Purpose: The paper proposes a research method for measuring strategic interactions between airline joint-venture alliances that compete with each other. Design/Methodology/Approach: The proposed method is based on the non-cooperative game theory with a Nash-Cournot equilibrium. It consists in the development of a model that compares economic performance of airline long-haul, intercontinental operations in two consecutive scenarios, before and after joining an alliance. Findings: A model of strategic interactions between airline joint-venture alliances can be successfully based on the logic of the Nash-Cournot equilibrium. Furthermore, the game theory is an effective tool for analysing economic performance of airline joint business agreements. Practical Implications: The method can be used in measuring bottom line performance of long-haul airline joint business agreements world-wide. For example, on the EU–US airline market, the method can be used in the analysis of the following alliances: United Airlines – Lufthansa Group; American Airlines – International Airlines Group – Finnair; Delta Air Lines – Air France KLM – Virgin Atlantic. Originality/Value: This is a novel approach to research of advanced airline alliance strategies.

Dominik Boniecki, Elzbieta Marciszewska (2021). Non-Cooperative Game Theory in Measuring Strategic Interactions between Airline Joint-Venture Alliances, European Research Studies Journal Volume XXIV Issue 2 - Part 1, 152-164