RBC charge for bond investment in other non-insurance subsidiaries.

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RBC charge for bond investment in other non-insurance subsidiaries.

The key idea is that the RBC charge for bond investments in other non-insurance subsidiaries uses a ratio to reflect impairment relative to the regulatory value. Specifically, the charge is 0.225 times the ratio of the bond’s book value to its adjusted carrying value. This setup means the charge increases if the book value exceeds the adjusted carrying value (impairment) and decreases if the adjusted carrying value exceeds the book value. When there’s no impairment and both values align, the ratio is 1 and the charge is the base 0.225 times that 1. For example, if the bond’s book value is 100 and the adjusted carrying value is 100, the charge is 0.225 × 1 = 0.225 (per unit of value). If impairment reduces the adjusted carrying value to 90, the ratio becomes 100/90 ≈ 1.111, and the charge becomes 0.225 × 1.111 ≈ 0.25. If the adjusted carrying value were higher, say 110, the ratio would be 100/110 ≈ 0.909, and the charge would be about 0.2045. This form captures how impairment affects the capital requirement, whereas other options either ignore the ratio between book and adjusted carrying value or use a fixed amount that doesn’t account for relative valuation shifts.

The key idea is that the RBC charge for bond investments in other non-insurance subsidiaries uses a ratio to reflect impairment relative to the regulatory value. Specifically, the charge is 0.225 times the ratio of the bond’s book value to its adjusted carrying value. This setup means the charge increases if the book value exceeds the adjusted carrying value (impairment) and decreases if the adjusted carrying value exceeds the book value. When there’s no impairment and both values align, the ratio is 1 and the charge is the base 0.225 times that 1.

For example, if the bond’s book value is 100 and the adjusted carrying value is 100, the charge is 0.225 × 1 = 0.225 (per unit of value). If impairment reduces the adjusted carrying value to 90, the ratio becomes 100/90 ≈ 1.111, and the charge becomes 0.225 × 1.111 ≈ 0.25. If the adjusted carrying value were higher, say 110, the ratio would be 100/110 ≈ 0.909, and the charge would be about 0.2045.

This form captures how impairment affects the capital requirement, whereas other options either ignore the ratio between book and adjusted carrying value or use a fixed amount that doesn’t account for relative valuation shifts.

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