“…To be sure, not all studies have been focusing on impact and several studies have instead focused on the processes and mechanisms triggered by P4P/PBF (De Allegri et al , 2018; Lohmann et al , 2018; Renmans et al , 2020; Singh et al , 2021; Saddi et al , 2021a, b, 2023). This certainly helps us to better understand how these programmes work and even to some extent how context may impact its effectiveness.…”