Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Sylwester Bejger"'
Autor:
Sylwester Bejger
Publikováno v:
Energies, Vol 17, Iss 16, p 4184 (2024)
The detection and deterrence of collusive agreements among firms, such as price-fixing cartels, remain pivotal in maintaining market competition. This study investigates the application of machine learning methodologies in the behavioral screening pr
Externí odkaz:
https://doaj.org/article/14d1920f69fa4c858bccd7921bab7b95
Autor:
Jan Kotlarz, Sylwester Bejger
Publikováno v:
Forests, Vol 15, Iss 1, p 108 (2024)
In this study, we analyzed in situ data from the years 2018–2022 encompassing entire forest plantations in Poland. Based on data regarding stand density and the occurrence of fungal, water-related, climate-related, fire, and insect factors that may
Externí odkaz:
https://doaj.org/article/05fa52526f6e4b49a1ac610b23ead9c9
Autor:
Sylwester Bejger
Publikováno v:
Ekonomia i Prawo, Vol 18, Iss 4, Pp 385-412 (2019)
Motivation: Import parity pricing, potentially provoking parallel pricing, and asymmetric price transmission are both considered as the factors that can distort competitiveness and foster collusive behavior on the fuel markets.Aim: The study encompas
Externí odkaz:
https://doaj.org/article/55bbd42a9ace4f71b6db7e5432430b77
Autor:
Sylwester Bejger
Publikováno v:
Energies, Vol 14, Iss 14, p 4211 (2021)
Liquid fuels obtained in refining crude oil are one of the most important energies in economic activity. The domestic wholesale market for liquid fuels is of decisive importance for price formation in the national economy. The noncompetitive behavior
Externí odkaz:
https://doaj.org/article/3faa007285274f439b4d2ca60cf751d9
Autor:
Sylwester Bejger
Publikováno v:
Ekonomia i Prawo, Vol 15, Iss 4, Pp 419-438 (2016)
Motivation: The article contains proposals of IT solutions supporting the management of selected links in the supply chain of Disposable Medical Kits product group.Aim: The aim of the article is the analysis of the distinctive features of the supply
Externí odkaz:
https://doaj.org/article/bd966bce037e4d099136a0c50f4ba081
Autor:
Sylwester Bejger
Publikováno v:
Ekonomia i Prawo, Vol 14, Iss 2, Pp 169-188 (2015)
Anticompetitive horizontal behaviors are very common and harmful for economy as a whole and consumer welfare especially. Such behaviors in most cases mean collusion. Pro-active anticompetitive policy we want to realize implies monitoring of huge set
Externí odkaz:
https://doaj.org/article/1fb01f4357c84f1184d131a4e1246b29
Autor:
Sylwester Bejger
Publikováno v:
Ekonomia i Prawo, Vol 5, Iss 1, Pp 147-160 (2009)
This paper presents a review of a methodology of detection of overt or tacit collusion in the light of the modern competition policy based on the game theory. In this paper a consistent research procedure for identification and detection of collusion
Externí odkaz:
https://doaj.org/article/db2a0cfcd90f46198952eab704176aae
Autor:
Sylwester Bejger
Publikováno v:
Economics: Journal Articles (2012)
Externí odkaz:
https://doaj.org/article/8f995e03273a43d08458d9e016d6ca38
Autor:
Sylwester Bejger, Piotr Fiszeder
Publikováno v:
Przegląd Statystyczny. 68:1-15
We combine machine learning tree-based algorithms with the usage of low and high prices and suggest a new approach to forecasting currency covariances. We apply three algorithms: Random Forest Regression, Gradient Boosting Regression Trees and Extrem
Autor:
Sylwester Bejger
Publikováno v:
Folia Oeconomica Stetinensia, Vol 16, Iss 1, Pp 286-300 (2016)
In this paper, we constructed a theoretical model of strategic pricing behavior of the players in a Polish wholesale fuel market. This model is consistent with the characteristics of the industry, the wholesale market, and the players. The model is b