Question

How does World Bank compares the development level of different countries? Is its method appropriate

Answer 1

countries with per capita income of us $ 12736 per annum and above in 2013 are rich countries.

countries with per capita income of us $ 1045 are considered as low income countries.

no, it is not appropriate.
let me explain with an example.

let us compare 2 states - maharashtra and kerela.

in Maharashtra the employee number is more compared to kerela. so according to world Bank Maharashtra is rich. but in human development kerela is rich. they are very good on the basis health and education. but in maharashtra there is lot of poverty as all know.