Moyes is supportive of spending controls.
He said: "I've always hoped that money wouldn't be the biggest thing in football. Leicester City won the league a few years ago and I think that really gave everyone the feeling that anything was possible.
"You've seen different teams challenging for Europe as well, like West Ham, and I think you always want football to give teams a chance. If it's solely down to money, I don't know if you'd get bored of it in the end.
"I hope there is a cap. I hope there's something that does control spending in the Premier League. I'm not an expert in it so I wouldn't be able to advise how you'd go about doing that, but because I'm a football man I want the game to give everyone an opportunity to have success."