WERE JAPANESE STOCK-PRICES TOO HIGH

This paper asks whether market fundamentals can explain the recent run-up and decline of Japanese equity values and price-earnings ratios. Accounting differences explain about half of the long-run disparity between U.S. and Japanese P/Es. For example, if Japanese firms used U.S. accounting rules, the Japanese P/E ratio would have been 32.6, not 53.7, in 1989. Accounting differences cannot, however, explain the doubling of this ratio in 1986, nor its decline in 1990. Similarly, we are unable to isolate changes in required stock returns or growth expectations that are large enough to explain recent Japanese stock price movements. © 1991.