This is the age of mobiity, relocation, change of life and country. Does relocation effectively implies better life-style, at least by economic point of view? Just an initial comparison, in order to reflect on earning: the taxation.
Nowadays we are exiting from the era of money and entering the age of Information. That is, in 5-10 years we will assist the major change in mode of dealing with information: the definitive industrialization.