An Intelligent Algorithm of Bi-level Programming Model for Three-Stage Supply Chain

In this paper, we established the optimal strategy model and compiled the hybrid intelligent algorithm to solve this model, using the fuzzy random simulation and enumeration method to find out manufacturer's optimal order quantity, optimal production and optimal R&D investment; supplier's optimal production, optimal participation rates as well as the corresponding profits; retailer's optimal order quantity and the corresponding profit. We get conclusions that when manufacturer and supplier collaboratively research and develop as well as give quantity discounts for retailer, the production volume of supplier and manufacturer has basically reached the upper limit.