Strong dynamics at the Planck scale as a solution to the cosmological
  moduli problem
  We argue that strong dynamics at the Planck scale can solve the cosmological
moduli problem. We discuss its implications for inflation models, and find that
a certain type of multi-field inflation model is required for this mechanism to
work, since otherwise it would lead to the serious eta-problem. Combined with
the inflaton-induced gravitino problem, we show that a chaotic inflation with a
discrete symmetry naturally avoids both problems. Interestingly, the focus
point supersymmetry is predicted when this mechanism is applied to the Polonyi
model.
