This paper analyzes the coordination of return policy for single-period supply chain consisting of one supplier and one retailer,the latter is constrained by downside risk.We model the decision problems with ne- wsboy model and then analytically derive the optimal policies for the retailer.For the optimal decisions of sup- plier,we use the numerical method to analyze the effect of retailer downside risk on the decision variables and the profit of the supplier.Compared with the case of no risk co...