Using a micro-level model to generate a macro-level model of productive successful aging
Related Experiment Video
Updated: Apr 24, 2026

Frailty Assessment in an Aging Mouse Model
Published on: September 23, 2025
Jessica K M Johnson1, Natalia Sarkisian2, John B Williamson2
1Graduate School of Social Work, Boston College, Chestnut Hill, Massachusetts. jesskmjohnson@gmail.com.
Purpose Of The Study:
Aging successfully entails good physical and cognitive health, as well as ongoing participation in social and productive activity. This study hones in on participation in productive activity, a factor that makes an important contribution to successful aging. One conceptual model of productive activity in later life specifies the antecedents and consequences of productivity. This study draws on that micro-level model to develop a corresponding macro-level model and assesses its utility for examining the predictors of and explaining the relationships between one form of productivity (labor force participation rates) and one aspect of well-being (average life expectancy) among males and females.
Design And Methods:
Random effects regression models and path analysis were used to analyze cross-national longitudinal data for 24 high-income Organization for Economic Co-operation and Development (OECD) countries at seven time points (1980-2010; 168 observations total).
Results:
OECD countries with higher labor force participation rates among older workers have higher life expectancies. Labor force participation mediates the effects of gross domestic product per capita on male and female life expectancy, and it mediates the effect of self-employment rate for men, but it acts as a suppressor with regard to the effect of public spending on male and female life expectancy.
Implications:
A well-known micro-level model of productive activity can be fruitfully adapted to account for macro-level cross-national variation in productivity and well-being.
Related Concept Videos
Aging
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Erikson's Theory on Socioemotional Development during Adulthood
Intimacy Versus Isolation in Early Adulthood
Individuals in early...
Cognitive Development During Adulthood
The Effect of Aging on Tissues
Emerging Adulthood
Self-Evaluation Maintenance Model

