A substantial literature claims that the strong increase in inequality over the last decade in countries such as the US would lead to a collapse of society. Fading hopes in the population seem to confirm this. The paper rejects this interpretation since the decline in hopes cannot be traced back...

While the allocative efficiency of mobility is typically considered to be positive but small in the long run, the induced changes in equality may be considerable in size. In practice, however, migrants typically improve their income position in comparison to those at home, stimulate the economic...