The share of the population over 65 years of age has been increasing in OECD countries over the past few decades. In 1960, 9% of the OECD population was over 65 years old, but the proportion rose to around 15% in 2010 (OECD, 201 la). This trend is expected to continue into the future, so that by 2050 the share of the population aged 65 or more is expected to reach 26% of the total OECD population. With rising life expectancy and improved healthcare, elderly citizens will be able to remain active longer, in many cases continuing to work well beyond the official retirement age.