The population of the territory of Lubao and Kabinda, whose main economic activity is agriculture, has initiated weekly markets in the different villages in order to facilitate exchanges with the consumption centers, the currency being the exchange standard accepted by all. The Barter. These markets play very important roles in the socio-economic development of this region, thanks to the income from them, the population has easy access to the various structures that the State has established in this hinterland (schools, health centers, cellular antennas). We can observe an opening up of the areas and an intense circulation of the population in search of the market, a change of mentality, including the consideration of one's personality, and the reduction of the socio-economic disparity.