xmlns:atom="http://www.w3.org/2005/Atom" xmlns:atom="http://www.w3.org/2005/Atom"
where:
each of the sums cover all the geographical regions set out in paragraph 8;
V(prem,r,s) denotes the volume measure for premium risk of the segment s and the region r;
V(res,r,s) denotes volume measure for reserve risk of the segment s and the region r.