The thing I'm curious about is the impact of rent controls on traffic and commute times. This is a big deadweight loss of rent control, I think - people will of

The thing I'm curious about is the impact of rent controls on traffic and commute times. This is a big deadweight loss of rent control, I think - people will often move because where they work changed, so if person A gets a job in person B's neighborhood and vice versa, the efficient outcome is for them to swap apartments rather than have opposite commutes. Rent control effectively locks people into their current apartment, which means some combination of longer commutes and taking worse jobs in lieu of an excessive commute that cannot be ameliorated by moving.