If declines were to occur, they likely would be accompanied by some economic stress, though the macroeconomic implications need not be substantial. Nationwide banking and widespread securitization of mortgages make financial intermediation less likely to be impaired than it was in some previous episodes of regional house-price correction.
Moreover, a decline in the national housing price level would need to be substantial to trigger a significant rise in foreclosures, because the vast majority of homeowners have built up substantial equity in their homes despite large mortgage-market-financed withdrawals of home equity in recent years.