Definition: Poverty (at-risk-of) gap ratio
Measure of intensity of income poverty risk, defined as the difference between the median income of those at-risk-of poverty and the at-risk-of poverty threshold, as a percentage of the income at-risk-of poverty threshold.
Eurostat, "European social statistics. Income, powerty abd social exclusion: 2nd report. data 1994-1997", (2002 Edition), Office for Official Publications of the European Communities, 2002, Luxembourg