@article {22063,
	title = {Sophisticated Investors and Market Efficiency},
	journal = {Journal of Finance},
	volume = {LXIV},
	number = {4},
	year = {2009},
	note = {This paper was the 2009 AFA Presidential Address.},
	pages = {1517-1548},
	author = {Jeremy C. Stein}
}
