In the first chapter, we examine the relation between efficiency and competition in a dynamic framework. For this purpose, we measure efficiencies and conduct of the U.S. airlines in two city-pairs. We model the conduct parameter as an unobservable state variable which is an AR(1) process and...

This study applies a panel data stochastic frontier analysis to country data towards examining the effect of gender equity in labor market opportunities upon efficiency in the production of GDP. It finds that aggregate technical efficiency is improved by a widening of women's labor market...

We consider a conduct parameter model where firms price discriminate based on the consumers' willingness to pay. For any conduct, the average price is invariant to the extent of price discrimination. Moreover, when the number of prices goes to infinity, there is a linear relationship between...

We propose conduct parameter based market power measures within a model of price discrimination, extending work by Hazledine (2006) and Kutlu (2012) to certain forms of second degree price discrimination. We use our model to estimate the market power of U.S. airlines in a price discrimination...

We propose a fairly general individual effects stochastic frontier model, which allows both heterogeneity and inefficiency to change over time. Moreover, our model handles the endogeneity problems if either at least one of the regressors or one-sided error term is correlated with the two-sided...

This paper proposes an alternative estimation procedure for estimating the unobserved effects panel stochastic frontier models with endogenous regressors. Specifically, two-stage estimation method is used, where in the first stage, the frontier parameters are estimated based on GMM procedure,...

We consider two agency-theory-based structural models and a reduced form model of bank inefficiency. The two structural models assume that the inefficiencies and quantities are sequentially and simultaneously determined, respectfully. The reduced form model assumes that inefficiency of a bank...

In this study we analyze the determinants of airline price dispersion. We particularly concentrate on the conduct and marginal cost efficiency. The effect of conduct on price dispersion seems to depend on the characteristics of the market. For the big city routes, we observe positive effect; and...

One of the advantages of conduct parameter games is that they enable estimation of market power without total cost data. In line with this, we develop a conduct parameter based model to estimate the firm specific "marginal cost efficiency" and conduct without using total cost data. The marginal...

We present a general maximum likelihood based framework to handle the endogeneity problem in the stochastic frontier models. We implement Monte Carlo experiments to analyze the performance of our estimator. Our findings show that our estimator outperforms standard estimators that ignore endogeneity