Shaheen Bhikhu and Thomas Viegas
Central banks reply to inflation by setting rates of interest so as to obtain home value stability. Often, financial shocks are international in nature and so financial coverage can transfer in tandem the world over. However how frequent have directional modifications in financial coverage been the world over over current a long time?
To reply this, we developed a financial coverage diffusion index (MPDI) as an instance 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/under 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, reminiscent of asset purchases.
Chart 1: International financial coverage diffusion index (MPDI)

The worldwide MPDI highlights two intervals of broad coverage easing over current a long time (Chart 1). In 2009, a median of 25 out of 39 main central banks reduce charges every quarter in response to the International Monetary Disaster. In 2020, a broadly comparable proportion reduce charges to help development and inflation in response to Covid-19.
Extra lately, the MPDI underscores the breadth in coverage tightening towards elevated inflationary pressures. In 2022 Q2, just below 30 main central banks raised charges, the very best proportion because the Index started.
Chart 2 splits the MPDIs for superior and rising market economies. It exhibits that the correlation between them is decrease exterior of the intervals of world 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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