Are Japanese stock prices too high?

Abstract

This paper studies the behavior of Japanese stock prices, especially that of the price earnings ratio (PER) and the price dividend ratio (PDR) in the 1980s. It finds that movements in fundamentals such as the interest rate and the growth rate together with the widespread practice of cross share holdings between corporations fail to explain the behavior of PER and PDR in the 1980s. The sharp increases in the Japanese PER and PDR in the 1980s are due to one of the following three causes: bubbles, declines in risk premium, and expectations of land price inflation. The paper argues that the latter two may have been important features of the Japanese economy in the 1980s.