Brad DeLong might be right. At the recent AEA meetings he said something to the effect that America has a housing shortage, as many families are doubling up. I thought it was a clever, counter-intuitive way of thinking about the aggregate demand shortfall.
This got me wondering about the commentators who insist that easy money caused America to build a vastly excessive number of housing units, and that’s why there are record housing vacancies today. It seems to me that when you look at the data, housing construction has not been excessive in the period beginning in 2002, when the Fed allegedly cut rates too low. See what you think, and as you do so keep in mind that America had 220 million people in 1978, and 300 million by 2008. So construction in per capita terms has actually had a slight downward trend since 1978 (the earliest figures I could find.)
Year |
Single-Family |
Multifamily |
Total |
2010 |
470,900 |
116,700 |
587,600 |
2009 |
445,100 |
108,900 |
554,000 |
2008 |
622,000 |
283,500 |
905,500 |
2007 |
1,046,000 |
309,000 |
1,355,000 |
2006 |
1,465,400 |
335,500 |
1,800,900 |
2005 |
1,715,800 |
352,500 |
2,068,300 |
2004 |
1,610,500 |
345,300 |
1,955,800 |
2003 |
1,499,000 |
348,700 |
1,847,700 |
2002 |
1,358,600 |
346,400 |
1,704,900 |
2001 |
1,273,300 |
329,400 |
1,602,700 |
2000 |
1,230,900 |
337,800 |
1,568,700 |
1999 |
1,302,400 |
338,500 |
1,640,900 |
1998 |
1,271,400 |
345,500 |
1,616,900 |
1997 |
1,133,700 |
340,300 |
1,474,000 |
1996 |
1,160,900 |
315,900 |
1,476,800 |
1995 |
1,076,200 |
277,900 |
1,354,100 |
1994 |
1,198,400 |
258,600 |
1,457,000 |
1993 |
1,125,700 |
162,000 |
1,287,600 |
1992 |
1,029,900 |
169,900 |
1,199,700 |
1991 |
840,400 |
173,500 |
1,013,900 |
1990 |
894,800 |
298,000 |
1,192,700 |
1989 |
1,003,300 |
372,900 |
1,376,100 |
1988 |
1,081,300 |
406,700 |
1,488,100 |
1987 |
1,146,400 |
473,800 |
1,620,500 |
1986 |
1,179,400 |
626,000 |
1,805,400 |
1985 |
1,072,400 |
669,500 |
1,741,800 |
1984 |
1,084,200 |
665,300 |
1,749,500 |
1983 |
1,067,600 |
635,500 |
1,703,000 |
1982 |
662,600 |
399,700 |
1,062,200 |
1981 |
705,400 |
378,900 |
1,084,200 |
1980 |
852,200 |
440,000 |
1,292,200 |
1979 |
1,194,100 |
551,100 |
1,745,100 |
1978 |
1,433,300 |
587,100 |
2,020,300 |
Source: U.S. Census Bureau
Here’s my assumption. Housing construction normally seems to fluctuate between one and two million units. Let’s take 1.5 million as roughly the trend rate which keeps up with population. Yes, it’s true that we exceeded that number every single year from 2002 to 2006, and the total excess production was about 1.87 million units. That’s a lot. But over the next four years there was a shortfall of about 2.6 million units. So why do we seem to have a hugely excessive number of homes, if we are actually 730,000 short?
One answer is a decline in immigration. A year ago I suggested that the decline in immigration might have played a role in the housing crash. I think it’s fair to say my theory wasn’t met with widespread acclaim. So if that’s why I’m wrong today, if less immigration explains our housing surplus, I’ll take it. At least I would have been right last year, on a point all the pundits missed.
But I doubt that’s big enough to make a major difference. Even last year I merely suggested it was a contributing factor in the Southwest. A more likely explanation is that the sharp fall in NGDP led to mass unemployment, especially among the young. This caused them to start living with their parents, even when in their 20s (something I couldn’t even imagine doing when I was young.) In that case the problem isn’t that too many houses were built (well actually a few too many were, but they should have been quickly absorbed in a country with 120 million units) but rather too little demand, because people have too little money. And who determines how much money there is in the economy?
There’s a way to test my theory. If the other side is right, and we have all these vacant homes because we built way too many in the middle of the decade, then the number of vacant home should have dropped rapidly during the last three years, and especially during the last two years. The year 2008 was the first year below a million since my records began in 1978 (and probably much earlier.) That’s clearly below any reasonable estimate of normal absorption. Then in 2009 and 2010 we were down close to a half million units, a mind-boggling low rate of construction. Vacancies should be plunging under any reasonable estimate of market absorption. But guess what, over the past three years there has been no decline in housing vacancies (assuming I am reading the 5 year version of this graph correctly); vacancies have leveled off since March 2008 at just under 19 million units, up from 16 million in early 2006.
Given ultra-low construction, and US population growth of about 3 million/year, there is only one explanation for that pattern. Astoundingly low demand for housing. Do young people actually enjoy living with their parents, or might America be experiencing an aggregate demand shortfall?
Another reason we need more NGDP.
This was spurred by a Chicago alumni magazine article that made the following claim:
Economic recovery will be slow, [Erik] Hurst says, because the massive misallocation of resources that the housing boom created cannot be quickly remedied. During the ten years after 1997, he said, 40 percent more housing was constructed in the United States than in any decade on record. Today 2.3 percent of single-family homes are vacant, an increase of more than 64 percent since 2005.
The housing oversupply, in turn, has contributed significantly to high unemployment. As the construction industry boomed, much of the American workforce shifted to housing-related industries, on both the construction and banking sides. Now, of 3 million open jobs in the United States, only 65,000 are in housing-related fields, Hurst said. Thus, many unemployed workers are qualified for jobs that are no longer available””jobs, he predicts, that won’t come back.
This is completely inaccurate. As you can see from the table, housing construction in 1998-2007 was only 8.4% above the levels of 1978-87. And it was much lower in per capita terms. The 2.3 million single family homes that are vacant are probably little changed from a few years ago, whereas the number should be plunging with low construction. There is no reason construction jobs shouldn’t come back, unless we shoot ourselves in the foot. As I showed, housing construction in the past decade has been below normal. If all you knew was the housing construction data from the noughties, you’d expect another 1.5 million homes a year to be built in the teens, just like other decades. I’m not saying that will happen. Indeed I think it won’t happen. But if it doesn’t there will only be two possible explanations; a crackdown on immigration or a prolonged NGDP deficiency (perhaps combined with supply-side problems with the labor market.) It won’t be because we built too many houses in the 2000s. We didn’t.
PS. Please do not tell me about local housing markets. I am claiming America has too few homes; I completely agree that Detroit and Vegas have too many.