Djóko is a Bixînke word that means band or tribe, and refers to a prominent structure in Chalmean society. A djóko is a seminomadic group of people composed of some 3 to 9 households under the authority of a group of the djóko's eldest members. Djóko are mainly economic institutions, and many of them specialize in a trade. A lechê djóko, or agricultural tribe, for example, spends a couple of decades in each place and then travel, both to seek more rested land and to follow high grain prices. Masonry djóko spend roughly a year in each place, building walls or other improvements in exchange for food and other services. Djóko dedicated to pottery and trade are continually on the road, rarely staying in one place for more than three months. Trade djóko in particular tend to be rather small.

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