Hossein Reyhani Yamchi is a PhD student at La Trobe Business School, La Trobe University. His research focuses on optimisation and modelling of agricultural supply chains, with particular interest in sustainable supply chain design, trade policy, and strategic decision-making. His previous work has involved developing mixed-integer linear programming (MILP) models and applying multi-objective optimisation approaches to evaluate economic, environmental, and social dimensions of agricultural supply chains. His current PhD research explores global agricultural supply chains under policy uncertainty, integrating optimisation and game-theoretic perspectives.