プラザ合意
After the September 1985 Plaza Accord, the yen's appreciation hit the export sector hard, reducing economic growth from 4.4 percent in 1985 to 2.9 percent in 1986. The government attempted to offset the stronger yen by drastically easing monetary policy between January 1986 and February 1987. During this period, the Bank of Japan (BOJ) cut the discount rate in half from 5 percent to 2.5 percent. Following the economic stimulus, asset prices in the real estate and stock markets inflated. This caused an asset bubble. The government responded by tightening monetary policy, raising rates five times, to 6 percent in 1989 and 1990. After these increases, the market collapsed.