1. Introduction Background The rationale for the research Empirical issues and data sources 1.3.1 Empirical efficiency analysis 1.3.2 An Empirical analysis of Air transport growth1.3.3 Data sources Contributions of this research Policy recommendations Limitations and guidelines for future research2. Performance Overview of Ethiopian Airlines and Airports Status of Ethiopian Airports Traffic Trends Growth Trends in Aircraft Types and Numbers Brief Financial Status of Ethiopian Trends in Worldwide Networks Ethiopian’s flights to China Ethiopian’s flights to African countries3. Summary of each paper ReferencesAnnexure AChapter Two An Analysis of the Cost Efficiency of Ethiopian Airports1. Introduction2. Literature Review 2.1 Theoretical literature 2.2 A generalization of the SFA models 2.3 Empirical applications of the models to the airport industry3. Dataset and Model Specifications 3.1 Data and description of variables 3.2 Input prices of airport services 3.3 Airport services 3.4 Passengers and Freight Cargo3.5 Airport facilities and services 4. Model Specification and Efficiency Measurement Approaches 5. Analysis and Discussion of the Estimation Results 5.1 Output and inputs price elasticities 5.2 Efficiency of Airports6. Summary and ConclusionsReferencesChapter Three An Analysis of the Production Efficiency of Ethiopian AirportsAbstract 1. Introduction 2. The Aviation Industry in Ethiopia3. Literature review3.1 Stochastic frontier functions3.1.1 General production frontier model3.1.2 Functional form of the scholastic production frontier 3.1.3 Stochastic production frontier model with panel data3.2 Applications to the aviation industry4. Data and Model Specifications 4.1 Dataset and a description of the variables 4.2 Model specification framework5. Estimation and Discussion of the Results6. Summary, Conclusion, and RecommendationsReferencesChapter FourLabor Use Efficiency of Ethiopian Airports Abstract 1. Introduction2. Literature review 3. Data and a description of the variables3.1 Output data’s definitions3.2 Input data’s definitions4. The empirical input requirement frontier model 5. Panel data labor use model’s specification and estimation 6. A Discussion of the results6.1 Fixed-effects model’s estimation6.2 Model separating Labor use persistent and transitory inefficiencycomponents 6.3 An Analysis of the results of the MLE estimation model (Model 3) 6.4 Robustness test for the stochastic frontier efficiency models7. Summary, Conclusion, and RecommendationsReferencesChapter FiveGrowth Determinants of Ethiopian Air Transport