“…Medical education is expensive yet occurs in resource-constrained environments, [1][2][3] with growing expectations from various stakeholders (e.g., learners, educators, programme directors and policy makers) about the financial transparency and efficiency of educational programmes. [2][3][4] Although studies evaluating monetary costs are becoming increasingly popular in medical education, 4,5 their quality are often suboptimal, with many evaluating cost without a corresponding measure of educational or health outcomes. 2,5,6 Furthermore, although many scholars stress the context-dependent nature of cost-related research 1,[5][6][7][8][9] and argue for the use and development of theory, 4,6,7 to our knowledge, no cost-related research has yet been conducted in health professions education that privilege both context and the development/testing of economic programme theory as in realist economic evaluation (REE).…”