Why is America in a 15-year Slowdown?

One of the more interesting economic debates in the past couple of decades is why the economy is slowing down.

Since 2000 per capita GDP growth in the US has been 0.9% per year (SRC: FRED), compared to 2.3% per year in the previous 50 years. This is a big difference: at 2.3% growth we double in wealth every generation. At 0.9% it takes us close to a cent…