I would love to see that data as well, but can’t find any reliable numbers that control for newness/niceness of the apartments. Anecdotally, I pay about $1000 a month less than market rate on the west side of LA due to rent control, which realistically is a big reason I haven’t already left LA entirely. It would take an offer in the $50k range to buy me out. Landlord offers tend to be lower than that [1].

[1] https://www.google.com/amp/s/la.curbed.com/platform/amp/2018...