  The top-quark Yukawa coupling is too large to permit radiative electroweak
symmetry breaking to occur for small values of y, the Higgs self-coupling, to
leading-logarithm order. However, a large y solution leading to a viable Higgs
mass of approximately 220 GeV does exist, and differs from conventional
symmetry breaking by an approximately five-fold enhancement of the Higgs
self-coupling. This scenario for radiative symmetry breaking is reviewed, and
the order-by-order perturbative stability of this scenario is studied within
the scalar field theory projection of the standard model in which the Higgs
self-coupling y represents the dominant standard-model coupling.
