“…This study uses the term religiosity in a broad sociological sense as the numerous aspects of religious activity, dedication, and belief (Farooq et al, 2019). This paper offers a comparative analysis of human capital development and economic growth in predominantly Orthodox Russia, where 72% of respondents in 2008 identified themselves as Orthodox) (Lamoreaux & Flake, 2018), Kazakhstan, where Muslims form around 70% of the population, and Orthodox citizens account for 26% (Summers et al, 2017), and Protestant countries, including the United States, the United Kingdom, and Germany. Each of these three countries has specific features in the manifestation of religiosity and historical features of Protestantism's influence on behavior and economic models (Kersting et al, 2020;Lee et al, 2019;Toprak, 2019).…”