Journal of Statistical Physics, Vol. 38, Nos. 1/2, 1985. p. 89-95.
A review of some developments in localization effects on conductivity and magnetoconductivity is given. The determination of inelastic scattering rates for electrons in thin disordered metallic films is emphasized. In two-dimensional disordered superconductors above T_c, the superconducting fluctuations play an essential role. Recent work on the interplay of localization and superconducting fluctuation effects in determining the magnetoconductivity and the inelastic rate is described.