There have been studies conducted on this phenomenon. Unions apparent weakening are also due to the way our economy has changed. Big production centres went thr

There have been studies conducted on this phenomenon. Unions apparent weakening are also due to the way our economy has changed. Big production centres went through a phase of either decentralisation, or delocalisation. The former having for consequence that it's way harder to organise many smaller independent and geographically distributed locations than one big factory.