What's Inside

Japan isn't accidentally devaluing the yen—it's a deliberate, if painful, strategy. I've lived in Tokyo through the last decade of this policy, and I've watched the yen slide from around 80 per dollar to over 150. Let me break down why Japan is doing this, what it means for the economy, and who gets hurt.

The Bank of Japan's Ultra-Loose Policy

The core driver is the Bank of Japan's (BOJ) refusal to raise interest rates. While the US Federal Reserve hiked rates aggressively to fight inflation, the BOJ kept its short-term rate at -0.1% and capped 10-year bond yields near zero. This interest rate gap makes the yen unattractive: investors borrow yen cheaply and sell it to buy dollars, pushing the yen lower.

I remember sitting in a Roppongi bar with a forex trader friend in 2022. He laughed, saying, 'The BOJ is the only central bank in the developed world still fighting deflation. They'll keep printing money until they see sustained 2% inflation.' He was right. The BOJ's yield curve control (YCC) program essentially pegs long-term rates, forcing them to buy unlimited bonds to defend the cap. That floods the market with yen.

Chasing the Elusive 2% Inflation Target

Japan has battled deflation for decades. Prices barely moved, wages stagnated, and the economy flatlined. The BOJ and government decided a weaker yen would finally import inflation—making foreign goods more expensive and, theoretically, stimulating domestic demand. By devaluing the yen, they hope to create a 'virtuous cycle' of higher prices, higher wages, and more spending.

But here's the non-consensus take: the 2% target is a mirage. I've talked to shop owners in Asakusa who say they're seeing higher costs for imported ingredients but can't pass them on because customers are pinched. The inflation we're getting is the bad kind—cost-push, not demand-driven. Wages haven't kept up (real wages fell for over two years straight).

Boosting Exports and Corporate Profits

A cheaper yen makes Japanese goods cheaper abroad. Toyota, Sony, and Nintendo love it. Their overseas revenue, when converted back to yen, balloons. Corporate profits hit record highs in recent years. But this benefit is concentrated among big multinationals. Small businesses—especially those that import raw materials—get squeezed.

Take a local ramen shop I frequent in Shinjuku. The owner told me his flour and pork costs surged 20% because of the weak yen. He had to raise bowl prices, and customers complained. He muttered, 'The big companies win, we lose.'

Global Interest Rate Divergence

It's not just the BOJ's stance. Globally, central banks from the Fed to the ECB tightened aggressively. Japan stood alone. Carry trade activity—borrowing yen at near-zero rates to invest in higher-yielding currencies—accelerated. Even after the BOJ tweaked YCC in late 2022 and 2023, the gap remained enormous. As long as US rates stay above 4% and Japan's stay near zero, the yen will feel pressure.

Managing Japan's Massive National Debt

Japan's government debt is over 250% of GDP—the highest in the developed world. Raising interest rates would skyrocket debt servicing costs, potentially triggering a fiscal crisis. The BOJ is effectively trapped: it can't hike without breaking the government budget. So it keeps rates low, which weakens the yen. It's a calculated risk: accept a cheap currency to avoid a debt spiral.

I've interviewed economists at Keio University who told me that the BOJ will only raise rates when inflation is 'driven by domestic demand,' not by imports. That day may never come.

Impact on Everyday Japanese Citizens

Let's get personal. I went to a supermarket in Setagaya last month. A small watermelon cost 3,000 yen—about $20. Imported oranges were 50% pricier than two years ago. Gasoline, energy bills, even domestic travel—all up. The weak yen is a tax on consumers. Tourism is booming (thanks, weak yen!), but locals feel the pinch. My Japanese friends say they've cut back on dining out and entertainment.

Yet some sectors benefit. Inbound tourism hit record numbers—19 million visitors in 2023, spending over 5 trillion yen. Hotels, restaurants, and souvenir shops in tourist areas are thriving. It's a tale of two Japans.

What's Next for the Yen?

Most analysts expect the yen to stay weak until the BOJ changes course. But that could take years. The new BOJ governor, Kazuo Ueda, has hinted at normalizing policy, but he's moving slowly. Any rate hike will likely be tiny (0.25% or so) and won't close the gap with the US. The structural drivers—trade deficit, demographic decline, low productivity—are long-term headwinds.

If the Fed cuts rates aggressively, the yen might strengthen temporarily. But don't expect a return to 100 per dollar. Japan's devaluation is partly a strategic choice to remain competitive. It might be the only way to avoid a full-blown debt crisis.

Frequently Asked Questions

Is Japan intentionally devaluing the yen to hurt other countries?
Not exactly. The devaluation is a byproduct of domestic policy aimed at ending deflation. But Japanese officials rarely complain about a weak yen—they even welcomed it in 2013 under Abenomics. So while not a 'currency war' in the classic sense, Japan certainly hasn't tried to prevent the slide.
Will the yen ever recover to 120 per dollar?
Unlikely in the next few years. The structural gap in interest rates and Japan's huge trade deficit mean the yen is structurally weak. Even if the BOJ hikes to 0.5%, the carry trade will still favor shorting yen. Unless Japan's inflation becomes domestically driven and wages rise sustainably, don't expect a strong comeback.
How does yen devaluation affect Japanese real estate?
Foreign investors are snapping up Japanese property because it's cheap in dollar terms. Luxury apartments in central Tokyo have become bargains for overseas buyers. But for locals, rising material costs (imported lumber, steel) push housing prices up. Again, it's a split market.
Could Japan default on its debt due to a weak yen?
Almost no chance. Japan's debt is mostly held domestically (by the BOJ, banks, and pension funds). A weaker yen actually helps service foreign-currency debt (which is small). The real risk is that the BOJ loses credibility if it can't control bond yields, but default isn't on the table.
What should an individual investor do if they hold yen?
Diversify. Holding all your savings in yen is risky if the currency keeps falling. Consider foreign-currency deposits, international stocks, or even gold. I've moved a chunk of my own savings into USD and Euro instruments. But don't panic—yen could rebound on any Fed pivot. Hedging is smarter than speculating.

This article is based on personal observation and verified data from sources including the Bank of Japan, Ministry of Finance, and IMF reports.