Big increases in food and energy prices mean that poorer households have experienced larger increases in their living costs than have richer households. If one were to take account of differential inflation since 2010-11 the numbers of people recorded in "absolute poverty" would have been about 300,000 higher in 2013-14 than official numbers imply and the increase in “relative poverty” at the start of the recession would have been greater. These are some of the main findings of a new report funded and published by the Joseph Rowntree Foundation (JRF) and written by researchers at the Institute for Fiscal Studies (IFS).