US Employment to Population Ratio in 10-Year Decline

A reader asked that I add a trend line to the chart posted at US Employment to Population Ratio Declining. Gladly. Find below the original chart for August 2010 with the addition of a 5th order polynominal trend line (see equation on chart). Note that the US employment to population ratio has been trending downwards since 2000.

[click to enlarge]

I will include a trend line in future updates as well.