332 
PONTIFICIAE ACADEMIAE SCIENTIARVM SCRIPTA VARIA - 28 
In the present state of knowledge, it is difficult, if not im- 
possible, to assign a particular form to the ¢,(8) functions. At 
the same time, the analysis in the present study provides nu- 
merous reasons for believing that the shape of function ¢(6) 
should not differ too greatly from an exponential form. 
4) Global production P* at any given moment consists 
of the total of consumed income Re and investment I: 
(333-2) 
P*=R~+1 
But on the cost side, 
(333-3) 
P*¥*=R,+ +:C 
where primary income R, includes the wage bill and rent from 
ownership of property, iC represents the interest charged on 
the global value of the existing reproducible capital, and € 
represents the effective amortisation of reproducible capital 
defined by the relation 
(333-4) 
dt 
{| 
Thus, we have 
333-5) P*=R~+I=R,+ A +iC 
4 
(") See ArLLars, Les Fondements Comptables de la Macroéconomique 
The Accountine Bases of Macroeconomics) 
11] Allais - pag. 136