In the social sciences there is an ongoing debate about the primacy of structure or agency in shaping individual behaviors. This Special Issue presents a comprehensive set of papers on structure and agency in the area of later working lives and retirement, specifically focusing on situations where agency is constrained. The papers (a) study a diverse set of labor market situations in which individual agency is constrained, (b) focus on individual- and country-level predictors of constrained agency, and (c) provide insights regarding consequences of constrained agency in different areas of life. A broad range of country contexts are covered in the articles and rich—often longitudinal—data sources are used to advance our understanding of agen...