The living conditions of children

This paper summarizes the socioeconomic conditions of children around the world. It explores solutions to the main problems, along with a summary of the costs and benefits of some of the solutions. Emphasis is on the results from rigorous studies, impact evaluations, and randomized experiments. Although the cost-evidence literature is scarce, a good case for early interventions and key quality-enhancing education interventions exists.Primary Education,Education For All,Teaching and Learning,Population Policies,Health Monitoring&Evaluation

A Bregman forward-backward linesearch algorithm for nonconvex composite optimization: superlinear convergence to nonisolated local minima

We introduce Bella, a locally superlinearly convergent Bregman forward backward splitting method for minimizing the sum of two nonconvex functions, one of which satisfying a relative smoothness condition and the other one possibly nonsmooth. A key tool of our methodology is the Bregman forward-backward envelope (BFBE), an exact and continuous penalty function with favorable first- and second-order properties, and enjoying a nonlinear error bound when the objective function satisfies a Lojasiewicz-type property. The proposed algorithm is of linesearch type over the BFBE along candidate update directions, and converges subsequentially to stationary points, globally under a KL condition, and owing to the given nonlinear error bound can attain superlinear convergence rates even when the limit point is a nonisolated minimum, provided the directions are suitably selected