  In supersymmetric (SUSY) models the misalignment between fermion and sfermion
families introduces unsuppressed flavor-changing processes. Even if the mass
parameters are chosen to give no flavor violation, family dependent radiative
corrections make this adjustment not stable. In particular, due to the observed
large neutrino mixings and potentially large neutrino Yukawa couplings, sizable
lepton flavor violation (LFV) is expected. After introducing the basic
concepts, the framework and the main assumptions, we report on a recent study
of rare leptonic decays in a class of SUSY-GUT models with three
quasi-degenerate neutrinos. We show that LFV effects are likely visible in
forthcoming experiments.
