Please explain the difference between: -"statutory ... restrictions on what the insurer may invest", and -"regulatory constraints, for example, those imposed by Lloyd's and the Financial Services Authority"
Hmmmm, I agree with you the Core Reading does seem rather repetitive here. I'd say no difference at all!
Statutory constraints have the force of law, whereas regulatory constraints are set by a regulator and only have the force of whatever penalty the regulator can impose. Certainly in the UK the difference can be hazy because some legislation is written to give regulatory regimes statutory force.