This paper examines the impact of workforce demographics on aggregate productivity. The age structure of the workforce … is found to have a significant impact on aggregate productivity. A large cohort of workers aged 40 to 49 is found to have … a large positive impact on productivity. Out of sample predictions of output growth from 1990 to 1995 predict 17% of …

productivity depends on their age through the build-up of labour market experience and the depreciation of human capital. We make … two contributions to the literature on the macroeconomics of population ageing. First we show that it is important to … wisdom following an increase in longevity, depending on the corresponding change in the age-productivity profile. …