In the operations management literature, the financial risk in an inventory model is usually assumed to be captured by the (constant) weighted average cost of capital (WACC) of the firm. This assumption is, at best, an approximation, since this cost depends on the risk of the cash flows, which,...

The supply chain literature has devoted much attention to studying how the variability of orders propagates upstream. We explore how this insight extends to the variability of payments to suppliers and its impact on how risk is generated and propagates upstream. To do so, we model the financial...