Global Financial Data has added 40 CAPE Ratios to its database, primarily for OECD countries.
The CAPE Ratio is the cyclically-adjusted price-to-earnings ratio, also known as the Shiller P/E, which was developed by the Nobel Prize winning economist Robert Shiller. The CAPE Ratio is a moving average and is calculated as the price divided by the average of ten years of earnings. Graham and Dodd, in their classic book, Security Analysis, argued in favor of smoothing out P/E Ratios to avoid the volatility inherent in the ratio.
The CAPE Ratios for the United States have the most history, going back to 1881 for the S&P Composite and 1929 for the Dow Jones Industrial Average. CAPE Ratios for the United Kingdom begin in 1937, and CAPE Ratios for Canada and Japan begin in 1966. CAPE Ratios for many other developed countries begin in 1979 and those for emerging markets begin in 1998. Global Financial Data has added a Main Indicator for the CAPE Ratios so you can easily access the data.