This record has been written because I aim to gratefully and humbly show what I have learned on world economy with everyone by publishing them on free article website. Hopefully, they'll understand about more financially developed countries (MEDCs), recently industrialized countries (NICs) and less financially developed countries (LEDCs) and why must the globe be split into such categories. Please forgive me if what I've written was incorrect when i am no expert on this topic. If I think I could change people's heads, I am like flogging a deceased horse because different people have different viewpoints. Humans communicate by natural means and many financial models have been shown so that they can know very well what drives our communication. Effective communication is the main element to building healthy relationships with others.