In a keynote speech, European Central Bank Executive Board member Philip R. Lane set out how geopolitical, technological and demographic shifts could reshape the euro-denominated monetary system and keep the inflation environment uncertain and potentially more volatile, increasing the premium on a resilient euro area financial architecture for effective monetary policy. Lane argued that scale economies in a monetary union help absorb common shocks through higher euro use in trade and finance, more efficient market infrastructure and payments, and deeper cross-border financial integration. He pointed to the digital euro, conditional on supporting legislation, and the Pontes and Appia projects as examples of investment intended to keep settlement in central bank money fit for a more automated and digitalised financial system, while noting that fragmentation risks can undermine these benefits. On the euro’s global role, he described the euro as firmly established as the second-largest international currency and cited signs in 2025 of higher demand for euro-denominated assets, including a 9% appreciation in the EUR/USD rate from 1.08 to 1.18 in the second quarter, stronger foreign debt flows into euro area non-monetary financial institutions, and robust euro bond issuance by non-euro area corporates. He also highlighted the role of the ECB’s swap and repo lines in supporting monetary policy transmission as foreign participation in euro markets evolves. A central theme was an “undersupply” of euro safe assets, with German Bunds too small in aggregate and EU-level common bond issuance not yet at the scale needed to underpin liquidity and related markets. Options discussed included additional jointly backed borrowing to finance Europe-wide public goods, including urgent funding of Ukraine, as well as proposals to create safe assets from national bond pools such as blue bond and red bond structures and sovereign bond-backed securities, with an illustrative calibration of blue bonds at 25% of GDP and debt service implying ring-fenced tax revenues of 0.5% to 1% of GDP if yields were 2% to 4%. On monetary policy, he reiterated a symmetric 2% medium-term inflation target and emphasised context-specific decisions that incorporate uncertainty and risks via scenario and sensitivity analysis rather than fixed-rule approaches.