I recently came across this article by Paul Krugman, which is different to his more recent writing (for one thing it is on his area of expertise, international

I recently came across this article by Paul Krugman, which is different to his more recent writing (for one thing it is on his area of expertise, international trade). It's both a great exposition of mainstream economic thought on trade, and a discussion of why otherwise educated people reject these ideas. The story on MakerBot's relocation of its manufacturing to China was my immediate inspiration for posting this, but I think it's relevant to a lot of discussions on HN.