PONTIFICIAE ACADEMIAE SCIENTIARVM SCRIPTA VARIA - 28

objectives it is designed to serve, and the objectives are likely
to be modified in the light of calculations made with the model.
Again, the policy is bound to be affected by the structure of
the existing control mechanism, while this is likely to be modified
 in the interests of the policy. And so on. In the next
chapter we shall examine these connections in greater detail.

+] Stone - pag. 6