LBS’ Hélène Rey joins Bank for International Settlements

The appointment of Hélène Rey as Economic Adviser and Head of the Monetary and Economic Department at the Bank for International Settlements is more than a distinguished career milestone.

It is a signal, quiet but unmistakable, about the intellectual direction of global central banking at a moment of structural strain in the international monetary system. From September 2026, Rey will not simply oversee the BIS’s formidable research apparatus; she will shape the analytical lens through which the world’s most powerful central banks interpret capital flows, financial cycles, and systemic risk. The role, previously held by Hyun Song Shin, has evolved into one of the most influential posts in global economic governance, sitting at the intersection of academic insight and policy coordination. That Rey now steps into it reflects both her scholarly authority and the growing relevance of her ideas to a world grappling with persistent imbalances, geopolitical fragmentation, and volatile capital mobility.

Rey’s intellectual signature has long challenged orthodoxies. Her work on the “global financial cycle” recast how economists understand monetary sovereignty, arguing that under conditions of open capital markets, independent monetary policy is far more constrained than traditional models suggest. This thesis has moved from provocative insight to policy-relevant doctrine, increasingly echoed in debates at institutions such as the International Monetary Fund and among G7 policymakers. In an era where financial conditions transmit rapidly across borders, her framework offers a coherent explanation for why domestic policy autonomy can feel illusory.

Her appointment comes on the heels of a series of recognitions that underscore her standing. A Fellow of the British Academy and a foreign member of the American Academy of Arts and Sciences, Rey has also been deeply embedded in the policy and research ecosystem that feeds into global decision-making. Her presidency of the European Economic Association in 2025 was marked by a renewed emphasis on bridging academic research and policy urgency, particularly around financial stability and cross-border spillovers. At the Centre for Economic Policy Research, where she serves as Vice President, she has helped steer influential research networks that increasingly inform central bank thinking. These accolades are not ornamental. They reflect a career defined by sustained engagement with the hardest questions in international macroeconomics: why crises propagate, how imbalances persist, and what institutional architectures can realistically contain them. Her advisory work with the IMF and G7 has further reinforced her reputation as a scholar who does not merely diagnose problems but translates theory into actionable policy frameworks. At the London Business School, where she has held the Lord Bagri Professorship since 2016, Rey has been both an intellectual anchor and a global ambassador.

Dean Sergei Guriev’s endorsement of her appointment reflects a broader recognition: that Rey represents a rare synthesis of academic rigour, policy relevance, and institutional credibility. Her continued affiliation with LBS, even while on leave, ensures that her influence will remain embedded in the next generation of economists and policymakers. Yet the timing of this appointment is as important as the individual herself. The BIS’s Monetary and Economic Department is tasked not only with producing research but with convening and quietly coordinating the world’s central banks. It is here, in closed-door meetings and carefully calibrated reports, that consensus is forged, or contested, on issues ranging from inflation dynamics to financial regulation and cross-border capital flows. Rey’s own statement acknowledges the stakes: a “critical juncture for the world economy and the international monetary and financial system.” That phrase, while diplomatically phrased, gestures toward a landscape defined by post-pandemic debt overhangs, shifting monetary regimes, and the reconfiguration of global trade and finance along geopolitical lines. In such a context, her longstanding focus on financial cycles and systemic interdependence is not merely relevant; it is essential. If her intellectual trajectory is any guide, Rey’s tenure may tilt the BIS further toward a worldview that prioritises global coordination over purely national solutions, and macroprudential frameworks over narrow inflation targeting. Her previous involvement in French macro- and microprudential authorities underscores a practical familiarity with the regulatory levers required to operationalise such thinking.

Ultimately, this is an appointment that aligns institution and intellect. The BIS gains not just a highly decorated economist, but a thinker whose ideas have already begun to reshape the contours of global monetary debate. And in Rey, the international policy community gains a steward capable of navigating the uneasy terrain between national sovereignty and global financial integration, arguably the defining tension of modern macroeconomics.