They’ve found that some macroprudential policies, such as limits on mortgage loan-to-value ratios BIS central bankers’ speeches  3  and increased capital weight on bank holdings of mortgages – can moderate the growth of credit and house prices as well as improve the average creditworthiness of borrowers.
The impact of recent macroprudential tightening in Canada, which was aimed primarily at rules for insured mortgages, appears to support these findings.