Structural and timing transformations of fertility - threats to demographic security of the Republic of Tatarstan

Introduction. The relevance of the article is determined by the importance of assessing the determinants of fertility to determine the possible prospects for its change and the correct justification of the directions and measures of demographic policy aimed at increasing it. The aim of the study is to identify the determinants of fertility decline in the Republic of Tatarstan in 2020-2022 in comparison with the pre-pandemic period and to predict their impact.