  This paper study the evolution of the universe filled with a neutral mass
dimension one fermionic field, sometimes called Elko. The numerical analysis of
the coupled system of equations furnish a scale factor growth and energy
density evolution that correctly reproduces the inflationary phase of the
universe. After that, supposing a mechanism of energy transference to ordinary
matter, the initial conditions generated after inflation drives the radiation
dominated phase and also the subsequent dark matter evolution, since the Elko
field is a good dark matter candidate. The energy density of the field at the
end of inflation, at the end of radiation phase and for present time are in
agreement to the standard model estimates. The analysis was performed with a
potential containing a quadratic mass term plus a quartic self-interaction
term, which follows naturally from the theory of mass dimension one fermions.
It is interesting to notice that inflation occurs when the field makes a kind
of transition around the Planck mass scale. The number of e-foldings during
inflation was found to be strongly dependent on the initial conditions of the
Elko field, as occurs in chaotic inflationary models. An upper mass limit for
Elko field has been obtained as $m<10^9$GeV. A possible interpretation of both
inflationary phase and recent cosmic acceleration as a consequence of a kind of
Pauli exclusion principle is presented at the end.
