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001-es BibID:BIBFORM110161
035-os BibID:(Cikkazonosító)2607 (WOS)000539257300199 (Scopus)85085866339
Első szerző:Akbar, Usman
Cím:Energy efficiency in transportation along with the belt and road countries / Usman Akbar, József Popp, Hameed Khan, Muhammad Asif Khan, Judit Oláh
Dátum:2020
ISSN:1996-1073
Megjegyzések:China's huge investment in the "belt and road initiative" (BRI) may have helped improve the economic level of participating countries, but it may also be accompanied by a substantial increase in greenhouse gas (GHG) emissions. The BRI corridors aim to bring regional stability and prosperity. In such efforts, energy efficiency due to increased transport has been overlooked in the recent literature. This paper employed a data envelopment analysis of the slack-based measurement (SBM) for bad output to assess the transport energy efficiency of 19 countries under the BRI economic corridors. By using the most cited transport-related input variables, such as vehicles, labor, motor oil, jet fuel, and natural gas, this study first analyzes the transport energy efficiency by first assuming the output variables individually and then takes two years as a pre- and post-BRI case by considering the aggregated output model. The results show an increase in economic activity but a decline in transport energy efficiency in terms of consumption and emissions.
Tárgyszavak:Társadalomtudományok Gazdálkodás- és szervezéstudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
transport energy
belt and road initiative
economic corridors
slack-based measurement
data envelopment analysis (DEA)
Megjelenés:Energies. - 13 : 10 (2020), p. 1-20. -
További szerzők:Popp József (1955-) (közgazdász) Khan, Hameed Khan, Muhammad Asif (1976-) (közgazdász) Oláh Judit (1973-) (agrárközgazdász, logisztika)
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2.

001-es BibID:BIBFORM110162
035-os BibID:(Cikkazonosító)6538 (WOS)000602783100001 (Scopus)85099931867
Első szerző:Akbar, Usman
Cím:Trade-Offs for the optimal energy efficiency of road transportation: Domestic cases in developing countries / Usman Akbar, Muhammad Asif Khan, Marryum Akmal, Éva Zsuzsanna Tóth Naárné, Judit Oláh
Dátum:2020
ISSN:1996-1073
Megjegyzések:The increase in domestic transportation in developing countries may adversely affect the energy efficiency of road transportation due to effective productivity and carbon dioxide emissions (CO2). When evaluating quantitatively the countries on the efficiency frontier, poor efficiency can still be seen sometimes due to the slack available in undesirable output measures. This paper uses desirable and undesirable output variables, such as passenger-kilometers (PKM), tones-kilometers (TKM), and carbon dioxide (CO2), to compute the weakly efficient decision-making units (DMUs). The data envelopment analysis (DEA) technology is used to assess the efficiencies of the decision-making units (DMUs), which are countries in our case. Then, the trade-off method with efficient binding surfaces is used to attain the optimal efficiencies of the weakly efficient DMUs. The marginal rates aid this trade-off analysis. Resultantly, such marginal trade-offs do not deteriorate the efficiency of the DMUs below the frontier line. We calculate the maximum change (margin) in a specific variable amount when another variable`s amount is changed. Thus, such a computation gives us different margins, with which each output variable can be a traded off to bring a DMU further toward the closest optimal point possible. The marginal trade-off can help the managers and policymakers in effective decision-making, and it is further recommended to address efficiency damages (by the undesired outputs).
Tárgyszavak:Társadalomtudományok Gazdálkodás- és szervezéstudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
data envelopment analysis
trade-offs
efficiency
road transportations
Megjelenés:Energies. - 13 : 24 (2020), p. 1-14. -
További szerzők:Khan, Muhammad Asif (1976-) (közgazdász) Akmal, Marryum Naárné Tóth Éva Zsuzsanna Oláh Judit (1973-) (agrárközgazdász, logisztika)
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3.

001-es BibID:BIBFORM111767
Első szerző:Akbar, Usman
Cím:Trade-Offs in Competitive Transport Operations. [Economies] / Usman Akbar, Akash Kumar, Hameed Khan, Muhammad Asif Khan, Khansa Parvaiz, Judit Oláh
Dátum:2022
Megjelenés:Utánközlés / másodközlés
Megjegyzések:One of the goals of developing a transport corridor is to promote socio-economic development by improving connectivity and sustainable transport operations, which largely depends on the operational strategy. Trade-off policies can be important tools for gaining the competitive advantage of road transport corridors, and thus, help facilitate sustainable growth and welfare. This article uses a case-based approach to observe the trade-offs in the first phase of transport infrastructure development, and then, in the second stage, further explores the trade-off variables in the transport operations strategy under the China-Pakistan Economic Corridor (CPEC). The results from the three cases of the parallel route system of the CPEC indicate that trade-off is an easily understandable and applicable method, which can foresee the operational gains or compromises for significant welfare of the regions. The implications of the trade-off are two fold, first is the "importance" of the trade-off, which is related to its impact on operational competitiveness. The other is the "sensitivity" of the trade-off, in terms of the change that will be caused to one variable when changing the other. The trade-off concept can be used for several landlocked transport corridors to achieve a competitive edge in transit trade.
Akbar, Usman: Trade-Offs in Competitive Transport Operations
ISBN:978-3-0365-3084-0 (hardback) 978-3-0365-3085-7 (PDF)
Tárgyszavak:Társadalomtudományok Gazdálkodás- és szervezéstudományok tanulmány, értekezés
könyvrészlet
trade-offs
transport operations
competitiveness
sustainability
Megjelenés:Asset Pricing, Investment, and Trading Strategies / ed. Wing-Keung Wong. - p. 35-53. -
További szerzők:Khan, Hameed Khan, Muhammad Asif (1976-) (közgazdász) Parvaiz, Khansa Oláh Judit (1973-) (agrárközgazdász, logisztika)
Pályázati támogatás:NKFIA-130377
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4.

001-es BibID:BIBFORM086802
035-os BibID:(cikkazonosító)56
Első szerző:Akbar, Usman
Cím:Trade-Offs in Competitive Transport Operations / Usman Akbar, Akash Kumar, Hameed Khan, Muhammad Asif Khan, Khansa Parvaiz, Judit Oláh
Dátum:2020
ISSN:2227-7099
Megjegyzések:One of the goals of developing a transport corridor is to promote socio-economic development by improving connectivity and sustainable transport operations, which largely depends on the operational strategy. Trade-o policies can be important tools for gaining the competitive advantage of road transport corridors, and thus, help facilitate sustainable growth and welfare. This article uses a case-based approach to observe the trade-o s in the first phase of transport infrastructure development, and then, in the second stage, further explores the trade-o variables in the transport operations strategy under the China-Pakistan Economic Corridor (CPEC). The results from the three cases of the parallel route system of the CPEC indicate that trade-o is an easily understandable and applicable method, which can foresee the operational gains or compromises for significant welfare of the regions. The implications of the trade-o are two fold, first is the "importance" of the trade-o , which is related to its impact on operational competitiveness. The other is the "sensitivity" of the trade-o , in terms of the change that will be caused to one variable when changing the other. The trade-o concept can be used for several landlocked transport corridors to achieve a competitive edge in transit trade.
Akbar, Usman: Trade-Offs in Competitive Transport Operations. [Economies]
Tárgyszavak:Társadalomtudományok Gazdálkodás- és szervezéstudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Economies. - 8 : 3 (2020), p. 1-19. -
További szerzők:Kumar, Akash Khan, Hameed Khan, Muhammad Asif (1976-) (közgazdász) Parvaiz, Khansa Oláh Judit (1973-) (agrárközgazdász, logisztika)
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5.

001-es BibID:BIBFORM091816
035-os BibID:(cikkazonosító)365 (WoS)000621967700001 (Scopus)85107488854
Első szerző:Guang Ji, Tong
Cím:Marginal Trade-Offs for Improved Agro-Ecological Efficiency Using Data Envelopment Analysis / Tong Guang Ji, Ali Raza, Usman Akbar, Masood Ahmed, József Popp, Judit Oláh
Dátum:2021
ISSN:2073-4395
Megjegyzések:Today's agricultural management decisions impact food security and sustainable ecosystems, even when operating with back-to-basic operations. In such endeavors, policymakers usually need a quantitative tool, such as trade-offs margins, to effectively adjust resource consumption or production. This paper applies the weighted slack-based measurement (SBM-DEA) program to 136 developing countries' agricultural performance. First, it finds the current agricultural efficiency and then makes marginal trade-offs on desirable-output variables (such as crop yield and forest area) to see the effective changes in undesirable-output (such as methane and nitrous oxide emissions). The results show that choosing effective marginal trade-offs does not deteriorate the relative efficiency of the decision-making units (DMUs) below the efficient frontier line. Thus, such a method enables the decision-makers to determine the best marginal trade-off points to reach the optimal efficiencies and decide which output factor needs special brainstorming to design effective policy.
Tárgyszavak:Társadalomtudományok Gazdálkodás- és szervezéstudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Agronomy-Basel. - 11 : 2 (2021), p. 1-33. -
További szerzők:Raza, Ali Akbar, Usman Ahmed, Masood Popp József (1955-) (közgazdász) Oláh Judit (1973-) (agrárközgazdász, logisztika)
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