Expert:

Dr. Roberta Iversen

Associate Professor, School of Social Policy and Practice, University of Pennsylvania

Credentials

* Researched poverty in the U.S., finding nearly 25% of American workers with two full-time working parents in the household do not earn enough to support their families

* Author of "Jobs Aren't Enough: Toward a New Economic Mobility for Low-Income Families"

* Nationally recognized authority on income disparities, insufficient wages and low-income families