I would add that there are certain groups within the population that have a lower participation rate than the rest of the population. For example, we see this in persons with disabilities and aboriginal women. Some groups have older workers whose participation rate is lower. I think there have been a lot of studies of specific subgroups of the population, with a view to finding what might be done to encourage greater labour market participation among them.
On October 8th, 2009. See this statement in context.