The global multidimensional poverty index (MPI) has been very useful in shining a light on child poverty. When, in July 2017, the global MPI was age-disaggregated to profile children’s poverty, the Executive Director of UNICEF at that time, Tony Lake, stressed in his High Level Political Forum address the headline that half of the world’s poor people who live in acute multidimensional poverty, according to the global MPI, are children. The global MPI is an index of acute multidimensional poverty that covers three-quarters of the world’s population –mainly those living in developing regions– and over 100 developing countries. It is produced by OPHI at the University of Oxford with UNDP’s Human Development Report Office.