Take the following as truth: Neither Martinique nor Guadeloupe enjoy duty-free status (apart from the duty-free shops at the airports), but almost everything from France is sold at mainland French prices, well below what the items would cost in North America.
Then the following statement: "Everything sold in France is very expensive, and it is cheaper to buy products in Martinique and Guadeloupe despite their lack of duty-free status. " is true, false, or inconclusive?