They also show a fall in real wages for unskilled labour, the group with the highest rates of unemployment. At the level of the economy as a whole, therefore, for the period since the mid-1990s, there is little sign that employers overall were pushed up their labour demand schedules. The evidence suggests that since the early 1990s outward shifts in the labour supply schedule and/or inward shifts in the labour demand schedule, combined with some feature(s) of wage determination that prevented market-clearing, left overall real wages little changed but unemployment much higher.