QUARK MODELS OF DUALITY IN ELECTRON AND NEUTRINO SCATTERING
Results of recent analyses of electromagnetic structure functions in the resonance region suggest that duality-violating higher twists are small above Q2 ~ 1 GeV2. We analyze the systematics of local duality within a quark model framework for various modes of spin-flavor symmetry breaking. On the basis of these models we discuss expectations for the workings of duality in neutrino scattering.