Who said all academics swear by market efficiency? 
These two papers document evidence of the effect of folks like you.
http://papers.ssrn.com/sol3/papers.cfm?abstract_id=270958
http://papers.ssrn.com/sol3/papers.cfm?abstract_id=302602

These two papers document evidence of the effect of folks like you.
http://papers.ssrn.com/sol3/papers.cfm?abstract_id=270958
http://papers.ssrn.com/sol3/papers.cfm?abstract_id=302602