How Japan’s desperate attempt to save its currency triggered a decade of economic stagnation
In short: In the late 1980s, Japan fought to prevent the yen from strengthening, slashing interest rates to stimulate growth. This policy fueled a massive, speculative bubble in real estate and stocks. When the Bank of Japan finally tightened credit, the resulting crash ushered in a long, painful era of economic decline.
The Japanese asset price bubble, spanning 1986 to 1991, was rooted in the aftermath of the 1985 Plaza Accord. As the yen surged, Japan faced the 'endaka recession,' prompting the Bank of Japan (BOJ) to prioritize curbing currency appreciation over domestic stability. By February 1987, the BOJ had slashed the official discount rate to 2.5%. This aggressive monetary easing, combined with fiscal expansion, flooded the market with credit and encouraged rampant speculation in land and stocks.
The scale of the inflation was staggering. By 1986, average land prices in Tokyo commercial districts had jumped approximately 122% compared to 1985. Meanwhile, the Nikkei 225 index climbed from 13,024 in early 1986 to a record high of 38,957.44 by December 1989. Investors, finding land scarce in Tokyo, pushed speculation into surrounding prefectures like Kanagawa, Saitama, and Chiba, as well as major cities like Osaka and Nagoya.
The BOJ’s exit strategy was hampered by international pressure and domestic uncertainty. Although officials signaled potential tightening in the summer of 1987, the 1987 Black Monday market crash in the United States caused a critical delay. It was not until March 1989 that the BOJ finally raised the discount rate, eventually pushing it to 6.00% by 1990. The bubble burst in early 1992, leading to a massive accumulation of non-performing loans and the start of the 'Lost Decade.'
While some researchers blame the BOJ's delayed reaction, others argue that external pressures—such as G-7 joint statements and the need to stabilize the dollar—forced the BOJ to prioritize foreign exchange rates over domestic economic health. The legacy of this period was profound; nationwide land prices did not begin to recover until 2018, marking a generational struggle to overcome the fallout of the bubble's collapse.
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- Summary by Intellect · source: Japanese asset price bubble
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