I reported the other day that Nobel laureate in economics Paul Krugman had not received an invite to President Obama's "Jobs Summitt" in early December. I now have an update from Anya Schiffrin, Joe Stiglitz's wife, who just emailed me (the email is real, we know each other):
I saw your post mentioning Joe. We never saw an invitation. It is possible they sent one and it didn't get passed on to us, but I am guessing he was not invited.