It depends which league......
NCAA Basketball
soccer,rugby,horseracing.
Because the private sector is entirely geared towards creating revenue at the cost of anything else. By contrast, revenue-gathering is not a concern for the public sector, while spending any money that would otherwise be revenue in useful ways is a major concern.
The major source of revenue for Barbados is exporting. Sugar was the number one thing. Tourism is also one of the major sources of revenue.
The players unions have a major effect on sports. Often you see the unions asking for more money from the revenue that the teams generate. Often these result in strikes.
Just about every major city does this. They don't have space to store many merchandise and by selling it off at auctions it will give them much needed revenue to help fight crime.
All major airports have different rates for both short term and long term parking. This helps generate revenue for the airports.
Attack on Titan season 1 generated around $55 million in revenue from Blu-ray/DVD sales, merchandise, and streaming services. It was a major success both in Japan and internationally.
the major sources of revenue in india comes from the indirect taxes
A company called Perpetual Licensing has a useful website with a good description of merchandise licensing and how it works, as well as definitions of the major terms.
Football