yes, and there was a huge well funded study a few stanford professors conducted of rent control in SF in 2018 that is a much more accurate study of the affects of rent control policies.
"Rent control appears to help affordability in the short run for current tenants, but in the long-run decreases affordability, fuels gentrification, and creates negative externalities on the surrounding neighborhood."
To be clear, the rent control studied was a yearly rental increase of ~2/3 CPI, or 1-2% annually, while market rents increased at about 7% annually since the 50s in SF. The proposed policy is a rent cap of around 8%, which is higher than the aggregate rent increase in the SFBA over the past 30 years or so (also 7%). This isn't a rent control law as much as it is an anti gouging law, disallowing landlords from increasing rent 10-20% YoY, which happens to maybe 1-3% of the market.
https://www.brookings.edu/research/what-does-economic-eviden...