Title: Bank of Japan’s Policy Shift and Its Potential to Unwind the Yen Carry Trade
By: Brad Setser (Original Author), Adapted and Expanded
The Bank of Japan (BoJ) has long been recognized for taking an ultra-accommodative monetary policy stance, keeping interest rates low and maintaining aggressive asset purchases. For over a decade, this approach enabled the proliferation of the yen carry trade, a popular forex strategy where investors borrow yen at low cost to invest in higher-yielding assets abroad. However, recent developments indicate that the BoJ could be inching towards policy normalization, a move that might set off a major realignment in global currency and bond markets. The possibility of the yen carry trade unwinding is becoming more tangible.
This analysis expands upon Brad Setser’s original article on Seeking Alpha, offering further insight into the historical context, current economic dynamics, and potential global consequences of Japan’s evolving monetary posture.
Overview: Japan’s Diverging Path Reaches a Crossroads
For years, Japan stood out among developed economies for its zero-interest-rate policy and consistent balance sheet expansion, while other central banks began tightening monetary policy in response to rising inflation, particularly after the COVID era. As a result, Japan experienced significant exchange rate pressure, with the yen depreciating to multi-decade lows against the US dollar during 2022 and 2023.
Key Developments:
– Japan’s inflation has persistently remained above the BoJ’s 2 percent target.
– Wage growth in Japan, historically stagnant, has started to pick up.
– Capital outflows driven by Japanese investors seeking higher yields abroad contributed to yen weakness.
– The BoJ is signaling a policy reassessment after maintaining yield curve control (YCC) and negative interest rate policy (NIRP) for several years.
Understanding the Yen Carry Trade
The yen carry trade was enabled by Japan’s extremely low interest rates. Investors could:
– Borrow yen at close to zero interest.
– Exchange the yen for higher-yielding currencies (like USD, AUD, or BRL).
– Invest in foreign bonds or risk assets for positive yield differential.
This arbitrage-like strategy became even more attractive as central banks in the US, UK, and elsewhere hiked rates rapidly beginning in 2022. The Federal Reserve, for instance, raised its key rate from near zero to over 5 percent in just over a year.
As a result:
– The interest rate differential between Japan and other countries widened dramatically.
– The yen weakened significantly, falling from 115 per USD in early 2022 to over 150 in late 2023.
– Japanese investors increased their holdings of US Treasuries, mortgage-backed securities, and European bonds.
Consequences of a Weak Yen:
– Imported inflation rose within Japan.
– Japanese households and businesses faced rising food and energy costs.
– Pressures mounted on the BoJ to intervene or tighten policy to defend the currency.
Shift in Domestic Fundamentals
While Japan previously struggled with deflation and stagnant wages, more recent trends support the case for policy tightening.
Key shifts include:
– Core inflation surpassed 3 percent in much of 2023.
– Large Japanese firms granted significant wage increases in spring wage negotiations (Shunto).
– Japan’s GDP maintained modest but consistent growth.
– The labor market tightened, pushing services and non-traded sector prices higher.
This environment suggests that the traditional deflationary mindset in Japan may be giving way to more inflation acceptance, making the BoJ’s ultra-easy settings appear increasingly outdated.
Yield Curve Control: A Key Turning Point
A crucial component of the BoJ’s monetary policy is its yield curve control framework, introduced in 2016. Under YCC, Japan capped the 10-year Japanese Government Bond (JGB) yield at or near 0 percent.
Over time, however:
– The BoJ had to buy large volumes of JGBs to defend this cap.
– This distorted bond market pricing and reduced liquidity
Explore this further here: USD/JPY trading.