Are there any common features among the OECD countries that have maintained high productivity gains?

We compare 19 (advanced) OECD countries in terms of: Productivity growth; The investment rate in new technologies; The level of R&D spending; The average age of the population aged 15 to 64; The level of military spending; The skills of the labour force and young people; The weight of manufacturing industry in the economy. We find that OECD countries that have had high productivity gains since 2012 have: A high investment rate in new technologies; A low average age or small change in the average age of the labour force; High military spending.