Commanders in Growth?
Charting Economic Growth Under Republican vs. Democratic Presidents
The Wall Street Journal and the Washington Post recently reported on a new paper by Alan Blinder and Mark Watson (here in PDF, hereafter BW13), which tackles what would seem to be a straightforward question: Why is it that since World War II the US economy has grown significantly faster under Democratic presidents than Republican presidents? This post looks at this question from the broader standpoint of policy research methods. I conclude that BW13 have asked the wrong question, one that lends itself to many answers or none at all, and perhaps it tells us more about policy research methods than anything else.