This book provides a comprehensive theory-based analysis of current issues in population
economics. It addresses the most important problems caused by demographic changes using the
popular overlapping generations growth model by Samuelson and Diamond. Taking into account
families' fertility decisions it examines not only the demographic changes due to longer life
expectancy but also the effects of social security policy on demography and labor supply
individual retirement behaviors. Conducting all analyses in a dynamic general equilibrium
setting the book offers a valuable theoretical reference guide in the field of population
economics.