PSE follows the Diamond Open Access (OA) model, meaning that it eliminates both Article Processing Charges (APCs) and subscription fees, ensuring that publication is entirely free for authors and readers. Additionally, all published content is available at no cost to users or their institutions, with no registration requirements.

The adoption of this model aligns with the journal’s objective of facilitating knowledge dissemination and promoting research, fostering a global exchange of scholarly information. Furthermore, it reinforces the commitment to equity, inclusion, and accessibility in academic publishing. To sustain this open-access model, the journal is funded by the University of Córdoba.