Calling all chart geeks!
I am looking for charts that look like this:
I can think of three charts where two lines, basically parallel, diverged in the mid-70s, and one started growing exponentially, and the other stayed flat.
One that everybody knows is income growth by percentile; another is flat wage income vs. exponentially growing non-wage income; a third is life expectancy for the waged (flat) vs. the non-waged (increasing). All three charts have a similar shape, and in each case the divergence started in the mid-70s.
Too lazy and too late to find them, but I'm sure you've all seen them.
But I think there are a ton of other examples, but whenever I see one, I think, "Oh, I'll remember that one" and of course I never do. So, readers?
NOTE Could be anything. Doesn't have to be financial. Just the two curves, diverging starting in the mid-70s.