Tuesday, November 28, 2017

It's hard to escape the conclusion that US GDP has been highly dependent on fertility

Peak Baby Boom 1952-1957 when births per 1,000 of population averaged 25.17 (graph 1) is probably the simplest explanation for outsized GDP performance during the years when this generation turned 22 from 1974-1979. More babies in the 1950s equaled more GDP come the late 1970s.

We only wish for that GDP now.

Jimmy Carter, elected in 1976, still owns the best 4-year GDP record in the post-war, despite everything you've been told (graph 2). It's nothing special he did really, it's just that in 1975, the year before his election, you had the very peak of the Baby Boom turn 18, those born in 1957 when births per 1,000 hit 25.3 for the second and final time in the post-war. They and the rest of their cohort were ready to consume in numbers never seen before. Their era spanning from Nixon/Ford from 1972 when the first of them turned 20 through Reagan in 1984 when they turned 32 represents the coming of age of America's most powerful economic demographic and the period when America's GDP performance hit its highest levels (average 46.3%).

Their failure to have enough children themselves, however, is also a big part of the explanation for the GDP trend heading south after their time. They consumed, but they did not at all produce children like their parents had. In fact, the nadir of births per 1,000 before the current period occurred from 1972 to 1977, precisely the period exactly 20 years after peak Baby Boom 1952-1957. Births per 1,000 averaged just 14.92 during this period, a rate nearly 41% lower than their parents' era. So the most prolific fruit of the Baby Boom had gone on to become themselves the least prolific, having the fewest children ever.

Not surprisingly, without enough bodies the economy inevitably began to run out of gas starting about two decades after that. Clinton era GDP performance was never as good as Reagan's, and the era was marked by various warnings, not the least of which were the bond debacles of 1994 and 1999. The great Reagan bull market ended in August 2000, a recession ensued in 2001, average S&P 500 return has been reduced to 5.2% per annum over the last 17 years, and the GDP growth rate after Clinton has averaged just half what it averaged before Carter (16% vs. 32%). No wonder the trend is down so dramatically (graph 3).

The solution?

Have LOTS more kids, and wait 20 years, if you want America to still be America, that is. Otherwise, let in even more than the 1 million immigrants we already let in annually, and prepare to kiss your country goodbye.

But don't hold your breath. Births per 1,000 have fallen to an average of just 12.5 for the five year period 2011-2015.

They don't call it the suicide of the West for nothing.

graph 1
graph 2
graph 3