10-Year Normalized P/E Ratio (Part 1 of 3)

The 10-Year Normalized Price-to-Earnings ratio, commonly known as P/E 10, was originally introduced by Professor Robert Shiller in his ground-breaking book Irrational Exuberance [Princeton University Press 2000, Broadway Books 2001, 2nd ed., 2005]. The database used in the book is regularly updated and made publicly available on Professor Shiller’s website (www.econ.yale.edu/~shiller/).