system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do taxpayers front the bill for sports stadiums ?

 Shouldn't that be a business's (NFL) responsibility ?
gpt
That's the bargaining chip that team owners use to keep them from moving to another city: build/improve our stadium or we walk. While the math is pretty fuzzy on what kind of economic benefit a sports team can provide, few mayors want to be the person who lost the local sports team.