I’ve been trading emails with “Great Divide” author Bill Bishop regarding this Gadflyer article by Philip Klinkner, and he was kind enough to send me an official response from himself and coauthor Robert Cushing. With his permission, I’ve posted it here (Word doc). Executive summary: Klinkner is misreading their data and by doing so is obfuscating clearly visible trends.
I understand there’s another installment of the Great Divide series in the works. I’ll be looking for it.
My Gadflyer article is a shorter version of one I wrote for a political science journal. It is available at:
http://www.bepress.com/forum/vol2/iss2/art2/
It contains all of the data and charts in question. Also Bishop and Cushing’s response and my counter-response should be posted shortly.