[nicholasdrake]

it is not just a function of companies moving after they are successful. just look at silicon valley where most of the best start-ups are founded. silicon valley is a classic global zero-sum game because the network effects are so strong... look at attempts in chile, dublin, london etc. to create startup hubs, they are struggle with the fact that silicon valley is taking all the best companies first...

re 2) that's a good point i didn't thikn of that and many countries may seek to nationalize big corporations to keep them based in the domestic country etc..

clearly i'm not arguing that there will be no companies in some countries and all the companies in other countries, but maybe just a more extreme version of what you already see now where most of the big technology companies are based in just two countries: usa and china... maybe you need only half of all the companies in the world to be global enough to serve the world from just one location/country to have extreme international inequality/differences in % unemployed etc.