This defines the stability dimension of food security that is the focus of this report. Policies in place need to be capable of managing of potential risky scenarios that threaten food security due to various alternative causes, whilst also being compatible with a policy environment that stimulates income growth and that reduces food insecurity across all scenarios including those where there is no particular shock. Therefore, several indicators have been developed to measure different aspects of food insecurity (OECD, 2013 a), most of which are based on estimates of the share of the population that is under a given threshold of a relevant variable, such as calorie consumption, food expenditure or anthropometric measures indicating child malnutrition. According to Sibrian (2009), the most appropriate variables to measure food insecurity include dietary energy consumption (i.e. food consumption measured in energy units, e.g. kcal) to measure food deprivation, expenditure or income available to meet dietary energy needs to estimate food poverty, and weight- or height-for-age to quantify child under-nutrition.