The evolution of secularization: cultural transmission, religion and fertility-theory, simulations and evidence

This study presents an evolutionary process of secularization assuming that cultural/social/religious norms (in particular the 'religious taste for children') are transmitted from one generation to the next via two venues: (i) direct socialization-across generations, by parents; and (ii) oblique socialization-within generations, by the cultural environment. The paper integrates a theoretical model, simulations and an empirical estimation, that lead to the following main findings: (i) direct religious socialization efforts of one generation have a negative effect on secularization within the next generation; (ii) oblique socialization by the community has a parabolic effect on secularization; and (iii) the two types of socialization are complementary in 'producing' religiosity in the next generation.