In each case the labour force was projected individually by gender and five-year age group, with the overall labour force size the sum across both genders and all five-year age groups. Estimates of GDP per capita were calculated using a modified version of the long-term growth models presented in OECD Economic Outlook, No. These growth models estimate GDP based on a standard Cobb-Douglas production function with the usual long-term growth determinants (i.e. physical capital, human capital, potential employment and labour efficiency). Potential GDP across the projection period (here, 2012-2040) is estimated by projecting trends and changes in the various input components, with projections of the components themselves based on both long-term dynamics within the given country and on convergence patterns between countries (see OECD (2014c) and Johansson et al (2013) for details on the measures, data and assumptions used to project the individual components).