I found this immensely depressing:
The number of black immigrants living in the US has increased 13-fold from 1970 to 2010, increasing their share of the black population from 1% to 10%. Black immigrants’ labor market outcomes surpass those of native blacks. This paper determines in how far the relative success of black immigrants is passed on to the second generation. While blacks of the second generation have equal or higher education and earnings levels than the first generation, the return on their unobservable characteristics is converging to that of native blacks. Race premia are put into a broader context by comparing them to Hispanics, Asians, and whites. Blacks are the only group that experiences a decrease in residual earnings when moving from the first to the second generation. Black immigrants do not only converge to native blacks across generations but also within a generation. For Asians and Hispanics, residual earnings decrease monotonically with age of immigration. For blacks, the residual earnings-age of immigration profile is upward sloping for those immigrating before the age of 15. Convergence across generations is mostly driven by low-educated second generation blacks that drop out the labor force in greater numbers than low-educated first generation immigrants do. Similarly, convergence within a generation is mostly driven by low-educated blacks who immigrate when they are young dropping out of the labor force in greater numbers than those who immigrate when they are older. A social interactions model with an assimilation parameter that varies by age of immigration helps explain this phenomenon. When making their labor force participation decision, immigrant men of all races, but not women, generally place more weight on the characteristics of natives the earlier they immigrate.