Study published by NBER links continued employment to slower cognitive decline in older men
Analysis of US labour market data indicates that negative demand shocks cause significant drops in cognitive scores among men aged 51 to 64.
Research published by the National Bureau of Economic Research (NBER) provides causal evidence that remaining in the workforce helps delay age-related cognitive decline. The study moves beyond previous correlational findings to establish a direct link between employment status and cognitive health, specifically highlighting men aged 51 to 64.
By analysing data from the Health and Retirement Study (HRS), researchers utilised exogenous shifts in local labour demand as an instrument to isolate the impact of employment. The findings indicate that negative labour market shocks lead to substantial declines in cognitive scores over time, suggesting that continuing to work may protect cognitive function during this critical demographic window.
The effect appears concentrated among men aged 51 to 64, whose employment decisions and outcomes seem more sensitive to local labour market conditions than those of women or older men. This focus extends past work that has traditionally looked narrowly at the retirement age window, offering further support to the notion that working to older ages may delay the onset of dementia.
The study addresses a growing concern regarding the population share of disability due to cognitive decline and dementia amidst increased life expectancy. Historically, many older adults in the United States leave the workforce well before age 65, a trend this research suggests could accelerate the pace of cognitive deterioration.
Researchers employed a Bartik instrument approach, exploiting plausibly exogenous shifts in labour demand within local markets to demonstrate the causal relationship. While the study establishes a clear correlation between labour market shocks and cognitive scores, the specific biological or psychological pathways by which employment slows decline remain unspecified in the available summary.
The findings indicate that the generalisability of the results to women and older men is limited, as the effects were not observed in those groups in the same manner. Additionally, the reliance on specific local labour market shocks as an instrument means the study may not fully capture all forms of employment variation or individual circumstances.
