As long as prices keep rising landlords can hope for profits in the form of capital gains, and those who run into cash-flow problems can usually sell their way out of trouble.

ECONOMIST: Rising house prices have hidden a multitude of sins

Oddly enough, for those landlords adept at navigating the system, returns are likely to be unaffected by price caps, as long as properties were acquired after they had been imposed and the potential for income is understood.

ECONOMIST: Housing in New York City