For an explanation of the shift in policy around 2006 that caused the Great Recession and the current housing shortage, I recommend Kevin Erdmann, “Housing Poli

For an explanation of the shift in policy around 2006 that caused the Great Recession and the current housing shortage, I recommend Kevin Erdmann, “Housing Policy, Monetary Policy, and the Great Recession” https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3667309 https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3667309 and his other articles https://www.mercatus.org/scholars/kevin-erdmann https://www.mercatus.org/scholars/kevin-erdmann. Erdmann disputes the standard explanation of the Great Recession that excess credit and behavioral economics caused a housing construction boom which caused a pop (e.g. the first Planet Money podcast The Giant Pool of Money, the movie The Big Short, the book House of Debt). Instead, he claims that there was never a construction boom at all; regulators killed the housing construction sector and entry-level mortgages because they mistook a shortage of homes in the Bay Area for a glut of homes in Las Vegas, and unrelated cities such as Atlanta were innocent victims.