For a recent presentation, I graphed gdp/capita against ease of starting a company in more than 100 countries around the world. Here is the result for countries with GDP/capita more than $20k. Note that “ease of use” is a ranking, so big numbers are bad (low ease) and low numbers are good (high ease).
And here is the result for countries with GDP/capita less than $20k:
There are all sorts of issues with measures, dependent and independent, so I wouldn’t make overly much of it, but it’s still interesting stuff.