  The extrapolation of small-cluster exact-diagonalization calculations is used
to examine the influence of correlated hopping on valence and metal-insulator
transitions in the one-dimensional Falicov-Kimball model. It is shown that the
ground-state phase diagram as well as the picture of valence and
metal-insulator transitions found for the conventional Falicov-Kimball model
(without correlated hopping) are strongly changed when the correlated hopping
term is added. The effect of correlated hopping is so strong that it can induce
the insulator-metal transition, even in the half-filled band case.
