RT Conference Proceedings T1 Evaluating the efficiency of primary schools in Canary Islands: A Three-Stage SBM Approach. A1 Ladrón de Guevara Rodríguez, María A1 Oliveira Henriques, Carla A1 López-Agudo, Luis Alejandro A1 Marcenaro-Gutiérrez, Óscar David K1 Educación - Evaluación AB Education, as a process of human capital accumulation, is essential for a society’s economicgrowth. Given its relevance and bearing in mind that public spending is not exclusively devotedto financing the education system, it is essential to analyse and identify the different obstaclesthat hinder school efficiency. Throughout this paper we have carried out an efficiency analysis ofCanarian schools for the period 2018-2019 using data provided by the Canarian Agency forUniversity Quality and Educational Assessment. Specifically, a three-stage data envelopmentanalysis (DEA) based on the slack measure (SBM) and combined with stochastic frontier analysis(SFA) has been applied to find the benchmarks of inefficient schools, understand theircharacteristics and explore the different opportunities for improvement. Using this non-parametric methodology, we can overcome one of the drawbacks of the DEA approach byenabling us to consider the influence of contextual variables and random errors in the assessmentof efficiency. In particular, using mathematics and reading scores as outputs, teacher-student ratioand an index of the quality of schools’ educational resources and some contextual variables suchas socio-economic status, we have tried to find out how efficiency varies when contextualvariables are introduced, and which contextual variables have the greatest influence on schools’inefficiency. YR 2023 FD 2023 LK https://hdl.handle.net/10630/27989 UL https://hdl.handle.net/10630/27989 LA eng NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026