Abstract.We obtain a set of sufficient conditions under which all positive solutions of the nonlinear delay difference equation x"+l = x"f(xn_k), n = 0,1,2,..., are attracted to the positive equilibrium of the equation. Our result applies, for example, to the delay logistic model JVI+i = aN¡/ (\ +ßNt_k) and to the delay difference equation xn+i = x"er^~x"-k'1 .