In the wake of globalisation, governments have started to see relative advantage in associating with other countries, and also possible negative consequences in staying outside preferential trade arrangements. Many times a decision to join an economic organisation is made because staying outside will be with time more costly. It can be assumed that countries that rely to a very high extent on special export sectors or export partners are hit relatively harder when they are forced to stay outside a free trade area or a customs union. For the exporter, this is because it might be difficult to find alternative markets to sell to or to restructure the country's export composition . Such countries are also very vulnerable to economic blackmailing because sanctions can be addressed to small but crucial sectors.