Edward O'Boyle provides an interesting and useful discussion of the concept of arguing that or unmet physical need, has two dimensions: an individual/physical and a dimension. The individual of should be measured by an absolute standard or living The should be measured by a or income distribution standard. O'Boyle speaks favorably of a measurement system used Ireland which combines both dimensions. The minimal living standard is measured by deprivation indicators such as whether the household lacks a telephone, central heating, a refrigerator, etc. The or income distribution is determined by whether the household has income below a certain percentage of the national average. A household is deemed to be in poverty if it is judged to be deprived under both dimensions. I would strongly concur with O'Boyle commending this system's use of physical deprivation indicators to measure whether a household meets a minimal living standard. My own research has pursued this approach for several years. While there will be more than ample room to argue about exactly what deprivations should be included and which deprivations should constitute the threshold of poverty, such discussions are likely to be highly informative regarding the actual living conditions of the a way that abstract discussions about income seldom are. (For reasons I shall discuss below, I am less sanguine about melding the measure of material deprivations with income distribution or relative standards.) O'Boyle then proposes his own two-dimension definition of for use the US This system is based on reported income rather than material deprivation. Under the proposed complex system, degree of is determined based on whether household income is: a) below the official income thresholds; and b) is the bottom decile or two deciles of the national income distribution. I would put forward the following objections to this specific approach. 1 The system uses income data from the Current Population Survey (CPS); I have argued the CPS is corrupt and that any measurement system using it is inherently misleading. 2 The official income thresholds are a criterion for measuring whether a family fails to meet a living standard; as my own paper shows, many families with reported incomes below these thresholds experience no actual material deprivation. 3 The unusual use of decile data to measure relative raises problems. By definition, exactly 20 percent of households always must have incomes the bottom two income deciles. This is true irrespective of the distribution of income the society. To deem any household as poor (or marginally poor) which has an income placing it the bottom two deciles of income distribution makes ineradicable even under the most dramatic schemes of income redistribution. This problem is somewhat mitigated, if we understand that O'Boyle deliberately seeks to measure the social dimension of deprivation simply by a family's rank position within the national hierarchy of household incomes. However, while a family's rank within the income hierarchy may prove an interesting concept, it still remains unclear why this should be termed poverty. 4 The use of income decile data to measure relative or deprivation is also problematic because income decile data is not adjusted for family size. Thus the use of raw decile data as a component of criteria, ceteris paribus, tends to inflate the number of small one or two person households which are considered or marginally poor. My own research suggests that these smaller households are not likely to be good candidates to be deemed either absolutely or relatively deprived. Within the context of O'Boyle's overall design, it probably might be better to determine if a family is ranked the bottom decile or quintile of incomes of families of a similar size. …
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