SEMAINE D ETUDE SUR LE ROLE DE L’ANALYSE ECONOMETRIQUE ETC. 727

a) National Cabital €

National capital is equal to the global value C of all reprojucible
 goods, whether production goods (factory buildings,
>quipment, semi-finished products, stocks), or durable consumer
soods (dwelling houses, durable household goods, motor vehi
cles, etc.).
This definition is of course the definition which is normally
ased by statisticians in work on the estimation of national
wealth, so that

116-1)

hx

b) Consumed National Income

In the present theory, consumed national income 1s -jual
to the global value of all final services. If, as is or course
necessary, consumer durables are included in capital C, the
value of the services rendered by them, », must be included
in the calculation of Rc. The income arising from a capital
goods is given by

116-2)

vie) —

alt,

Ue,

where a is amortization, v the value of of the good at instant £,
and 7 the instantaneous rate of interest (2). This relation sig

(') Subject to a number of secondary differences which will be discussec
ater (§ 334, table on page (115).
(?) ALLais, Traité d Economie Pure (Treatise on pure economics) (1943)
362. relation 2. and Economy and Interest (10947), p. 70, relation ?

1.1] Alluis - pag. 31