Coins, banknotes, medals, seals (numismatics) Neyman–Pearson problem Solvency II capital insurance capital requirement for premium risk collective risk model community structure complex networks conditional value-at-risk contagion deltaCoVaR equilibrium financial conglomerate financial markets general risk measure insurance sector interconnectedness mean-CVaR portfolio optimization minimum spanning trees—topological indicators optimal reinsurance reinsurance strategies risk minimization risk sharing systemic risk tail dependence welfare