1. The Treaty of Paris in 1763 caused that the French Empire lost its possessions in America. Spain took advantage of this and took possesion over it.
2. During the Spanish Domain, French-Speaker dwellers of Nova Scotia and New Brunswick in the actual Canada, refugeed in Lousiana after they were expelled by English invaders. This caused the population of Louisiana to grow and to be more multi-linguistic and multi-ethnic.
3. Between 1778-1783, colonists from the Canary Islands settled in Louisiana and also contributed to the demographic growth of Lousiana. This new colonists expanded the agricultural frontier and the variety of ethnical groups.
I don't think anyone will answer this but just devote one paragraph to talking about how supply and demand dictate prices, and another paragraph to how international trade fuels economic growth.