We perform a numerical investigation of the field evolution in the sup
ersymmetric inflationary model based on radiative corrections. Supergr
avity corrections are also included. We find that, out of all the exam
ined initial data, only about 10% give an adequate amount of inflation
and can be considered as ''natural.'' Moreover, these successful init
ial conditions appear scattered and more or less isolated. [S0556-2821
(97)02820-8].