By these means to make an effective contribution to better international relations.

A guest worker program is the most effective contribution we can make to improving the lives of the world's working poor.

But it is possible, though very rare, for an alert dummy to make an effective contribution to the outcome of a deal.

They made effective contribution to the country economic planning and development.

It is essential that manufacturers make an effective financial contribution to the collection system for their product(s).

Indeed, is the European Community powerful enough to make an effective contribution here?

I really feel that, if this European project sees the light of day, Parliament will have made an effective contribution.

I believe that the adopted report makes an effective contribution to these objectives.

Do you see it as an effective contribution to efforts at finding a solution to the violence?

This measure should make an effective contribution to market regulation.