Podinovski, Victor V., Wu, Junlin and Argyris, Nikolaos ORCID: 0000-0001-9555-0758 (2023) Production trade-offs in models of data envelopment analysis with ratio inputs and outputs: an application to schools in England. European Journal of Operational Research. pp. 1-14. ISSN 0377-2217 (Print), 1872-6860 (Online) (doi:https://doi.org/10.1016/j.ejor.2023.08.019)