This article examines Agricultural Trade and Food Security in Eastern Africa: Regional Markets and Price Transmission: An Empirical Investigation with a focused emphasis on Algeria within the field of Business. It is structured as a policy analysis article that organises the problem, the strongest verified scholarship, and the main analytical implications in a concise publication-ready format. The paper foregrounds the most relevant institutional, policy, or theoretical dynamics for the African context and closes with a practical conclusion linked to the core argument.