Having an international relationship with other countries who have a good economy will be a big impact into the economic growth of both sides because they are sharing the same path on how they will improve their country. If a 2 largest country who have a good and wealthy economy join forces or having a relationship then maybe they become the world's top country in terms of economic growth. Having a internal relationship between a down and successful country will help them to carry the down economy of the both parties, this is how world economy runs.