526-16) 
44 
PONTIFICIAE ACADEMIAE SCIENTIARVM SCRIPTA VARIA - 28 
R, e% (2-p) 
Rou 1-7, (i-p) 
Fa 
These relations are more convenient for use where yc is 
given. 
When w=o0, this model reduces to the exponential model 
of the main text and when w =1, it reduces to the para-exponen- 
tial model examined in the preceding section (with n>2). 
The case n=2 is particularly important. In this case, the 
Taylor expansion of B(0)e"" can be limited to the first two 
terms. 
The Form of (0) 
327. 
©(0) is maximum for 6 =0,, such that 
0 
(527-1) =r [ral 
T [1+T (i-p)] [2 22 [Tip n-2 
#3) a) | 
[In all cases we have 
Te 7 
2 
0m 
T 
: FAT] 
() Again we find the general relation (228-14) for E=1. 
IT] Allais - pag. 248