“…The findings of more recent studies generally support these earlier conclusions (for example D' Souza and Joliffe, 2010;de Brauw, 2011;Hella et al, 2011;Hossain and Green, 2011;Kumar and Quisumbing, 2011;Lu and Yu, 2011;Perez et al, 2011;Santoalla, 2011;Smale et al, 2011;Sophal, 2011;Ticci, 2011;Helen Keller International, 2011;Heltberg et al, 2012). An important additional point is that the impacts of food price rises are critically affected by their timing relative to seasonality (as it affects prices, wages, livelihood opportunities, food stocks, etc) and relative to other changes in the economy (for example changes in other commodity prices, in livelihood opportunities other sectors) and by spatial variables (for example Hella et al, 2011;Perez et al, 2011).…”