following sen s proposal anthony shorrocks modified the index adjusting the normalization condition in order to satisfy the transfer axiom and to provide continuity shorrocks these authors proposed an additively decomposable index based on sen s index but in the foster greer and thorbecke fgt indices poverty is aggregated using household shortfalls as weights relative deprivation instead of a rank order foster greer and thorbecke however it is important to note that the most common poverty index the poverty headcount index fails to satisfy the monotonicity and transfer axioms while the poverty gap index does not satisfy the transfer axiom sen these axioms are important because poverty is a matter of degree or intensity and not a simplified poornonpoor dichotomy meaning that a true measure of poverty must take account of distribution among the poor or the severity of poverty the crisis of has been extensively analysed for its effects on poverty and inequality larrea world bank