Bank of Japan's Monetary Policy in the 1980s: A View Perceived from Archived and Other Materials

This monographic paper summarizes views held by the Bank of Japan (hereafter BOJ or the Bank) in the 1980s regarding economic conditions and monetary policy formulation, perceived from the BOJ archives and other materials from the period. From a historical viewpoint, the authors see the 1980s as a watershed time for the Bank's policy formulation, because the Bank acquired lessons for monetary policy formulation under a large fluctuation in economic and financial conditions and innovated new approaches for monetary policy formulation and money market management as stated below. First, during the 1980s the BOJ had to largely consider the external imbalance in formulating policy, and attention began to shift towards price stability in the medium or long term by the end of the decade. Second, the large fluctuations in asset prices, money supply, and commercial bank lending were closely monitored during this period, but the Bank's assessment about their impacts on macroeconomic consequences in the medium to long term was insufficient. A reflection of these lessons appears to evolve into a perspective on the Bank's monetary policy formulation that financial imbalances should be examined as a risk for achieving price stability in the medium to long term. Third, in light of ongoing financial deregulation during this period, the Bank started to change monetary policy measures from those based on a regulated interest rate framework to those based on market operation with good use of money markets and flexible interest rates.