"Abnormal Returns Of U.S. House of Representatives" by Alan J. Ziobrowski, James W. Boyd et al. - http://www.bepress.com/bap...
"A portfolio that mimics the purchases of House Members beats the market by approximately 6% annually" - Simon
I read somewhere they are exempt from insider trading charges. - Private Sanjeev
Wow, I didn't realize that they were exempt: http://online.wsj.com/article... - Simon