The Wall Street Journal reports on a study out Monday that posits a housing shortage resulting from the lack of new building is more widespread than previously thought.

America’s housing shortage is more wide-ranging than cloistered coastal markets, stretching from pricey locales such as California and Massachusetts to more surprising places, such as Arizona and Utah.

Some 22 states and the District of Columbia have built too little housing to keep up with economic growth in the 15 years since 2000, resulting in a total shortage of 7.3 million units, according to research to be released Monday by an advocacy group for loosening building regulations.

California bears half of the blame for the shortage: The state built 3.4 million too few units to keep up with job, population and income growth.

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