" There will be a poverty trap whenever the scope for growing income or wealth at a very fast rate is limited for those who have too little to invest but expands dramatically for those who can invest a bit more. On the other hand, if the potential for fast growth is high among the poor, and then tapers off as one gets richer, there is no poverty trap. "

― Abhijit V. Banerjee , Poor Economics: A Radical Rethinking of the Way to Fight Global Poverty