5. Conclusion
Many countries have a system of airports comprising airports of different sizes, airline and passenger characteristics, investment needs and market power. Given the diversity of airports, the regulatory approaches required for each are necessarily different. This paper proposes a general framework comprising decisions to be made for seven variables which is able to accommodate varied approaches. These approaches include light-handed regulation, price or revenue yield caps, rate of return regulation, earnings sharing, as well as choice of till. With privatization and deregulation, the airline and airport sectors have undergone tremendous growth and structural changes in the past few decades. As airline and airport markets evolve rapidly in emerging countries, this will require flexibility in choice of regulatory arrangements. An inappropriate regulatory regime that is not suited to local airport conditions can result in inefficiencies, distortions and present obstacles to investment. The general framework as proposed in this paper can also help facilitate transitions to different regulatory regimes as circumstances change.