Quote: Original post by HostileExpanseQuote: Original post by Way Walker
A slope of 0.021 means doubling every 33 years. That's maybe a small slope if we're asking what will happen in our lifetime (it's still asking for a doubling in productivity between entering and leaving the workforce), but not so small if we ask what will happen in our grandchildren's lifetimes....
Well .. recall that in our children's lifetime both population and technology growth in certain sectors will have grown exponentially as well.
Population growth (of the workforce) alone could theoretically reach a 2% rate. In any case, I personally agree with the notion that a fair amount of the US's economic growth is not safely sustainable... I actually run into some idealistic overlap with libertarians on this topic
As I mentioned, the data I was fitting were per capita. If we do the same for the total population we get a 3.3% rate, so about 1.2% of the increase in real gdp can be attributed to population growth. If we look at nominal gdp the fits aren't as good, but the rate is 7.2% for the total population and 6% per capita, the same 1.2% difference, and 3.9% higher than the real gdp (which normalizes prices).
So, the nominal gdp of the U.S., taking the data from 1950 to 2008, increases at a rate of 3.9% due to inflation, 1.2% due to the increased workforce, and 2.1% due to other sources (e.g. technology).