"Tiger Mom" Amy Chua and her husband Jed Rubenfeld have a provocative new book called: "The triple package: How three unlikely traits explain the rise and fall of cultural groups in America."
Chua made headlines for her 2011 book pushing what some called severe parenting, but in this new book, they suggest that certain groups are more successful than others because of three specific traits: superiority complex, insecurity and impulse control.
The authors say there's research behind it, but critics say it fuels racism.
Rubenfeld rebuts this and tells CNN's Chris Cuomo, "The whole book is to show what's propelling success has nothing to do with race. People who are succeeding come from all different backgrounds and skin colors."
Chua adds, "I think there's a difference between saying some groups are superior in some innate way and that they're just doing better right now. The important point is that these groups change over time."
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