A few weeks ago, I noted that there appeared to be correlation between government efforts to get more people into multifamily housing and low fertility rates. The correlation is not perfect — I estimated about 0.4 — because there are a lot of factors that affect fertility rates, but it appears strong enough that, if the goal is to have a healthy demographic structure, then single-family housing should be preferred.
Click image for a larger view. Source: BirthGauge.
Unfortunately, the census data I had available didn’t allow me to make a standard calculation of birth rates, so I used a substitute. Now, a group called BirthGauge has published the above map showing birth rates calculated the standard way. It does show that birth rates are lowest in the Pacific Coast and north Atlantic Coast states that have done the most to restrict new single-family housing in favor of multifamily. Continue reading
