I'm sure you could construct a list that shows no profits ever, and a list that shows massive profits every time (using the same level of evidence for both sides).
the primary issue is that it's extremely difficult to measure costs/profits for something as massive as an olympics. the secondary issue is that people tend to support their 'sides' narrative (keynesian or otherwise).
having the olympics costs a country X amount, and earns a country Y amount.
for some reason I think most people put Y at 0, and say that the country has wasted X (talking only about the 'price tag' of hosting). I can't tell whether people doing that are being dishonest to support a narrative, or whether they actually think that hosting an olympics earns a country nothing.
you can argue that Y is often or always less than X, but I rarely see Y even acknowledged.
I'm sure you could construct a list that shows no profits ever, and a list that shows massive profits every time (using the same level of evidence for both sides).
the primary issue is that it's extremely difficult to measure costs/profits for something as massive as an olympics. the secondary issue is that people tend to support their 'sides' narrative (keynesian or otherwise).