A call for the protection-and-indemnity (P&I) clubs to rebalance premium payment schedules to put more emphasis on deferred calls is being made by the big Aon insurance broking group.

Aon wants the clubs to help the cash flow of shipowner clients at a time of low freight earnings by scaling back upfront increases and rediscovering the merits of deferred calls.

The broker argues that, with a collective free reserve of more than $4bn, the clubs should recognise they are in a better financial state than many of their members.

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