Physical Distribution

Physical distribution refers to all the activities needed to move a product efficiently from the manufacturer to the consumer. It is the engine room of marketing: you can have the best product, the right price, and perfect promotion — but if the physical distribution fails, the product isn’t on the shelf and the sale is lost.

The dual function: physical distribution is about moving (transportation) and keeping (warehousing) in equal measure.

flowchart LR
    MFR[Manufacturer] --> WH[Warehousing\nStorage]
    WH --> TR[Transportation\nMovement]
    TR --> DIST[Distributor /\nRetailer] --> CUST[Customer]

    WH -.->|Strategy| OWN[Owned Warehouse\nHigh volume\nconstant needs]
    WH -.->|Strategy| IND[Independent Rented\nFlexible\nThe Brick model]

    TR -.->|Mode| TK[Trucks\nShort-medium haul]
    TR -.->|Mode| RL[Rail\nBulk · Land]
    TR -.->|Mode| AIR[Air\nFast · Expensive]
    TR -.->|Mode| WAT[Water\nSlow · Cheap · Global]
    TR -.->|Mode| PP[Pipelines\nLiquids & Gases]
    TR -.->|Mode| DIG[Digital\nSoftware · Media]

How It Appears Per Course

ADMN 201

LO8 covers warehousing operations, transportation modes, Just-In-Time (JIT) distribution, and how physical distribution can open or close entire markets. The chapter frames physical distribution as a core marketing strategy, not just an operational detail.

Purpose

Three goals of physical distribution:

1. Make goods available when and where customers want them
2. Keep costs low (to preserve margins)
3. Provide services that satisfy customers

These three goals exist in constant tension. More availability = more inventory = higher cost. The goal is to find the efficient middle ground.

Warehousing Operations

Warehousing is the physical distribution operation concerned with the storage of goods. Managers must choose how to structure their storage capacity:

Owned Warehousing

• Used by companies with high, consistent volume — it makes financial sense to own the space
• Provides full control over storage conditions and inventory systems

Independent (Rented) Warehousing

• Used by companies with variable or seasonal demand
• Avoids paying for empty space during slow periods
• Example: The Brick (furniture retailer) rents space in independent warehouses as required. Demand spikes on “Moving Day” and during sales events; owned warehouses would sit empty during slow months.

Transportation Operations

Physical movement of products from suppliers to customers. The sources identify six specific modes:

Mode	Best For	Speed	Cost
Trucks	Short/medium haul, flexible routing	Medium	Medium
Railroads	Heavy bulk over land (coal, grain, cars)	Medium	Low-Medium
Planes (Air)	Time-sensitive, high-value goods	Fastest	Most expensive
Water Carriers	Large international bulk (ships, barges)	Slowest	Cheapest
Pipelines	Liquids and gases (oil, natural gas)	Continuous	Low
Digital Transmission	Software, media, data, financial services	Instant	Near-zero marginal cost

Digital transmission as “transportation”: we normally think of transport as wheels and wings, but the text explicitly classifies digital transmission as a distribution mode. For software, music, and financial services, the internet protocol is the “truck.” This changes the cost structure fundamentally — near-zero marginal cost per additional unit distributed.

Just-In-Time (JIT) Distribution

JIT is an inventory management and distribution system where products arrive exactly when needed, minimizing the need for large safety stock.

The Walmart / P&G Model

sequenceDiagram
    Customer->>Walmart Checkout: Purchases Tide detergent
    Walmart Checkout->>Inventory System: Barcode scan updates stock count
    Inventory System->>P&G / Distribution Hub: Automatic restocking signal sent
    P&G / Distribution Hub-->>Walmart Shelf: Replenishment shipped within ~2 days

Result: shelves stay stocked without Walmart holding massive warehouse inventory. Lower inventory costs → lower prices. This model bypasses traditional wholesalers, giving Walmart direct control over the supply chain.

Common misconception: JIT means “zero inventory.” Correction: JIT means lower inventory, because restocking is triggered faster. You still hold some stock; you just hold less of it at any given moment.

Innovation in Physical Distribution

Physical distribution doesn’t just support markets — it can create them.

The Seafood Case (Aqualife A/S + Maersk Line):

• Problem: Canada produces excellent live seafood; European markets want it. Air freight is too expensive; traditional ship freezing kills quality.
• Innovation: specialized tanks that oxygenate water without pumps, allowing live seafood to survive slow, cheap water carrier voyages
• Result: an entirely new export market opened that was previously impossible due to logistical constraints

Lesson: transportation innovation doesn’t just reduce costs — it can determine whether a market exists at all.

The Cost vs. Service Trade-Off

Approach	Inventory Level	Cost	Risk
High service (never empty shelf)	Massive warehouse stock	High	Low stockout risk
Low cost (lean inventory)	Minimal stock	Low	High stockout risk
JIT balance	Demand-driven, low	Low	Low (if data is accurate)

Walmart’s JIT achieves low cost and low stockout risk by replacing inventory with real-time data — which is cheaper than holding physical stock.

Cross-Course Connections

DistributionChannels — the channel structure determines who is responsible for physical distribution at each step
RetailersAndIntermediaries — intermediaries often handle warehousing and transportation on behalf of manufacturers
OperationsManagement — physical distribution overlaps with operations management’s logistics and supply chain function
SupplyChainManagement — JIT is a supply chain strategy as much as a distribution tactic

Key Points for Exam/Study

• Physical distribution = warehousing + transportation (both equally important)
• Goal: goods available when and where customers want them, at low cost
• Owned warehousing → consistent high volume; Independent warehousing → flexible/seasonal needs (The Brick)
• 6 transport modes: Trucks, Rail, Air, Water, Pipeline, Digital
• Air = fastest + most expensive; Water = slowest + cheapest
• Digital = zero marginal cost per unit distributed (software, music, media)
• JIT: demand-triggered restocking → lower inventory costs → lower prices (Walmart/P&G)
• JIT does not mean zero inventory — it means lower, smarter inventory
• Distribution innovation can open entirely new markets (live seafood export)

Open Questions

• How does the rise of same-day delivery expectations (Amazon Prime) change the JIT calculus for retailers?
• What happens to JIT systems when supply chains are disrupted (e.g., pandemic port closures)?