On 19 December 2008, the Economic Community of West African States (ECOWAS) adopted the Supplementary Act A/SA.1/12/08 Adopting Community Rules and the Modalities of their Application within ECOWAS. It prohibits the abuse of a dominant market position by any enterprise within the ECOWAS Common Market. This includes practices such as imposing unfair purchase or selling prices, limiting production or technical development to the prejudice of consumers, and applying dissimilar conditions to equivalent transactions, thereby placing competitors at a disadvantage.
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