Application
In France
The sliding wage scale was introduced in France in July 1952 under Vincent Auriol's presidency (SFIO) and Antoine Pinay's government (CNIP).
It was removed in 1982 as Jacques Delors (PS) was Finance minister, in the second administration of Pierre Mauroy (PS).
In Italy
In Italy it was introduced in 1945, modified several times since and definitely removed in 1992.[1]