http://www.irp.wisc.edu/faqs.htm IRP is a center for interdisciplinary research into the causes and consequences of poverty and social inequality in the United States. It is based at the University of Wisconsin-Madison. As one of three Area Poverty Research Centers sponsored by the U.S. Department of Health and Human Services, it has a particular interest in poverty and family welfare in the Midwest. [This text taken from the website] --