Πλοήγηση ανά Συγγραφέα "Papadopoulos, Alecos"

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Econometrics: little things you should know about
(2023) Papadopoulos, Alecos; Athens University of Economics and Business, Department of Economics
Shots in little dark corners of econometrics, wearing night vision goggles.
Economics: little things you should know about
(2023) Papadopoulos, Alecos; Athens University of Economics and Business, Department of Economics
Shots in little dark corners of economics, wearing night vision goggles.
The double half-normal distribution and its extensions
(2015) Papadopoulos, Alecos; Athens University of Economics and Business, Department of Economics
We use the difference of two half-normal random variables as a device to generate a class of distributions whose members have Gaussian functional forms but possess the characteristic kink of the Laplace distribution and exhibit positive excess kurtosis. These distributions provide data-modeling tools alternative to the use of the Laplace distribution, but they also have applications wherever absolute values of normal random variables appear, for example in relation to the absolute error of estimators and predictors, but also in Brownian motion theory. We provide Monte Carlo evidence related to the performance of maximum likelihood estimation of the distribution.
The two-tier stochastic frontier (2TSF) framework: theory and applications, models and tools
(2018-11-07) Papadopoulos, Alecos; Παπαδόπουλος, Αλέξανδρος (Αλέκος); Athens University of Economics and Business, Department of Economics; Tsionas, Efthimios; Arvanitis, Stylianos; Kollintzas, Tryphon; Tzavalis, Elias; Kumbhakar, Subal; Parmeter, Christopher; Sakellaris, Plutarchos
This PhD thesis, written in English with a summary in Greek, is a monograph on the Two-tier Stochastic Frontier model (2TSF). The model is capable of estimating the effects of two latent variables of opposite direction on the dependent variable in a regression context, and it has been applied to a wide variety of economic and non-economic phenomena. The thesis starts with a review of the literature, and then moves on to critically examine the various structural foundations that have been proposed for the model in the past. Then, five new 2TSF statistical models are presented in every technical detail so that they can be readily implemented, enlarging the applied scope of the model. Then we present two economic models, one where a new, targets-based bilateral Nash bargaining model is presented, and another for the contribution of Management to the output of a firm. Both can be estimated by a 2TSF econometric model. Five short empirical applications showcase the various theoretical results and tools. The thesis contains also the Bibliography List as well as an extensive Technical Appendix.