Demand chain Study Guide

📖 Core Concepts Demand Chain – Management of customer demand (instead of just product flow). It includes every process needed to understand, create, and stimulate demand. Value Chain (Demand Side) – The marketing, sales, and service activities that sit on the demand side of the firm’s value‑adding activities. Demand‑Driven vs. Forecast‑Push – Demand‑driven: material movement is triggered by actual customer orders. Forecast‑push: replenishment quantities are set from demand forecasts and safety stock. Bullwhip Effect – Forecast errors become larger as they move upstream, causing excess inventory and capacity strain. Segmentation – Splitting the market (or a firm) into distinct groups that may need separate products/marketing mixes; in finance, it creates responsibility centres with their own revenue & cost statements. Targeting – Allocation of a marketing budget (or other resources) to the segments that maximise overall value. Optimisation Modelling – Mathematical models that translate marketing plans into financial metrics (e.g., ROI, NPV) for board‑room decision‑making. --- 📌 Must Remember Demand chain = customer‑demand focus; supply chain = product‑logistics focus. Make‑to‑order / assemble‑to‑order are inherently demand‑driven. Make‑to‑stock can be demand‑driven only if replenishment replaces only what has been consumed downstream. Bullwhip = forecast error ↑ → cost ↑ & service ↓. In a demand‑driven supply chain, forecasts are used for capacity/financial planning, not for day‑to‑day replenishment. Optimisation links marketing actions to profitability, ROI, and NPV. --- 🔄 Key Processes Transforming a Supply Chain to a Demand Chain Deploy IT → real‑time demand data. Conduct cost & process analysis → identify where demand can drive logistics. Build cross‑functional teams (marketing ↔ supply‑chain). Demand‑Driven Replenishment Loop Customer order → trigger material movement → fulfill order → update demand data → repeat. Budget Segmentation → Targeting → Optimisation Segmentation: define responsibility centres (revenue/cost). Targeting: decide resource quantity for each centre to maximise value. Optimisation: run model → output budget allocation & expected financial impact. --- 🔍 Key Comparisons Demand‑Driven vs. Forecast‑Push Trigger: actual order vs. forecast. Inventory: low (just‑in‑time) vs. high (safety stock). Risk: stock‑outs vs. excess inventory. Make‑to‑Order vs. Make‑to‑Stock Production timing: after order vs. before order. Flexibility: high vs. low. Marketing‑Centric Segmentation vs. Finance‑Centric Segmentation Goal: customer insight vs. responsibility‑centre accounting. Metric: market share vs. revenue/cost per centre. --- ⚠️ Common Misunderstandings “All make‑to‑stock is forecast‑push.” – Not true; if replenishment replaces only downstream consumption, it can be demand‑driven. “Bullwhip only hurts the retailer.” – It propagates upstream, inflating costs for manufacturers and suppliers too. “Optimisation is only for finance.” – It translates marketing strategies into financial language, benefiting both functions. --- 🧠 Mental Models / Intuition “Demand = Pull, Forecast = Push.” Visualise a rope: a pull from the customer moves the rope (materials) forward; a push is a pre‑set length you keep pulling regardless of where the customer is. “Segmentation as “mini‑companies” – Treat each segment like its own profit‑center; ask, “If this were a separate firm, would it be profitable?” --- 🚩 Exceptions & Edge Cases Make‑to‑stock demand‑driven only when replenishment is exactly the quantity consumed downstream—rare in practice. Bullwhip mitigation works best when upstream partners share real‑time demand data; otherwise, even demand‑driven chains can suffer distortion. --- 📍 When to Use Which Use demand‑driven replenishment when order visibility is high (e.g., configurable products, B2B contracts). Use forecast‑push for low‑visibility items where holding some safety stock is cheaper than frequent order processing. Apply optimisation modelling when you need to justify marketing spend to finance or compare alternative budget allocations. --- 👀 Patterns to Recognize “Order → Replenishment → Forecast” pattern indicates a forecast‑push approach. “Order → Immediate Production/Shipment” pattern signals a demand‑driven chain. Budget discussions that focus on “ROI, NPV, cash‑flow” usually point to an optimisation problem. --- 🗂️ Exam Traps Choosing “make‑to‑stock” as always demand‑driven – exam may present a make‑to‑stock example that is demand‑driven; check the replenishment rule. Assuming the bullwhip effect only occurs with poor forecasting – it can also arise from order batching, price promotions, or lead‑time variability. Confusing segmentation (marketing) with targeting – segmentation groups customers; targeting decides how much to invest in each group. ---