Which goods are traded between northern and southern Nigeria?

Domestic trade in Nigeria is characterized by a north-south exchange of staple foods between different ecological zones. This internal trade flow functions as follows:

• From the south to the north: Southern states supply cassava, plantains, kola nuts, and various fruits.1
• From the north to the south: Northern states supply livestock, onions, and beans.1
• Central region: Yams produced in the central region are traded in both southern and far northern cities.1

These food items, along with various manufactured goods, are primarily sold in open market stalls, small neighborhood shops, and on the streets. This north-south trade pattern is supported by a road network that has historically facilitated the movement of goods from the interior to the southern seaports.12