 One outcome of the war was to reduce the powers of Castile and Aragon and create a Spanish state similar to the centralised French system.This allowed Alberoni to copy the economic reforms of Colbert and he passed a series of decrees aimed at restoring the Spanish economy.These abolished internal custom-houses, promoted trade with the Americas, instituted a regular mail service to the colonies and reorganised state finances along lines established by the French economist Jean Orry.