BoE prudential regulator wrestles with early warning indicators calibration

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The Prudential Regulation Authority's (PRA) efforts to design early warning indicators (EWIs) to assess insurers' capital requirements have stalled amid difficulties in designing a suitable calibration.

The UK regulator has admitted its initial calibration "is not performing as expected", and that it is having trouble defining a simple EWI methodology that accurately reflects firms' solvency positions.

The PRA has requested more data from UK insurers involved in the internal model approval proce

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