A new method for obtaining sensitivity information for parametric
vector optimization problems (VOP)v is presented,
where the parameters in the objective functions and anywhere in
the constraints. This method depends on using differential
equations technique for solving multiobjective nonlinear
programing problems which is very effective in finding many local
Pareto optimal solutions. The behavior of the local solutions for
slight perturbation of the parameters in the neighborhood of
their chosen initial values is presented by using the technique
of trajectory continuation. Finally some examples are given to
show the efficiency of the proposed method.