Lanchester Equation
In game theory, the Lanchester equation describes how symmetric competitors in price wars or marketing spending reach equilibria where further spending does not improve market position.
Real World
The Cola Wars between Coca-Cola and PepsiCo illustrate this dynamic: both firms spent billions on advertising for decades yet neither permanently shifted market share, while both would have been better off spending less — a classic advertising prisoner's dilemma.
Exam Focus
Frame your answer using game theory terminology — dominant strategy, Nash equilibrium — to access the higher mark bands on 'explain' or 'analyse' questions.
How well did you know this?