Rent control is not the way to increase the amount of affordable housing, nor is it a solution to poverty, inequality, or segregation. Instead, it acts to restrict the supply of housing, transferring wealth to current tenants at the expense of future and market-rate tenants. Insiders—those living in rent-protected units—generally win at the expense of outsiders. In an effort to resist gentrification, rent control leads to the decay of the buildings, as owners have less revenue to spend on maintenance and improvements.

Regulating rents, in short, does more harm than good overall.

Read more here.