Abstract:The economics of religion is a relatively new field of research in economics. This note examines whether and how permanent changes in religiosity, measured by church attendance, in the long run are affected by permanent changes in education, measured by three categories: primary, secondary, and tertiary education. Applying panel cointegration techniques to data from 20 Christian countries over the period , it is found that (i) only secondary education has a long-run relationship with religiosity, while there is no long-run relationship between religiosity and primary and tertiary education; (ii) secondary education has a strong negative long-run influence on religiosity; and (iii) long-run causality is unidirectional from secondary education to religiosity.