Responding, Liberal Democrat leader Vince Cable said:
"This is a very good analysis by the TUC. The Conservative pursuit of a hard Brexit is a big part of this, leading to a sustained level of inflation that is eating into wages. This means it is increasingly difficult for families to make ends meet.
"Another reason is a productivity problem that cannot be solved when there is such subdued government investment. According to the analysis, we will be one of the few developed economies to suffer a real wage decrease in 2018. The Conservatives' mismanagement is putting us in the economic relegation zone."