Sigma Mentoring • SM-GT-CS-01 • Leadership Hub
Game Theory for Business • Playing the Right Game

The Case Library

Six landmark negotiations, each as a full case study and as a live interactive tool where you set the variables yourself. Read the case, then open the matching tool and change the numbers — the analysis updates as you do.

Interactive Tools • Set Your Own Variables

Play the Games

Editable matrices, sliders and simulators with a "Reset to Case Data" button and an instructor reveal panel. Change a payoff, a BATNA, a discount factor or a bid and watch the equilibrium move.

Session 1 • Matrix Builder
Payoff Matrix & Nash Equilibrium
Samsung–Apple • Toyota/GM NUMMI
Edit a live 2×2 matrix; find dominant strategies and Nash Equilibria. Corrected Samsung payoffs (6,6 / 9,5).
Open tool → Session 2 • BATNA / ZOPA
BATNA & ZOPA Sliders
Disney–Fox • SoftBank–WeWork
Move each side's reservation and BATNA; watch the zone of possible agreement open, shift and close.
Open tool → Session 2 • PD Simulator
Prisoner's Dilemma Simulator
Brexit • US–China Trade War
Play repeated rounds against five strategies; see cooperation rise, collapse and recover.
Open tool → Session 4 • Shapley Calculator
Shapley Value & Coalitions
BioNTech–Pfizer • Renault–Nissan
Enter coalition values; compute each partner's fair share and spot structural instability.
Open tool → Session 4 • Game Tree Solver
Backwards Induction
Kraft Heinz–Unilever • Grab–Gojek
Build a game tree and solve it from the terminal nodes; test credible vs non-credible threats.
Open tool → Session 4 • Auction Visualiser
Auction Design & Winner's Curse
UK 3G (2000) • India 2G (2008)
Set bidder values and formats; watch allocative efficiency and the winner's curse play out.
Open tool →
Case Deep-Dives • The Full Story

Read the Cases

The full narrative, payoff analysis, cross-cultural dimension, teaching notes and discussion questions for each landmark negotiation. All facts audited and corrected.

🇰🇷Korea
Samsung ↔ Apple
The cooperation paradox
Sue your biggest customer, supply your fiercest rival — for three years. The case that makes Nash Equilibrium unforgettable.
Read case → 🇯🇵Japan
Toyota / GM · NUMMI
Winning before the meeting
The 50/50 JV decided in the pre-game. Nemawashi, ringi, and why knowledge transfers but capability does not.
Read case → 🇺🇸USA
Disney / Fox
The $18.9B zone shift
How one rival bid moved the deal by $18.9 billion in six months — and why the lower headline can win.
Read case → 🇯🇵Japan
SoftBank / WeWork
The relational BATNA
A 12-minute meeting, sunk costs and pattern-matching — why the smart money kept saying yes.
Read case → 🇬🇧UK–EU
Brexit
45 months, then 53 hours
The Prisoner's Dilemma played by governments — and the deadline that restored both discount factors at once.
Read case → 🌏Global
US–China Trade War
The wrong payoff matrix
Two games at one table — and how dual framing finally made an agreement describable as a win on both sides.
Read case →
How to use this library: pair each tool with its case. Read the Samsung–Apple case, then open the Payoff Matrix tool and rebuild its game yourself. The tools carry the same corrected numbers as the cases, the decks and the free Student Toolkit — one consistent story across every asset.
SM-GT-CS-01 · Game Theory for Business: Playing the Right Game · Sigma Mentoring / Dagda Media © 2026
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