12

Lots of reasons. First, and primarily, there are a lot of sports, and sports teams, competing for spectators' attention in the U.S., and the subsequent ad dollars for TV airtime, stadium naming rights, on-field logos, etc. I realize there are other sports besides soccer in Europe, but the gap in overall popularity between association football and basketball ...


6

Here is the relevant information from the Wikipedia article on Promotion and Relegation. Originally the teams who finished bottom of the Football League (the top competition at the time) faced a process of re-election. The new league was not universally accepted as England's top-calibre competition right away. To help win fans of clubs outside the ...


6

In the light of the existing answers, and the wikipedia link given in the first comment to the OP, I believe the only factual answer one can give is: the difference in the business model. The franchise system, used in the Northern American leagues, both for the league itself and the teams, aim to secure and maximise the interest and viewership for the ...


5

The United States does use a relegation model, but it is the struggling player(s) who gets relegated to a team in the minor leagues, rather than relegating the entire team. It has the same effect of ensuring that only the best play in the top league; the system is just organized differently. There are many reasons it is done this way, but the most obvious ...


2

Sport around the world is about success on the field and the fans, in the US it is a franchise to make money. The owners of a team like the Mets for instance would rather come last every year in the 'Majors' and have the season over before half the games are played, than play in the 'second division' at the top of the league, simply because they would make ...


1

Possibly the most extreme system comes from Chess, and the McMahon competition format. The idea behind big drops in those instances are to ensure that competitors are, as often as possible, meeting evenly matched competitors. How often large adjustments in seeding, ranking and match-pairing are made in team sports, I cannot say.


1

One aspect that has been ignored in this discussion is the origin of the competition. In Europe all teams started locally as amateur teams. When you play, you have a vested interest in playing at a suitable level. Some amateur teams are only competing for the love of the sport, others are trying to be as good as they can within the limits of being an amateur....


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