Yen slide and RBI rate dilemma expose emerging market fractures

The yen’s slide has become the most glaring test of official nerve, as Japan’s currency defies record intervention and threatens to breach 160 to the dollar before the Bank of Japan can deliver a long-awaited rate hike on 16 June. Despite historic yen-buying operations last month, the currency was the worst performer among Group-of-10 peers, laying bare the limits of unilateral action. “Intervention is buying time, not turning the tide — the real pivot has to come from the BOJ,” said a senior fixed-income strategist in Tokyo. With the US dollar buoyed by the protracted US-Iran conflict, which has now raged for nearly 100 days, the yen’s vulnerability reflects a broader dollar dominance that is straining emerging-market defences.

Viewed from Mumbai, the Reserve Bank of India confronts a parallel dilemma as its Monetary Policy Committee concludes a three-day meeting on 5 June. Most economists expect the repo rate to be held at 5.25 per cent, but the backdrop has soured dramatically since the last meeting. A sharply weaker rupee — down over 6 per cent this year, its worst run in a decade — combines with rising fuel costs and the spectre of El Niño-driven food inflation. While a majority of forecasters in a poll anticipated a pause, four predicted a quarter-point increase, and nearly all see cumulative hikes of 50 to 75 basis points before the fiscal year ends. The central bank is also expected to revise its growth forecast downwards, signalling that the external shock can no longer be treated as transitory.

The same forces are reshaping credit conditions far from the headline currency battles. In Kenya, commercial banks have widened their net interest margins aggressively, slashing deposit rates by 4.7 percentage points while reducing lending rates by just 2.2 points, according to central bank data. The spread has swelled to 7.8 per cent, squeezing high-net-worth depositors as banks pursue bumper profits. In Moscow, mortgage lenders have grown markedly stricter: the gap between requested and approved home loans reached one-third in late 2025, with approval rates falling to as low as 30 per cent from 43 per cent a year earlier. Such caution pre-empts any formal monetary tightening, showing that banks are already pricing in higher risk and capital constraints.

Tehran’s housing market reveals a different facet of the credit crunch: state-directed deposit-backed loans for tenants exist in generous headline amounts, yet access remains blocked by uncooperative banks and bureaucratic inertia. Although the credit ceiling was raised by half this year and individual caps increased by a third, only 30 per cent of last year’s envelope was actually disbursed, leaving tens of thousands of eligible households in limbo. Meanwhile, Indian lenders are lobbying for the relaxation of decade-old restrictions on standby letters of credit that would allow offshore banks to lend more freely to non-resident Indians, creating a fresh channel for dollar inflows. Such expedients underscore the scramble for hard currency as the war in West Asia prolongs the pressure on developing-world balance sheets.

The coming weeks will be fateful. If the BOJ fails to deliver a sufficiently bold move, the yen’s decline could accelerate, undermining the credibility of intervention and raising imported inflation. India’s RBI, having so far resisted tightening, may be forced to act before August if the monsoon fails or crude spikes again. For a cohort of emerging and frontier economies, the lesson is sobering: in a dollar-centric system roiled by geopolitical strife, monetary policy is being pushed to its limits, and financial repression is already stirring political resentment in city after city.