The appointment of Kevin Warsh as chair of the Federal Reserve comes at a particularly challenging time for monetary policy.At the beginning of the year, the US economy was on a path of steady growth and moderating inflation, with expectations building around a gradual easing cycle of policy rates.However, this trajectory was abruptly disrupted by a sharp escalation in geopolitical tensions, QNB stated in its latest economic commentary.Following the US-Israeli military campaign against Iran, launched on February 28, Tehran retaliated by effectively closing the Strait of Hormuz – the waterway through which approximately 20% of the world’s oil and liquefied natural gas (LNG) normally flows. The resulting surge in energy prices pushed US inflation close to 4%, nearly double the 2% target of monetary policy, triggering a reassessment of the outlook.In this context, the policy environment has shifted markedly, with inflation pressures re-emerging, market expectations undergoing a sharp repricing, and key debates intensifying around the appropriate policy framework, stated QNB, which discusses the main challenges confronting the Federal Reserve under Warsh’s leadership.“First, the outlook for policy rates has shifted significantly since the beginning of the year, reflecting a reassessment of inflation dynamics. At that time, moderating price pressures had led markets to anticipate a gradual easing cycle by the Federal Reserve, even as Chair Jerome Powell faced increasing political pressure from Donald Trump to lower interest rates more aggressively.“However, the surge in energy prices has altered this trajectory, reinforcing upside risks to inflation at a time when underlying price pressures were already proving persistent. Furthermore, consensus forecasts for inflation for this year have increased significantly, from 2.6% in February before the conflict to around 3.3% in recent estimates, signalling a renewed phase of price pressures,” QNB stated.As inflation has moved further away from target, markets have repriced the policy path accordingly, shifting from anticipating rate cuts to pricing a prolonged period of restrictive policy, with a high probability now assigned to tightening. In this context, a move towards rate increases could once again face political resistance, adding complexity to the policy outlook, QNB stated.“Second, artificial intelligence (AI) introduces a new layer of complexity to the macroeconomic outlook under the new leadership. Warsh has emphasised that technological advances could exert downward pressure on prices by boosting productivity and lowering unit labour costs.“In principle, stronger productivity growth could allow the economy to expand without generating inflationary pressures, allowing for lower policy interest rates. At the same time, the impact of these technologies on employment remains uncertain, as automation may both displace certain jobs and create new sources of labour demand,” QNB stated.QNB also stated, “Thus, a key challenge lies in assessing the magnitude and timing of these effects. Moreover, there is no clear consensus within the Federal Reserve on the extent to which AI-driven productivity gains will translate into sustained disinflation, with some policymakers already expressing skepticism about the near-term impact of these forces. As a result, the uncertain and potentially uneven consequences of technological change add further difficulty to the calibration of monetary policy.”According to QNB’s third point, the size and role of the Federal Reserve’s balance sheet represent another key challenge under the leadership of Kevin Warsh. The Fed’s balance sheet expanded significantly over the past decade as a result of large-scale asset purchases implemented in response to the Global Financial Crisis and the Covid-19 pandemic, with holdings concentrated in US Treasuries and mortgage-backed securities. Warsh has previously argued in favour of a faster reduction of the balance sheet, highlighting concerns that its elevated size distorts financial markets and encourages excessive risk-taking, QNB stated.“However, such an approach faces resistance within the Federal Reserve. Concerns over market stability remain central, as a faster pace of balance sheet reduction could lead to volatility in bond markets and disruptions in funding conditions. Additionally, the financial system has adapted, raising the risk that a rapid withdrawal of liquidity could impair market functioning.“As a result, while balance sheet normalisation remains ongoing, the pace and extent of further reductions are likely to remain subject to debate and differing views within the Federal Reserve,” QNB stated.QNB added: “All in all, the outlook for US monetary policy has become more complex, as the new leadership faces renewed inflationary pressures, evolving structural forces, and debates around the appropriate policy framework.“Reflecting these dynamics, market expectations for policy rates have shifted towards a scenario of prolonged restrictiveness, with a likely tightening of 25 basis points by the end of the year, which would raise the benchmark policy rate to 4.00%.”