as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
historical p/e ratios of small-cap vs. large-cap stocks?
user
there is most likely an error in the wsj's data.  yahoo! finance reports the p/e on the russell 2000 to be 15 as of 8/31/11 and s&p 500 p/e to be 13 (about the same as wsj). good catch, though!  e-mail wsj, perhaps they will be grateful.
assistant