This article is by Dan Shaughnessy.
It has been written and published by Shaughnesses.
It is published here with permission.
You can find more of his work at Dan Shauseth’s blog, The Economics Job, or his website, TheEconomics Job.
This article was originally published on May 21, 2017.
It was republished on May 29, 2017 with permission from Dan Shau.