In the last twenty years, the European Union (EU) has introduced all except on of the following measures. Which is the odd one out?
1
A social charter on the rights of workers in the EU
2
A requirement for union recognition where a majority of workers ballot vote for such a union in a secret ballot
3
A provision for European works councils where a company has atleast 1000 employees across the EU
4
A requirement for employers to introduce information and consultation arrangements in establishment of a certain size