BOJ Rate Decision: Hyperinflation Pressures and the Yen's Stance

The decision of the Bank of Japan (BOJ) to increase interest rates in September, as suggested by an ex-director member, is proving complex. Inflationary pressures have been strengthening in the country with core inflation accelerating to 1.8% in July, its second consecutive month of increase. However, domestic consumption remains weak, creating uncertainties about how aggressively monetary measures can be implemented without causing further damage to the real economy. The market has already priced a rate hike in September at around 80% probability according to sources. A decision to keep rates unchanged now could be seen as a negative shock for the currency, with the yen possibly falling below its psychological level of 160 per dollar again. This adds a political dimension to the situation, with public comments favorable to a rate hike coming from the U.S. Treasury giving less space for Prime Minister Takaichi's economic team to oppose such measures. The risk of further hikes in a series is not to be dismissed, leading expectations that BOJ could push interest rates to around 2.75% by year-end. If this happens, it would represent a significantly tighter monetary path than the median economist forecast. This impact would extend beyond the September decision, affecting not only Japanese government bond (JGB) yields and carry trade strategies but also the yen's global currency positioning.