What was the most important economic activity of the UAE in the 15th century?

The most important activity of the UAE in the 15th century was the pearling industry. The country essentially lived off selling pearls in order to obtain currency to buy essential goods that could not be grown in the desert climate.

The most important trading partner was Portugal. The Portuguese distributed the pearls to other areas, specially in Asia.

explanation:

i think it is in quadrant 4.

the five year plans were part of a command economy. there was little choice in what would be emphasized for the current 5 year period.

the answer to democracy or totalitarianism is a bit harder. in stalin's time, russia was totalitarian. now that's not entirely true. putin has moved towards at least the boundary.