Universal Basic Income is going to happen. Sooner or later. The real question is whether it'll be truly universal and without strings or whether it's weaponized by authority into a control mechanism. If the latter is what happens, we can kiss democracy goodbye. Forever.
Europe and the United States are the two largest economic blocs. I found this interesting map showing how the European countries would map onto the 50 United States, by equivalent GDP. Plus a few notes on China's wealth as a nation versus a Chinese individual.