Construction of homes, especially those that are affordably priced, has fallen in recent years, according to National Assn. of Realtors.
Homebuilders are passing the costs of delays on to consumers because demand for houses is so high.
Proposition 19 would remove a disincentive to sell property. But a decline in moving is squeezing the housing supply all over the country.
New research from Freddie Mac shows Minnesota, Idaho and Montana don't have enough homes to meet demand.
At the root of the trend is a need for companionship and, in an expensive state, financial support.