As sugar prices have fallen (one of the Island's main exports for decades), the large estates - the Domaines, have invested in tourism.
For a long time, the main export market for many French natural wines was Japan.
For many years, Britain was the main export market for Armagnac, but Russia has recently moved in and taken up the top spot.
The Americans have vetoed the Iranian proposal, favoured by oil companies for reasons of economy, that the main export pipeline for Caspian oil should run across Iran to the Gulf.
George Osborne, the chancellor, warned the House of Commons last week that the recovery in the world economy would "take longer and be harder than had been hoped", and blamed "instability across the world and in our main export markets" for the deterioration in Britain's prospects.
In the past couple of years, oil has become Sudan's main export, paying for much increased military spending and a boom in the capital, Khartoum, where luxury-car importers do a cracking trade.Worn down by a decade of sanctions, Sudan is seeking removal from America's list of states that sponsor terrorism.
Brazil has become the main export base for cocaine from Colombia and other Latin American countries.
Nitrous oxide emissions were negligible; thus, the main export path for N2O was as gas dissolved in the effluent.
Our model suggests that over timescales of a few months, vertical exchanges between the upper fresh layer and the underlying saltier layer appear to be the main export pathway for the freshwater.
The recent spike in the oil price will give a further boost to Mexico, a major oil exporter (although it will also harm the United States, the country's main export market).The forecast for the drug war, meanwhile, doesn't look especially promising.
