Don't believe this one bit.

I wonder why the VGC socialists aren't here. lol

The rise of China and India surely plays a big part in this. Good to see though.

110$ a day in China for example would equal about having a monthly salary for one person of close to 6600$ in Sweden. Yeah, that is the very definition of being rich and people need to stop being so Western centric and realize that cost of living is always measured compared to each country, not according to how we live in our own countries. I'm not saying the graph is correct, but living on 11-110$ per day sounds reasonable considering the number of people living in large populated areas where cost of living is way less compared to Western Europe and the US that house a minority of the world's population.

This graph is useless, they basically just expanded the definition of middle-class to make the state of the world look better.

Coincidentally I read a newspaper article yesterday saying that if you’re middle-class with just an average income in my country you’re richer than 95% of the world. Sounds even better than this from my point of view.

In some countries you'd live like a king earning that much. Even in countries like Poland which aren't even really that poor. 

You mean State Capitalism is helping do that :)

I agree with people pointing out that they don't define "Middle Class" correctly.

If you're working a wage job, you're not middle class, you're still working class.

Working Class is anyone who is on a paycheque from an employer.
Middle Class is anyone who makes the majority of their income from personally owned sources: such as investments and your other income streams.
Upper Class is anyone who has enough personal wealth that they have no need of an income to live extravagantly.

Pretty much this. I love my status as an upper middle-class Romanian stud. Now I can sometimes afford real healthcare and maybe some takeout!