Would an increase in the retirement age threaten employment for younger people?

It is often claimed that increasing the retirement age may threaten employment for younger people , simply because the jobs held by older employees are not being freed up. To determine whether this claim is relevant, we compare employment rates for 20- to 29-year olds, 30- to 59-year olds and 60- to 64-year olds first over time, then between OECD countries. We show: In the historical dimension, a positive correlation between the employment rate of young people and that of the other age bracket s , except in the United States and Italy; In a comparison between countries, a very significant positive correlation between the employment rate of young people and that of other age groups. The dominant effect should be the effect of labour market policies and education and tax policies, which lead to moves in the same direction of the employment rates of all age groups.