Decomposing changes in the functioning of the sterling repo market

Decomposing changes in the functioning of the sterling repo market BoE finds changes in gilt repo market functioning over the past five years have been driven by changes in the supply of repo market intermediation by dealers, rather than by changes end-user demand. The introduction of the UK leverage ratio may have reduced dealers’ ability to act as repo market intermediaries.

Here’s the abstract:

” We identify the degree to which changes in gilt repo market functioning have been driven by changes in the supply of — and the demand for — market intermediation. To do so, we use a structural vector auto regression (SVAR) model with sign and zero restrictions. We find that changes in gilt repo market functioning over the past five years have been driven largely by changes in the supply of repo market intermediation by dealers, rather than by changes in the demand of end-users. Following the introduction of the UK leverage ratio, our model suggests that an increase in demand for repo by end-users results in a larger increase in the cost of repo transactions and a smaller increase in their volume. This effect is stronger in the case of transactions that are not nettable via central counterparties. These findings are consistent with the notion that the leverage ratio may reduce dealers’ ability and/or willingness to act as repo market intermediaries. This may have implications for the resilience of repo markets in future periods of stress. “

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