“For current homeowners, the decision to buy a new home is typically linked to their decision to sell their current home… Because of this link, the financing costs of the existing mortgage are part of the homeowner’s decision of whether and when to move.
Once financing costs for a new mortgage rise above the rate borrowers are paying for their current mortgage, borrowers would have to give up below-market financing to sell their home.
Instead, they may choose to delay both the sale of their existing home and the purchase of a new home to maintain the advantageous financing.”
“While there is a drop in the demand for homes, there is an associated drop in the supply of homes from the link between the selling and buying decisions. As both supply and demand move together in this way they have offsetting effects on price—lower demand decreases price and lower supply increases price.
“…unresponsive to movements in interest rates. In the current housing market, the driving force behind the increase in prices is a low supply of both new and existing homes combined with historically low rates. As mortgage rates increase, the demand for home purchases will likely remain strong relative to the constrained supply and continue to put upward pressure on home prices.”
Source: Keeping Current Matters, 3-22-18