  We analyze the functional integral for quantum Conformal Gravity and show
that with the help of a Hubbard-Stratonovich transformation, the action can be
broken into a local quadratic-curvature theory coupled to a scalar field. A
one-loop effective action calculation reveals that strong fluctuations of the
metric field are capable of spontaneously generating a dimensionally transmuted
parameter which in the weak-field sector of the broken phase induces a
Starobinsky-type f(R)-model with a gravi-cosmological constant. A resulting
non-trivial relation between Starobinsky'sparameter and the cosmological
constant is highlighted and implications for cosmic inflation are briefly
discussed and compared with recent PLANCK and BICEP2 data.
