SONIA: steady as she goes

Joanna McLafferty, Kirstine McMillan and Joseph Smart

On 7 May 2024 the SONIA rate, the UK’s risk-free reference rate, printed at exactly 5.2000% and has remained there to the end of July 2024 (the time of writing). Flatlining of SONIA is not a phenomenon we see often. Prior to this, over the past six years SONIA had been ‘flat’ for only four consecutive days, on two occasions. So how is it possible for the SONIA calculation methodology to create such a flat rate? What is happening in the underlying market? And most importantly… does the lack of volatility indicate an issue? We argue this should not cause concern since flatlining is explained by the calculation mechanics and behavioural dynamics in the market.

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Central bank balance sheet policies and the market for reserves

Michael Kumhof and Mauricio Salgado-Moreno

While ‘unconventional’ balance-sheet policies like quantitative easing (QE) and quantitative tightening (QT) appear to have been successful, it is difficult to separate their macroeconomic and financial stability implications from those of other polices. Hence, in a recent paper, we develop a theoretical framework, focusing on the central bank’s liabilities, that sheds light on these implications. The key model feature is the inclusion of a detailed financial system with both heterogeneous banks and non-bank financial institutions that allows us to identify the transmission of QE/QT policies. Our framework provides guidance to policymakers interested in using new combinations of balance sheet and interest rate policies by highlighting the relevance of the interbank market and financial frictions in the transmission of balance sheet policies.

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Caring for the ‘future’

David Glanville and Arif Merali

Short term interest rate (STIR) futures are the bedrock of interest rate markets, used to price expectations of central bank policy rates and other UK rate derivative markets such as swaps and options (see Figure 1). They are key for the transmission of monetary policy and provide an avenue for interest rate risk hedging which is important for financial stability. Financial market liquidity usually worsens when volatility rises, however liquidity in the UK’s STIR futures during 2022 was especially poor. Liquidity in some metrics such as open interest and volumes has since improved as volatility has reduced, however our extensive market intelligence conversations suggest that many still believe there is further to go when looking ‘under-the-bonnet’ at another key metric, market depth. Volatility continues to play a role, but a reversion to publishing key data releases within market hours may help to build liquidity further.

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Monetary policy in a gas-TANK

Jenny Chan, Sebastian Diz and Derrick Kanngiesser

In recent years, increases in global energy prices have posed significant challenges for net energy importers such as the UK or the euro area. In addition to the inflationary impact, increases in the relative price of energy imply a decline in real incomes for the energy importers. In this blog post, we introduce a macroeconomic model that captures the direct adverse effects on aggregate demand caused by energy price shocks (a notion that resonates with policymakers’ concerns, ie Schnabel (2022), Broadbent (2022), Tenreyro (2022), Lane (2022)). We show how the transmission of energy price shocks differs from other supply shocks, thereby contributing to a better understanding and more effective mitigation of the disruptions caused by energy price shocks.

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Forecast accuracy and efficiency at the Bank of England – and how forecast errors can be leveraged to do better

Derrick Kanngiesser and Tim Willems

This post describes a systematic way for central banks to employ past forecasts (and associated errors) with the aim of learning more about the structure and functioning of the economy, ultimately to enable a better setting of monetary policy going forward. Results suggest that the Monetary Policy Committee’s (MPC’s) inflation forecast has tended to underestimate pass-through from wage growth to inflation, while also underestimating the longer-term disinflationary impact of higher unemployment. Regarding the effects of monetary policy, our findings suggest that transmission through inflation expectations has played a bigger role than attributed to it in the forecast.

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Using sectoral data to estimate the trend in aggregate wage growth

Tomas Key

Nominal wage growth has increased markedly in the UK in recent years, reaching levels that haven’t been seen for more than 20 years. Although growth has moderated a little in recent months, it remains significantly above its pre-pandemic level. An assessment of whether this strong rate of wage growth will persist is a key input to the monetary policy decision, given the important link between the cost of labour and firms’ pricing decisions. In this post, I will outline a new measure of the trend – or underlying – rate of wage growth which is estimated using data from many different sectors of the economy and which can help with this assessment.

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Quantifying the macroeconomic impact of geopolitical risk

Julian Reynolds

Policymakers and market participants consistently cite geopolitical developments as a key risk to the global economy and financial system. But how can one quantify the potential macroeconomic effects of these developments? Applying local projections to a popular metric of geopolitical risk, I show that geopolitical risk weighs on GDP in the central case and increases the severity of adverse outcomes. This impact appears much larger in emerging market economies (EMEs) than advanced economies (AEs). Geopolitical risk also pushes up inflation in both central case and adverse outcomes, implying that macroeconomic policymakers have to trade-off stabilising output versus inflation. Finally, I show that geopolitical risk may transmit to output and inflation via trade and uncertainty channels.

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To the lower bound and back: measuring UK monetary conditions

Natalie Burr, Julian Reynolds and Mike Joyce

Monetary policymakers have a number of tools they can use to influence monetary conditions, in order to maintain price stability. While central banks typically favour short-term policy rates as their primary instrument, when policy rates remained constrained at near-zero levels following the global financial crisis (GFC), many central banks – including the Bank of England – turned to unconventional policies to further ease monetary conditions. How can the combined effect of these policies be measured? This post presents one possible metric – a Monetary Conditions Index – that uses a data-driven approach to summarise information from a range of variables related to the conduct of UK monetary policy. We discuss what this implies about how UK monetary conditions have evolved since the GFC.

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The transmission channels of geopolitical risk

Samuel Smith and Marco Pinchetti

Recent events in the Middle East, as well as Russia’s invasion of Ukraine, have sparked renewed interest in the consequences of geopolitical tensions for global economic developments. In this post, we argue that geopolitical risk (GPR) can transmit via two separate and intrinsically different channels: (i) a deflationary macro channel, and (ii) an inflationary energy channel. We then use a Bayesian vector autoregression (BVAR) framework to evaluate these channels empirically. Our estimates suggest that GPR shocks can place downward or upward pressure on advanced economy price levels depending on which of the two channels the shock propagates through.

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Markup matters: monetary policy works through aspirations

Tim Willems and Rick van der Ploeg

Since the post-Covid rise in inflation has been accompanied by strong wage growth, interactions between wage and price-setters, each wishing to attain a certain markup, have regained prominence. In our recently published Staff Working Paper, we ask how monetary policy should be conducted amid, what has been referred to as, a ‘battle of the markups’. We find that countercyclicality in aspired price markups (‘sellers’ inflation’) calls for more dovish monetary policy. Empirically, we however find markups to be procyclical for most countries, in which case tighter monetary policy is the appropriate response to above-target inflation.

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