Monetary Transmission Mechanism

Sofia Carollo and Natalie Burr

While monetary policy sets short-term policy rates, households and firms borrow at varying time horizons. How a policy decision reshapes the whole yield curve therefore matters. We trace the reactions of yields in narrow windows around UK monetary policy announcements across two dimensions: a ‘level’ surprise that shifts the entire curve and a ‘slope’ surprise that changes its steepness. We find that a level surprise affects CPI inflation more than a slope surprise does; this result is difficult to recover from surprises that conflate the two dimensions. So, the policy rate tells only part of the story: two curves considered equivalent from a stance perspective can lead to different inflation outcomes. Policymakers must be attuned to these differing effects.

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Iryna Kaminska and Haroon Mumtaz

Since 2009, when policy rates reached their effective lower bound, quantitative easing (QE) has become an important instrument of central bank monetary policy. It is aimed to work via long-term yields. The literature confirms that QE helped lower long-term yields. But the yields have two components – expectations and term premia – and open questions remain: does QE reduce yields via expected rates or term premia? And which channel is more efficient in stimulating the economy? In our research paper, we find evidence that QE often worked through signalling and term-premia effects simultaneously. But the two main QE channels are transmitted to financial markets and the real-economy in different ways, and only signalling is found to have ultimately affected inflation significantly.

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Tag: Monetary Transmission Mechanism

Monetary policy transmission: it’s all in the curve

Monetary policy transmission during QE times: role of expectations and premia channels