TC=(DQ×S)+(Q2×H)cap T cap C equals open paren the fraction with numerator cap D and denominator cap Q end-fraction cross cap S close paren plus open paren the fraction with numerator cap Q and denominator 2 end-fraction cross cap H close paren

If your professor allows a "cheat sheet," prioritize formulas for EOQ, Reorder Point (ROP), and standard deviation of demand.

But part (c) was the trap. He sketched a mental graph: Day 1: sell 20, order 24 (20 + 20% error). Day 2: sell 24, order 29. Day 3: sell 29, order 35. Within five days, the stand was ordering 35 cups for a market that never exceeded 30. Waste exploded. Prices would rise. The mother would cancel the salvage deal. Then the child would under-order, create shortages, and—just like 2008—a tiny tremor in demand would become a national shortage of powdered formula because distributors amplified the signal.

X=∑(xi×Vi)∑Vi,Y=∑(yi×Vi)∑Vicap X equals the fraction with numerator sum of open paren x sub i cross cap V sub i close paren and denominator sum of cap V sub i end-fraction comma space cap Y equals the fraction with numerator sum of open paren y sub i cross cap V sub i close paren and denominator sum of cap V sub i end-fraction

Use case studies from your textbook to explain how technology (like RFID ) impacts supply chain transparency.

"A fashion retailer buys winter coats for $80 each and sells them for $150. After January, leftover coats are sold to a discounter for $40 each. Demand is normally distributed with a mean of 1,000 and standard deviation of 200. What is the Critical Ratio (Cu/(Co+Cu)) and the optimal order quantity?"

If you are preparing for your upcoming midterm, do not just read the textbook. Success on requires muscle memory for the following five formulas:

The bullwhip effect is primarily caused by: A) Stable downstream demand B) Demand signal processing and order batching C) Short lead times D) Perfect information sharing

The best way to prepare for a supply chain management midterm is to stop thinking like a student and start thinking like a supply chain manager. Every question—whether about EOQ formulas or the bullwhip effect—is ultimately about balancing conflicting goals: cost vs. speed, efficiency vs. resilience, forecast accuracy vs. responsiveness.

This spatial analysis method finds a central location for a single distribution center that minimizes total transportation costs based on distances and volume.

The cash-to-cash cycle = Inventory Days + Receivables Days – Payables Days. It measures the time between paying suppliers for raw materials and receiving cash from customers. A shorter cycle is better.