  We show that we can interpret the exact solution of the one-dimensional t-J
model in the limit of small J in terms of charge carriers with both exchange
(braid) and exclusion (Haldane) statistics with parameter 1/2. We discuss an
implementation of the same statistics in the two-dimensional t-J model,
emphasizing similarities and differences with respect to one dimension. In both
cases the exclusion statistics is a consequence of the no-double occupation
constraint. We argue that the application of this formalism to hole-doped high
Tc cuprates and the derived composite nature of the hole give a hint to grasp
many unusual properties of these materials.
