Shaheen Bhikhu and Thomas Viegas
Central banks reply to inflation by setting rates of interest with a purpose to obtain home worth stability. Sometimes, financial shocks are international in nature and so financial coverage can transfer in tandem internationally. However how widespread have directional modifications in financial coverage been internationally over latest many years?
To reply this, we developed a financial coverage diffusion index (MPDI) as an example the breadth of financial coverage modifications. The diffusion index is calculated as = 1* per cent of central banks growing rates of interest + 0.5* per cent leaving charges unchanged + 0* per cent lowering charges.
A studying above/beneath 50 signifies that extra central banks have elevated/lowered rates of interest relative to the earlier quarter, than the reverse. The MPDI doesn’t embody modifications in different financial coverage instruments, similar to asset purchases.
Chart 1: International financial coverage diffusion index (MPDI)

The worldwide MPDI highlights two intervals of broad coverage easing over latest many years (Chart 1). In 2009, a mean of 25 out of 39 main central banks minimize charges every quarter in response to the International Monetary Disaster. In 2020, a broadly related proportion minimize charges to assist progress and inflation in response to Covid-19.
Extra just lately, the MPDI underscores the breadth in coverage tightening towards elevated inflationary pressures. In 2022 Q2, slightly below 30 main central banks raised charges, the best proportion because the Index started.
Chart 2 splits the MPDIs for superior and rising market economies. It reveals that the correlation between them is decrease exterior of the intervals of worldwide macroeconomic shocks.
Chart 2: MPDI for superior economies and rising market economies

Shaheen Bhikhu works within the Financial institution’s Worldwide Surveillance Division and Thomas Viegas works within the Financial institution’s Market Intelligence and Evaluation Division.
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