classifications by income level for FY24 (July 1, 2023- June 30, 2024)

The World Bank Group assigns the world’s economies to four income groups – low, lower-middle, upper-middle, and high. The classifications are updated each year on July 1, based on the GNI per capita of the previous calendar year.

blogs.worldbank.org

The World Bank Group assigns the world’s economies[1] to four income groups – low, lower-middle, upper-middle, and high. The classifications are updated each year on July 1, based on the GNI (Gross National Income) per capita of the previous calendar year.

Now we know.