... Substituting the above definition of h(z,α,g),we obtain (12.4).August 18, 2007 Time: 11:06am chapter 13. texUtilitarian Pricing of Annuities •1 13 13. 3 Second-best Optimum Pricing of Annuities Governments ... fundamentalequation of stable population theory: ∞0e−gzF (z,α)b(z) dz = 1, (12.4)where b(z) is the age-specific birthrate (fertility) function. The magnitude of g depends implicitly on the form of the ... andefficiency (1/εh) considerations. The implication of ( 13. 14) for the optimum pricing of annuities depends on the welfare function, W, and on the joint distribution of incomes, (y1, ,yH), and...