If you’re using Textmate 2, LaTeX, and Mountain Lion, you may run into an this error message when trying to compile latex documents with postscript graphics:
!!! Error: Cannot open Ghostscript for piped input
The solution is to add a PATH variable to Textmate with the following contents:
Greg Mankiw links to a post by Bryan Caplan and refers to findings from a study summarized in Kahneman’s Thinking Fast and Slow to suggest that we might be able to explain income inequality using individuals’ preferences for higher and/or lower incomes. Kahenman as quoted by Mankiw:
"People with a gift for other languages could have different brains from those of other people, a study suggests."