国際比較で多用される, 中位等価可処分所得の50%として定義される相対貧困基準で捉えられる低所得層と, 健康で文化的な最低限度の生活水準の具体化としての生活保護基準で捉えられる低所得層の重なりを, 世帯主年齢階級別, 世帯規模別, 世帯類型別に複数時点で計測した。老齢加算廃止などの影響はあったが, それでも煩雑な計算に基づく生活保護基準未満にある低所得層の動向把握に相対貧困率が代用可能であることを示した。
This study measures the overlapping of the low-income population resulting from the application of OECD's relative poverty index, defined as a 50% equivalised median disposable income, widely used in international comparisons, with the low-income population resulting from the application of social assistance level, as an embodiment of health and cultural minimum levels of living standards, categorized in terms of household age, household size, and type at various points of time. Although effects from the abolishment of the old-age assistance addition system, and so on, were observed, results indicate that relative poverty rates can be substituted when tracking trends of low-income populations that do not fulfill social assistance levels based on complicated calculations.

小特集 : 格差・貧困政策に関する総合的研究