The 50 + 1 rule, most famously found in German football, is the process that prevents private investors from taking over clubs. Rules in the German Football League states that commercial investors cannot have more than a 49% stake otherwise the club would not be allowed to play in the league.
This means that fans have a 50% ownership of a club and have the right to vote on all club initiatives.
Private ownership was strictly prohibited in German football until as late as 1998, maintaining the long-standing tradition of German teams being not-for-profit largely run by members.
With the introduction of private investment, the 50 + 1 rule was implemented in the same year. This rule has managed to keep debt under control and allows player wages and ticket prices to stay relatively low.
But would the 50 + 1 rule work in a league such as the Premier League where most clubs have a majority owner?