Browsing İktisat / Economics by Author "Kabasakal, Ali"

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Contributions of Turkish academicians supervising PhD dissertations and their universities to economics: an evaluation of the 1990-2011 period

Kutlar, Aziz; Kabasakal, Ali (SPRINGER, 2013)

In this study, doctoral dissertations conducted at the Turkish Universities for the period of 1990-2011 and the scientifically indexed publications of the professors supervising these dissertations were investigated. In ...
Determination of the efficiency of the world railway companies by method of DEA and comparison of their efficiency by Tobit analysis

Kutlar, Aziz; Kabasakal, Ali (SPRINGER, 2013)

This paper attempts to measure the performance of railway companies that produce passenger and freight services around the world. The data covering 10 years from 2000 to 2009 is analyzed first via the data envelopment ...
Efficiency determinations of the worldwide railway companies via DEA and contributions of the outputs to the efficiency and TFP by panel regression

Kabasakal, Ali; Kutlar, Aziz (SPRINGER, 2015)

This study attempts to obtain efficiency scores of thirty-one railway companies operating worldwide by using data envelopment analysis. To assess the data covering a term from 2000 to 2009, we use CCR and BCC methods. ...