Why is the interest rate gap between Japan and the US impacting the yen?

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The Interest Rate Gap Between Japan and the US is Weakening the Yen Through Carry Trade Activities

The significant difference in interest rates between Japan and the United States is a primary factor contributing to the yen's depreciation. This disparity encourages investors to engage in a practice known as the "carry trade," where they borrow funds in yen at low interest rates and subsequently invest them in assets denominated in other currencies, such as the US dollar, which offer higher returns. This strategy leads to substantial capital outflows from Japan, exerting downward pressure on the yen's value.
Encouragement of Carry Trade

The widening interest rate differential, particularly between the Bank of Japan's accommodative monetary policy and the higher rates set by the US Federal Reserve, creates an incentive for financial institutions and individual investors. These entities can exploit this gap by obtaining yen at minimal borrowing costs and then converting these funds into currencies of economies with more attractive yields. For instance, if US interest rates are significantly higher than those in Japan, the potential profit from investing dollar-denominated assets after borrowing yen can be substantial.
Capital Outflows and Yen Depreciation

The carry trade strategy inherently results in capital moving out of Japan. As investors sell yen to purchase foreign currencies for their investments, the supply of yen in the foreign exchange market increases, while demand for it decreases. This imbalance directly contributes to the yen weakening against other major currencies. The reported intervention by Washington and Tokyo, which saw the yen briefly rebound, highlights the severity of these capital outflows and their impact on the currency's valuation, with estimates of Japan's intervention potentially reaching ¥8.45 trillion according to analysts cited by the Financial Times.
Persistent Divergence and Future Outlook

The situation is exacerbated by market expectations that the US Federal Reserve may continue to raise interest rates. This prospect further widens the interest rate divergence, making the yen an even more attractive currency for carry trades. The persistent nature of this divergence, driven by differing monetary policy stances, suggests that the downward pressure on the yen could continue unless there is a significant shift in either Japan's or the US's interest rate policies or a substantial change in global economic conditions.

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Why is the interest rate gap between Japan and the US impacting the yen?

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