Porter's Five Forces Model
Porter’s Five Forces for MIS 101
How information systems reshape industry structure and firm strategy
Learning Objectives
· Describe each of Porter’s Five Forces and why they matter.
· Map IS/IT capabilities to weaken threats or strengthen position.
· Select KPIs that indicate force movement (e.g., churn, fill rate).
· Apply the framework to a short case and build a simple KPI view.
The Five Forces (Industry Structure)
· Buyer power
· Supplier power
· Threat of new entrants
· Threat of substitutes
· Rivalry among existing competitors
Buyer Power — IS Levers & Metrics
What it is: Ability of customers to drive price/terms; high when switching is easy.
· IS levers:
· CRM & personalization
· Loyalty apps & saved preferences
· Self-service portals & transparent service levels
· Why it helps:
· Creates switching costs, increases perceived value, improves satisfaction
· Metrics:
· Churn %, Share-of-wallet, Repeat purchase rate, App adoption, Offer redemption rate
· Example (Grocery):
· Mobile loyalty + personalized coupons reduce price sensitivity
Supplier Power — IS Levers & Metrics
What it is: Ability of suppliers to set price/terms; high when few alternatives.
· IS levers:
· Supplier Relationship Management (SRM)
· EDI/APIs for multi-sourcing
· Inventory visibility & lead-time analytics
· Why it helps:
· Reduces dependence, enables renegotiation, improves planning accuracy
· Metrics:
· Lead-time variability, On-time-in-full (OTIF), Supplier concentration index
Threat of New Entrants — IS Levers & Metrics
What it is: Ease with which new firms can enter and compete.
· IS levers:
· Data moats & network effects
· Scalable platforms & ecosystems
· Security/compliance capabilities (trust)
· Why it helps:
· Raises barriers beyond capital—capability & trust are harder to copy
· Metrics:
· User growth vs. competitor launches, Ecosystem partner count, Security audit pass rate
Threat of Substitutes — IS Levers & Metrics
What it is: Alternative products/services satisfying the same need.
· IS levers:
· Product telemetry & rapid A/B testing
· Bundling & differentiated features
· UX & convenience (mobile, omni-channel)
· Why it helps:
· Increases differentiation and convenience, blunting substitution
· Metrics:
· Time-on-platform, Feature adoption, Substitution rate, Net promoter score (NPS)
Rivalry Among Existing Competitors — IS Levers & Metrics
What it is: Intensity of competition on price, features, service.
· IS levers:
· ERP + analytics for cost/quality
· Demand forecasting & dynamic pricing
· Omnichannel integration
· Why it helps:
· Shifts rivalry to speed/service, reduces waste and stockouts
· Metrics:
· Gross margin %, Fill rate, On-time delivery %, Stockout rate, Markdown %
Tie to MIS Five-Component Model
· Hardware & Software:
· Cloud, mobile, data platforms enable capabilities
· Data:
· The strategic asset—drives personalization and planning
· Procedures:
· Playbooks (e.g., retention flows) operationalize strategy
· People:
· Trained teams execute and improve processes
Class Activities
1) Mini-Case Map (20 min)
Objective: Connect Porter’s Five Forces to concrete IS capabilities and measurable outcomes.
· Setup (2 min):
· Teams of 3–4 choose an industry: Grocery Retail, Ride-Hailing, Streaming Media, Telemedicine.
· Instructor brief (3 min):
· For each force, pick one IS/IT capability that strengthens your position and one metric you’ll move.
· Team work (10 min):
· Template per force: Force | Pain/Risk | IS Capability | Why it changes the force | Metric (baseline → target)
· Share-out (5 min):
· Each team presents one force (60–90 sec).
Example snippets: Grocery–Buyer Power: Loyalty app + personalized coupons → Metrics: churn %, basket size; Ride-Hailing–Supplier Power: Driver app incentives → active driver hours, cancellation rate.
2) Dashboard Lab (30–35 min): KPIs that Move the Forces
Objective: Build a simple KPI view and explain which force each KPI targets.
· Data fields (provided):
· Date, Customer_ID, Orders, Items, Revenue, Returns, On_Time_Deliveries, Total_Shipments, Stockouts, Acquisition_Spend
· KPIs to build:
· Churn % (targets Buyer Power)
· Fill Rate (targets Substitutes & Rivalry)
· On-Time Delivery % (targets Rivalry)
· CAC (targets Rivalry & New Entrants)
· Deliverable:
· 4 KPI cards + 1 trend chart + a one-line rationale per KPI
3) Exam Prompt (Short Essay, 12–15 min)
Prompt: Explain how introducing a loyalty app and inventory visibility changes buyer power and rivalry for a grocery chain. Use mechanisms → metrics.
· Model outline:
· Buyer Power ↓ via CRM/personalization/saved lists → churn %, share-of-wallet
· Rivalry shifts to service via real-time inventory, pickup windows → fill rate, on-time pickup %
· Note risks: privacy, cannibalization, data quality
Example: Grocery Mapping (One-Page Summary)
· Buyer Power:
· Loyalty app + coupons → Churn 4.2% → 3.0%
· Supplier Power:
· Supplier portal + OTIF tracking → Lead-time variance ↓
· New Entrants:
· Ecosystem partnerships + data moat → Partner count ↑
· Substitutes:
· In-app meal plans + telemetry → Substitution rate ↓
· Rivalry:
· Forecasting + dynamic pricing → Stockouts ↓, Margin % ↑
Discussion & Wrap
· Which IS investments give the biggest strategic “lift” in your industry?
· What KPIs would convince leadership the force has shifted?
· Where are risks/ethics concerns (privacy, bias, lock-in)?
· Exit ticket: one capability + one metric you’d implement next term.
Lesson Summary
In MIS 101, students learn about how information systems reshape industry structure and firm strategy through Porter's Five Forces framework. The learning objectives include:
- Describing each of Porter’s Five Forces and their significance
- Mapping IS/IT capabilities to weaken threats or strengthen positions
- Selecting Key Performance Indicators (KPIs) that indicate force movement
- Applying the framework to a short case study and building a simple KPI view
The Five Forces in Industry Structure covered in the framework are:
- Buyer power
- Supplier power
- Threat of new entrants
- Threat of substitutes
- Rivalry among existing competitors
Each force is detailed along with IS levers and metrics to understand their impact:
- Buyer Power - Focuses on customers' ability to drive prices/terms and switching costs
- Supplier Power - Concerns suppliers' ability to set prices and alternatives
- Threat of New Entrants - Considers the ease of new firms entering the market
- Threat of Substitutes - Explores alternative products/services satisfying the same need
- Rivalry Among Existing Competitors - Involves the intensity of competition on various aspects
Class activities include a Mini-Case Mapping exercise relating the forces to IS capabilities and outcomes, a Dashboard Lab creating KPIs targeting the forces, and an Exam Prompt exploring the impact of IS interventions on buyer power and rivalry in a grocery chain. Discussions also focus on IS investments, convincing KPIs for force shifts, ethics concerns, and future implementations.
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