Expanding on the – theory, journalist ken auletta introduced the concept of –, which posited that poor people were different from the mainstream due to their poverty, and were also increasingly socially –.

The answer is:

Expanding on the culture of poverty theory, journalist Ken Auletta introduced the concept of the underclass, which posited that poor people were different from the mainstream due to their poverty, and were also increasingly socially deviant.

In the 1980s, journalist Ken Auletta  conceived the notion of underclass, which argues that the poor not only are different from conventional society in their inability to demand of what it has to offer. Besides, he claims the underclass is progressively becoming an outsider and is even dangerous for the rest of society.