ECB readies two more rate hikes as Iran-war inflation bites—while Indonesia tightens to defend the rupiah

The European Central Bank is preparing for two additional interest-rate increases in 2026, according to a Bloomberg survey, with the key driver being a renewed inflation impulse linked to the Iran war. The same reporting thread frames Europe’s macro outlook as a squeeze: inflation rising while growth remains fragile, leaving policymakers with less room to maneuver. In an interview published by NZZ, ECB Council member Martin Kocher argues that the Iran conflict threatens to keep inflation high even as the economy weakens, and he discusses how the ECB is likely to respond. Kocher also weighs the political economy of inflation management, including his view on fuel-price brakes, signaling that distributional tools may collide with monetary credibility. Indonesia’s monetary authorities are simultaneously leaning into capital-flow management as the rupiah weakens. Bloomberg reports that outstanding central bank bills rose the most in almost two years last month, reflecting a deliberate effort to attract inflows and stabilize the currency. In parallel, Nikkei highlights a domestic political-financial shift: Indonesian state banks are gaining momentum while private rivals struggle under Prabowo’s policy direction. Together, these stories point to a broader pattern in emerging markets where political policy choices and central-bank liquidity operations interact with external shocks, including energy-linked inflation pressures. For markets, the ECB path implies tighter European financial conditions, which typically strengthens the euro and pressures rate-sensitive sectors such as real estate, utilities, and highly leveraged corporates. The direction of travel is toward higher yields and a repricing of duration risk, with inflation expectations likely to remain sticky if Iran-war transmission continues. In Indonesia, higher central bank bill issuance signals a more aggressive liquidity-absorption stance, which can lift short-end money-market rates and support the rupiah, but may also raise funding costs for banks and corporates. The combined effect is a cross-regional tightening impulse: Europe’s policy rate expectations can strengthen global carry dynamics, while Indonesia’s defense of FX can influence local bond demand and the banking sector’s relative competitiveness. What to watch next is whether the ECB’s inflation data confirm the survey’s “two hikes” baseline and whether growth indicators deteriorate enough to force a more cautious tone from policymakers like Kocher. For Indonesia, the key trigger is whether rupiah weakness persists despite the surge in central bank bills outstanding, and whether inflows materialize without destabilizing credit growth. Investors should monitor ECB communications for any shift toward fiscal or targeted price measures, since fuel-price brakes could become a flashpoint for credibility if they are seen as substituting for monetary action. The escalation/de-escalation timeline hinges on the next inflation prints and central-bank bill auctions, with the highest sensitivity likely in the next few weeks as markets test the durability of both the ECB tightening path and Indonesia’s FX stabilization strategy.

Geopolitical Implications

• 01

  Iran-war macro spillovers are tightening Europe’s policy trade-offs and raising credibility risks for inflation control.

• 02

  Indonesia’s FX defense via bill issuance shows how external shocks are forcing active capital-flow management.

• 03

  Domestic policy direction is reshaping Indonesia’s banking landscape, potentially altering credit transmission during global tightening.

Key Signals

• —Confirmation or revision of the ECB’s “two hikes in 2026” expectation in upcoming inflation and policy communications.
• —Rupiah response to central bank bill issuance and whether inflows offset weakening momentum.
• —Any ECB stance shift on fuel-price brakes or targeted subsidies that could affect inflation expectations.
• —Banking-sector performance divergence between state and private lenders under Prabowo-linked policies.