Case Article—Seagate - Quantum: Encroachment Strategies

The Case for Franchise Encroachment

As franchisors add same brand outlets to a geographical market, the resulting encroachment from multiple locations creates con ict via revenue cannibalization. We empirically explore the possibility that encroachment could, in fact, have the opposite e ect by increasing revenues as more same brand units are added. In particular, we propose that same brand units create a spillover e ect that can...

Quantum Strategies

We consider game theory from the perspective of quantum algorithms. Strategies in classical game theory are either pure (deterministic) or mixed (probabilistic). While not every two-person zero-sum finite game has an equilibrium in the set of pure strategies, von Neumann showed that there is always an equilibrium at which each player follows a mixed strategy. A mixed strategy deviating from the...

Quantum Games and Quantum Strategies

One might wonder what games and physics could have possibly in common. After all, games like chess or poker seem to heavily rely on bluffing, guessing and other activities of unphysical character. Yet, as was shown by von Neumann and Morgenstern [1], conscious choice is not essential for a theory of games. At the most abstract level, game theory is about numbers that entities are efficiently ac...

Quantum Physics: A Case for Anti-Realism?

Quantum Evolutionary Stable Strategies

The extension of the concept of Evolutionary Stable Strategy (ESS) to quantum domain is investigated. For the pair-wise game of Prisoner's Dilemma played in a population it is shown that a two-parameter quantum strategy can invade a classical ESS. However in this game a quantum ESS cannot be invaded by another two parameter quantum strategy. Game theory has been successfully applied in mod-elin...