The researchers focus on movements in "non-employment" as a share of the total population in three age groups between the final quarters of 2007 and 2012.

For instance, the growth of unemployment and non-employment which draws the attention of scholars has shown the deviations between economic growth and full employment.

The tide was turned because of that, nausea over market turmoil, news that non-farm employment sank by 159,000 in September (the steepest in five years) and because of furious business lobbying.