Is this evidence for @bhorowitz's peacetime/wartime leadership dichotomy? http://www.psychologicalscience.org/index.php/news/releases/testosterone-promotes-reciprocity-in-the-absence-of-competition.html …
6:38 PM - 26 Jan 2014
0 replies
0 retweets
1 like
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.