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The Research SUPPLEMENTAL POVERTY MEASURE: 2011

Report Number P60-244
Kathleen Short
Component ID: #ti749331633

Introduction

Last year the U.S. Census Bureau, with support from the Bureau of Labor Statistics (BLS), released the first report describing research on the Supplemental Poverty Measure (SPM).1 The SPM extends the information provided by the official poverty measure by including many of the government programs designed to assist low-income families and individuals that are not included in the current official poverty measure. The current official poverty measure was developed in the early 1960s, and only a few minor changes have been implemented since it was first adopted in 1969 (Orshansky, 1963, 1965a, 1965b; Fisher, 1992). The official measure consists of a set of thresholds for families of different sizes and compositions that are compared to before-tax cash income to determine a family’s poverty status. At the time they were developed, the official poverty thresholds represented the cost of a minimum diet multiplied by three (to allow for expenditures on other goods and services).

Concerns about the adequacy of the official measure have increased during the past decades (Ruggles, 1990), culminating in a Congressional appropriation in 1990 for an independent scientific study of the concepts, measurement methods, and information needed for a poverty measure. In response, the National Academy of Sciences (NAS) established the Panel on Poverty and Family Assistance, which released its report, titled Measuring Poverty: A New Approach, in the spring of 1995 (Citro and Michael, 1995). Based on its assessment of the weaknesses of the current poverty measure, this NAS panel of experts recommended having a measure that better reflects contemporary social and economic realities and government policy. In their report, the NAS panel identified several major weaknesses of the current poverty measure.

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1 Short (2011), <www.census.gov/library/working-papers/2011/demo/SEHSD-WP2011-20.html.> Also see, Short (2012) <www.census.gov/library/working-papers/2012/demo/short-02.html>, accessed September 2012.

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