With global markets what will end happening is that 4-day work jobs will not be able to compete with 5-day work jobs. The consumers will buy the things that are

With global markets what will end happening is that 4-day work jobs will not be able to compete with 5-day work jobs. The consumers will buy the things that are cheaper. And besides, why do you need a government to mandate that and force people to do it? They aren't any laws forbidding working less and both parties can decide that a particular contract covers a 4-day work week. It's a bad idea to regulate something that don't need regulation.