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Argumenta Oeconomica, 2017, Nr 2 (39), s. 307-340 ; The aim of the paper is the investigation of the long-run relationship between carbon dioxide emissions and economic growth in the Central and East European countries with special emphasis on a decoupling of carbon emissions and economic growth. The implementation of threshold cointegration with asymmetric adjustment enables detecting the changes in the non-linear pollutant-income relationship in the long-run, and in consequence allows to identify the non-linear causal link among CO2 emissions, GDP and energy consumption in a more comprehensive way and formulate more reliable recommendations for energy policy. The main contribution of the paper lies in testing the standard EKC hypothesis and its extended version by adding energy consumption and time trend for the CEE countries in order to test the robustness of the results. We also concentrate on the identification of the short-run and long-run causal relationship between per capita CO2 emissions and per capita income using threshold error correction models (T-ECM) and momentum threshold error correction model (M-TECM). There is significant evidence that the inverted U-shape (EKC) holds between per capita CO2 and GDP per capita for the Czech Republic, Slovakia and Romania meaning that economic growth decouples from CO2 emissions. This finding can be interpreted in terms of effective environmental policy directed into the reduction of CO2 emissions in these countries. We also find that temporary disequilibrium from the long-run EKC is corrected in an asymmetric fashion for Romania, Slovenia, Estonia in the framework of the standard EKC model, and additionally for the Czech Republic and Bulgaria (besides Slovenia and Estonia) based on the extended specification of EKC model ; Wrocław ; Argumenta Oeconomica, 2017, Nr 2 (39), s. 307-340 ; The aim of the paper is the investigation of the long-run relationship between carbon dioxide emissions and economic growth in the Central and East European countries with special ...

Argumenta Oeconomica, 2017, Nr 2 (39), s. 307-340 ; The aim of the paper is the investigation of the long-run relationship between carbon dioxide emissions and economic growth in the Central and East European countries with special emphasis on a decoupling of carbon emissions and economic growth. The implementation of threshold cointegration with asymmetric adjustment enables detecting the changes in the non-linear pollutant-income relationship in the long-run, and in consequence allows to identify the non-linear causal link among CO2 emissions, GDP and energy consumption in a more comprehensive way and formulate more reliable recommendations for energy policy. The main contribution of the paper lies in testing the standard EKC hypothesis and its extended version by adding energy consumption and time trend for the CEE countries in order to test the robustness of the results. We also concentrate on the identification of the short-run and long-run causal relationship between per capita CO2 emissions and per capita income using threshold error correction models (T-ECM) and momentum threshold error correction model (M-TECM). There is significant evidence that the inverted U-shape (EKC) holds between per capita CO2 and GDP per capita for the Czech Republic, Slovakia and Romania meaning that economic growth decouples from CO2 emissions. This finding can be interpreted in terms of effective environmental policy directed into the reduction of CO2 emissions in these countries. We also find that temporary disequilibrium from the long-run EKC is corrected in an asymmetric fashion for Romania, Slovenia, Estonia in the framework of the standard EKC model, and additionally for the Czech Republic and Bulgaria (besides Slovenia and Estonia) based on the extended specification of EKC model ; Wrocław ; Argumenta Oeconomica, 2017, Nr 2 (39), s. 307-340 ; The aim of the paper is the investigation of the long-run relationship between carbon dioxide emissions and economic growth in the Central and East European countries with special ...

e-Informatica Vol. VI, 2012; ISSN 1897-7979

e-Informatica Vol. VI, 2012; ISSN 1897-7979

Optica Applicata, Vol. 41, 2011, Nr 2, s. 351-357 ; Wrocław ; Optica Applicata, Vol. 41, 2011, Nr 2, s. 351-357 ; Wrocław ; Optica Applicata, Vol. 41, 2011, Nr 2, s. 351-357 ; Wrocław

Optica Applicata, Vol. 41, 2011, Nr 2, s. 351-357 ; Wrocław ; Optica Applicata, Vol. 41, 2011, Nr 2, s. 351-357 ; Wrocław ; Optica Applicata, Vol. 41, 2011, Nr 2, s. 351-357 ; Wrocław

Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu = Research Papers of Wrocław University of Economics, 2015, Nr 377, s. 190-202

Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu = Research Papers of Wrocław University of Economics, 2015, Nr 377, s. 190-202

The objective of the present study was to experimentally investigate environmental emissions and performance of a stationary type diesel engine fuelled with biodiesels derived from two different feedstocks; one is more unsaturated (rice bran biodiesel) and the other one is more saturated in nature (palm biodiesel) and compare with petrodiesel. Tests were conducted in a single cylinder, air cooled, direct injection diesel engine. From the experimental results, it was found that the nitrogen oxides emissions were higher with biodiesel fuels. The hydrocarbon and carbon monoxide emissions of palm biodiesel were lower than the other test fuels. The smoke emission of rice bran biodiesel was the lowest compared to the rest of the fuels. A considerable reduction in thermal efficiency was found with both the biodiesels when compared to diesel. From the present study, it is concluded that the biodiesels derived from palm and rice bran oils with their different fatty acid composition, show lower exhaust emissions and closer performance characteristics to diesel.