This report presents data on poverty based on information collected in the Survey of Income and Program Participation (SIPP). The report describes patterns of poverty using measures with different time horizons and provides a dynamic view of the duration of poverty spells and the frequency of transitions into and out of poverty. It further examines how poverty dynamics vary across demographic groups. The report focuses on data collected in the 2008 Panel of the SIPP over the period of January 2009 to December 2011 and, where appropriate, makes comparisons to data collected for January 2005 to December 2007 in the 2004 SIPP Panel.
This report discusses poverty rate estimates for different time periods, measures the length of time people remain poor, and follows the movement of people into and out of poverty. The poverty measures discussed include monthly, annual, episodic, and chronic poverty rates. To capture changes in poverty status over time, the report examines poverty entry rates, poverty exit rates, and the duration of poverty spells. (author abstract)