A two-phase constrained Chaotic Bee Colony approach towards managing coopetition in supply chain

Competitive models give superiority to maximize only the buyer´s profit which does not satisfy all members in supply chain whereas Coordinative models give superiority to whole supply chain over buyer´s profit. In this paper, we have considered coopetition in supply chain. The competition in one buyer - multiple suppliers system for the supplier selection process has been considered by applying mixed-integer nonlinear programming in first phase. On the other hand, the total cost of the supply chain is minimized rather than only the buyer´s cost to implement cooperation. Artificial Bee Colony and Chaotic Bee Colony are used separately in the second phase as optimization technique. Finally, the proposed model is illustrated by a numerical example from literature. A better result is found for buyer´s cost by applying the proposed two-phase method while it´s giving comparable result for total supply chain cost.