What if BR (h→μμ)/BR(h→τ τ)≠ m² _μ/ m²_τ ?

Measurements of the Yukawa couplings of the recently discovered boson h to fermion pairs will provide a new arena for studying flavor physics. We analyze the lessons that can be learned by measuring the h decay rates into the charged lepton pairs, τ ⁺τ ^-, μ ⁺ μ ^- and τ ^± μ ^±. We demonstrate how this set of measurements can distinguish in principle between various classes of flavor models such as natural flavor conservation, minimal flavor violation, and Froggatt-Nielsen symmetry.