IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v300y2024ics0360544224013379.html
   My bibliography  Save this article

Enabling large-scale integration of electric bus fleets in harsh environments: Possibilities, potentials, and challenges

Author

Listed:
  • Harasis, Salman
  • Khan, Irfan
  • Massoud, Ahmed

Abstract

This paper presents a comprehensive and detailed investigation of electric bus transit systems, focusing on their feasibility in harsh environmental areas. The aspects that combine economics, operation, long-term performance, and reliability are all addressed and discussed in both short and long-term horizons. This work covers most of the “important to consider” criteria, compares the strategies applied in E-bus energy management, and recommends the best practices to follow in the presence of many system variables. Due to the significant impact of the ambient temperature, characterizing the battery performance under hot ambient temperatures is performed considering the existing Li-ion battery technologies. Moreover, the grid impact of large-scale charging systems is identified and classified by identifying the factors affecting the grid hosting capacity and permissible interaction levels. This work includes developing a comprehensive picture of the state of the art, emphasizing the gaps found in the literature, and proposing new venues for future research that help address the identified issues to enable reliable E-transportation plans.

Suggested Citation

  • Harasis, Salman & Khan, Irfan & Massoud, Ahmed, 2024. "Enabling large-scale integration of electric bus fleets in harsh environments: Possibilities, potentials, and challenges," Energy, Elsevier, vol. 300(C).
    • Handle: RePEc:eee:energy:v:300:y:2024:i:c:s0360544224013379
    DOI: 10.1016/j.energy.2024.131564
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544224013379
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2024.131564?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Perugu, Harikishan & Collier, Sonya & Tan, Yi & Yoon, Seungju & Herner, Jorn, 2023. "Characterization of battery electric transit bus energy consumption by temporal and speed variation," Energy, Elsevier, vol. 263(PC).
    2. Nikita V. Martyushev & Boris V. Malozyomov & Svetlana N. Sorokova & Egor A. Efremenkov & Mengxu Qi, 2023. "Mathematical Modeling of the State of the Battery of Cargo Electric Vehicles," Mathematics, MDPI, vol. 11(3), pages 1-19, January.
    3. Csiszár, Csaba & Csonka, Bálint & Földes, Dávid & Wirth, Ervin & Lovas, Tamás, 2019. "Urban public charging station locating method for electric vehicles based on land use approach," Journal of Transport Geography, Elsevier, vol. 74(C), pages 173-180.
    4. Mohammed Al-Saadi & Josu Olmos & Andoni Saez-de-Ibarra & Joeri Van Mierlo & Maitane Berecibar, 2022. "Fast Charging Impact on the Lithium-Ion Batteries’ Lifetime and Cost-Effective Battery Sizing in Heavy-Duty Electric Vehicles Applications," Energies, MDPI, vol. 15(4), pages 1-23, February.
    5. Mohammed Mahedi Hasan & Nikos Avramis & Mikaela Ranta & Andoni Saez-de-Ibarra & Mohamed El Baghdadi & Omar Hegazy, 2021. "Multi-Objective Energy Management and Charging Strategy for Electric Bus Fleets in Cities Using Various ECO Strategies," Sustainability, MDPI, vol. 13(14), pages 1-42, July.
    6. Basma, Hussein & Mansour, Charbel & Haddad, Marc & Nemer, Maroun & Stabat, Pascal, 2020. "Comprehensive energy modeling methodology for battery electric buses," Energy, Elsevier, vol. 207(C).
    7. Zha, Yunfei & He, Shunquan & Meng, Xianfeng & Zuo, Hongyan & Zhao, Xiaohuan, 2023. "Heat dissipation performance research between drop contact and immersion contact of lithium-ion battery cooling," Energy, Elsevier, vol. 279(C).
    8. Wen, Shuang & Lin, Ni & Huang, Shengxu & Wang, Zhenpo & Zhang, Zhaosheng, 2023. "Lithium battery health state assessment based on vehicle-to-grid (V2G) real-world data and natural gradient boosting model," Energy, Elsevier, vol. 284(C).
    9. Dima Alame & Maher Azzouz & Narayan Kar, 2020. "Assessing and Mitigating Impacts of Electric Vehicle Harmonic Currents on Distribution Systems," Energies, MDPI, vol. 13(12), pages 1-17, June.
    10. Subramanian, Vignesh & Feijoo, Felipe & Sankaranarayanan, Sriram & Melendez, Kevin & Das, Tapas K., 2022. "A bilevel conic optimization model for routing and charging of EV fleets serving long distance delivery networks," Energy, Elsevier, vol. 251(C).
    11. Manzolli, Jônatas Augusto & Trovão, João Pedro & Antunes, Carlos Henggeler, 2022. "A review of electric bus vehicles research topics – Methods and trends," Renewable and Sustainable Energy Reviews, Elsevier, vol. 159(C).
    12. Fusco Rovai, Fernando & Regina da Cal Seixas, Sônia & Keutenedjian Mady, Carlos Eduardo, 2023. "Regional energy policies for electrifying car fleets," Energy, Elsevier, vol. 278(PA).
    13. Mohammed Al-Saadi & Sharmistha Bhattacharyya & Pierre Van Tichelen & Manuel Mathes & Johannes Käsgen & Joeri Van Mierlo & Maitane Berecibar, 2022. "Impact on the Power Grid Caused via Ultra-Fast Charging Technologies of the Electric Buses Fleet," Energies, MDPI, vol. 15(4), pages 1-16, February.
    14. García-Triviño, Pablo & Torreglosa, Juan P. & Fernández-Ramírez, Luis M. & Jurado, Francisco, 2016. "Control and operation of power sources in a medium-voltage direct-current microgrid for an electric vehicle fast charging station with a photovoltaic and a battery energy storage system," Energy, Elsevier, vol. 115(P1), pages 38-48.
    15. Ali Jawad Alrubaie & Mohamed Salem & Khalid Yahya & Mahmoud Mohamed & Mohamad Kamarol, 2023. "A Comprehensive Review of Electric Vehicle Charging Stations with Solar Photovoltaic System Considering Market, Technical Requirements, Network Implications, and Future Challenges," Sustainability, MDPI, vol. 15(10), pages 1-26, May.
    16. Zhao, Li & Ke, Hanchen & Li, Yuqi & Chen, Yong, 2023. "Research on personalized charging strategy of electric bus under time-varying constraints," Energy, Elsevier, vol. 276(C).
    17. Alwesabi, Yaseen & Liu, Zhaocai & Kwon, Soongeol & Wang, Yong, 2021. "A novel integration of scheduling and dynamic wireless charging planning models of battery electric buses," Energy, Elsevier, vol. 230(C).
    18. Zhan, Weipeng & Wang, Zhenpo & Zhang, Lei & Liu, Peng & Cui, Dingsong & Dorrell, David G., 2022. "A review of siting, sizing, optimal scheduling, and cost-benefit analysis for battery swapping stations," Energy, Elsevier, vol. 258(C).
    19. Brita Rohrbeck & Kilian Berthold & Felix Hettich, 2018. "Location Planning of Charging Stations for Electric City Buses Considering Battery Ageing Effects," Operations Research Proceedings, in: Natalia Kliewer & Jan Fabian Ehmke & Ralf Borndörfer (ed.), Operations Research Proceedings 2017, pages 701-707, Springer.
    20. Yang, Jun & He, Lifu & Fu, Siyao, 2014. "An improved PSO-based charging strategy of electric vehicles in electrical distribution grid," Applied Energy, Elsevier, vol. 128(C), pages 82-92.
    21. Wu, Xiaomei & Feng, Qijin & Bai, Chenchen & Lai, Chun Sing & Jia, Youwei & Lai, Loi Lei, 2021. "A novel fast-charging stations locational planning model for electric bus transit system," Energy, Elsevier, vol. 224(C).
    22. shafiei, Mohammad & Ghasemi-Marzbali, Ali, 2023. "Electric vehicle fast charging station design by considering probabilistic model of renewable energy source and demand response," Energy, Elsevier, vol. 267(C).
    23. Zhang, Mingze & Li, Weidong & Yu, Samson Shenglong & Wen, Kerui & Zhou, Chen & Shi, Peng, 2021. "A unified configurational optimization framework for battery swapping and charging stations considering electric vehicle uncertainty," Energy, Elsevier, vol. 218(C).
    24. Zhou, Boya & Wu, Ye & Zhou, Bin & Wang, Renjie & Ke, Wenwei & Zhang, Shaojun & Hao, Jiming, 2016. "Real-world performance of battery electric buses and their life-cycle benefits with respect to energy consumption and carbon dioxide emissions," Energy, Elsevier, vol. 96(C), pages 603-613.
    25. Behi, Hamidreza & Karimi, Danial & Jaguemont, Joris & Gandoman, Foad Heidari & Kalogiannis, Theodoros & Berecibar, Maitane & Van Mierlo, Joeri, 2021. "Novel thermal management methods to improve the performance of the Li-ion batteries in high discharge current applications," Energy, Elsevier, vol. 224(C).
    26. Li, Niansi & Liu, Xiaoyong & Yu, Bendong & Li, Liang & Xu, Jianqiang & Tan, Qiong, 2021. "Study on the environmental adaptability of lithium-ion battery powered UAV under extreme temperature conditions," Energy, Elsevier, vol. 219(C).
    27. Yalian Yang & Xiaosong Hu & Datong Qing & Fangyuan Chen, 2013. "Arrhenius Equation-Based Cell-Health Assessment: Application to Thermal Energy Management Design of a HEV NiMH Battery Pack," Energies, MDPI, vol. 6(5), pages 1-17, May.
    28. Du, Jiuyu & Li, Feiqiang & Li, Jianqiu & Wu, Xiaogang & Song, Ziyou & Zou, Yunfei & Ouyang, Minggao, 2019. "Evaluating the technological evolution of battery electric buses: China as a case," Energy, Elsevier, vol. 176(C), pages 309-319.
    29. Mohammed Al-Saadi & Bartosz Patkowski & Maciej Zaremba & Agnieszka Karwat & Mateusz Pol & Łukasz Chełchowski & Joeri Van Mierlo & Maitane Berecibar, 2021. "Slow and Fast Charging Solutions for Li-Ion Batteries of Electric Heavy-Duty Vehicles with Fleet Management Strategies," Sustainability, MDPI, vol. 13(19), pages 1-35, September.
    30. Ayetor, G.K. & Mbonigaba, Innocent & Sunnu, Albert K. & Nyantekyi-Kwakye, Baafour, 2021. "Impact of replacing ICE bus fleet with electric bus fleet in Africa: A lifetime assessment," Energy, Elsevier, vol. 221(C).
    31. Huang, Li & Piontek, Udo & Chen, Mingbiao & Zheng, Rongyue & Zhuang, Lulu & Zou, Deqiu, 2023. "Thermal performance of cold plate based on phase change emulsion for Li-ion battery," Energy, Elsevier, vol. 282(C).
    32. Hartvigsson, Elias & Taljegard, Maria & Odenberger, Mikael & Chen, Peiyuan, 2022. "A large-scale high-resolution geographic analysis of impacts of electric vehicle charging on low-voltage grids," Energy, Elsevier, vol. 261(PA).
    33. Zafar, Muhammad Hamza & Mansoor, Majad & Abou Houran, Mohamad & Khan, Noman Mujeeb & Khan, Kamran & Raza Moosavi, Syed Kumayl & Sanfilippo, Filippo, 2023. "Hybrid deep learning model for efficient state of charge estimation of Li-ion batteries in electric vehicles," Energy, Elsevier, vol. 282(C).
    34. Manzolli, Jônatas Augusto & Trovão, João Pedro F. & Henggeler Antunes, Carlos, 2022. "Electric bus coordinated charging strategy considering V2G and battery degradation," Energy, Elsevier, vol. 254(PA).
    35. Keller, Victor & Lyseng, Benjamin & Wade, Cameron & Scholtysik, Sven & Fowler, McKenzie & Donald, James & Palmer-Wilson, Kevin & Robertson, Bryson & Wild, Peter & Rowe, Andrew, 2019. "Electricity system and emission impact of direct and indirect electrification of heavy-duty transportation," Energy, Elsevier, vol. 172(C), pages 740-751.
    36. Wu, Z. & Guo, F. & Polak, J. & Strbac, G., 2019. "Evaluating grid-interactive electric bus operation and demand response with load management tariff," Applied Energy, Elsevier, vol. 255(C).
    37. Hidab Hamwi & Tom Rushby & Mostafa Mahdy & AbuBakr S. Bahaj, 2022. "Effects of High Ambient Temperature on Electric Vehicle Efficiency and Range: Case Study of Kuwait," Energies, MDPI, vol. 15(9), pages 1-12, April.
    38. Jiang, Ziyue & Han, Jingzuo & Li, Yetong & Chen, Xinyu & Peng, Tianduo & Xiong, Jianliang & Shu, Zhan, 2023. "Charging station layout planning for electric vehicles based on power system flexibility requirements," Energy, Elsevier, vol. 283(C).
    39. Csiszár, Csaba & Csonka, Bálint & Földes, Dávid & Wirth, Ervin & Lovas, Tamás, 2020. "Location optimisation method for fast-charging stations along national roads," Journal of Transport Geography, Elsevier, vol. 88(C).
    40. Foda, Ahmed & Abdelaty, Hatem & Mohamed, Moataz & El-Saadany, Ehab, 2023. "A generic cost-utility-emission optimization for electric bus transit infrastructure planning and charging scheduling," Energy, Elsevier, vol. 277(C).
    41. Lai, Chun Sing & Chen, Dashen & Zhang, Jinning & Zhang, Xin & Xu, Xu & Taylor, Gareth A. & Lai, Loi Lei, 2022. "Profit maximization for large-scale energy storage systems to enable fast EV charging infrastructure in distribution networks," Energy, Elsevier, vol. 259(C).
    42. Mahmoud, Moataz & Garnett, Ryan & Ferguson, Mark & Kanaroglou, Pavlos, 2016. "Electric buses: A review of alternative powertrains," Renewable and Sustainable Energy Reviews, Elsevier, vol. 62(C), pages 673-684.
    43. Kong, Weiwei & Luo, Yugong & Feng, Guixuan & Li, Keqiang & Peng, Huei, 2019. "Optimal location planning method of fast charging station for electric vehicles considering operators, drivers, vehicles, traffic flow and power grid," Energy, Elsevier, vol. 186(C).
    44. Awasthi, Abhishek & Venkitusamy, Karthikeyan & Padmanaban, Sanjeevikumar & Selvamuthukumaran, Rajasekar & Blaabjerg, Frede & Singh, Asheesh K., 2017. "Optimal planning of electric vehicle charging station at the distribution system using hybrid optimization algorithm," Energy, Elsevier, vol. 133(C), pages 70-78.
    45. Wang, Jing & Kang, Lixia & Liu, Yongzhong, 2020. "Optimal scheduling for electric bus fleets based on dynamic programming approach by considering battery capacity fade," Renewable and Sustainable Energy Reviews, Elsevier, vol. 130(C).
    46. Lim, Lek Keng & Muis, Zarina Ab & Ho, Wai Shin & Hashim, Haslenda & Bong, Cassendra Phun Chien, 2023. "Review of the energy forecasting and scheduling model for electric buses," Energy, Elsevier, vol. 263(PD).
    47. Krzysztof Zagrajek & Józef Paska & Mariusz Kłos & Karol Pawlak & Piotr Marchel & Magdalena Bartecka & Łukasz Michalski & Paweł Terlikowski, 2020. "Impact of Electric Bus Charging on Distribution Substation and Local Grid in Warsaw," Energies, MDPI, vol. 13(5), pages 1-13, March.
    48. Wellik, T.K. & Griffin, J.R. & Kockelman, K.M. & Mohamed, M., 2021. "Utility-transit nexus: Leveraging intelligently charged electrified transit to support a renewable energy grid," Renewable and Sustainable Energy Reviews, Elsevier, vol. 139(C).
    49. Rajani, B. & Kommula, Bapayya Naidu, 2022. "An optimal energy management among the electric vehicle charging stations and electricity distribution system using GPC-RERNN approach," Energy, Elsevier, vol. 245(C).
    50. Shi, Junzhe & Zeng, Teng & Moura, Scott, 2023. "Electric fleet charging management considering battery degradation and nonlinear charging profile," Energy, Elsevier, vol. 283(C).
    51. Babaeiyazdi, Iman & Rezaei-Zare, Afshin & Shokrzadeh, Shahab, 2021. "State of charge prediction of EV Li-ion batteries using EIS: A machine learning approach," Energy, Elsevier, vol. 223(C).
    52. Hamza El Hafdaoui & Hamza El Alaoui & Salma Mahidat & Zakaria El Harmouzi & Ahmed Khallaayoun, 2023. "Impact of Hot Arid Climate on Optimal Placement of Electric Vehicle Charging Stations," Energies, MDPI, vol. 16(2), pages 1-19, January.
    53. Syed Muhammad Arif & Tek Tjing Lie & Boon Chong Seet & Syed Muhammad Ahsan & Hassan Abbas Khan, 2020. "Plug-In Electric Bus Depot Charging with PV and ESS and Their Impact on LV Feeder," Energies, MDPI, vol. 13(9), pages 1-16, April.
    54. Yuping Lin & Kai Zhang & Zuo-Jun Max Shen & Lixin Miao, 2019. "Charging Network Planning for Electric Bus Cities: A Case Study of Shenzhen, China," Sustainability, MDPI, vol. 11(17), pages 1-27, August.
    55. Pirouzi, Sasan & Aghaei, Jamshid & Niknam, Taher & Farahmand, Hossein & Korpås, Magnus, 2018. "Exploring prospective benefits of electric vehicles for optimal energy conditioning in distribution networks," Energy, Elsevier, vol. 157(C), pages 679-689.
    56. Gao, Yizhao & Zhu, Chong & Zhang, Xi & Guo, Bangjun, 2021. "Implementation and evaluation of a practical electrochemical- thermal model of lithium-ion batteries for EV battery management system," Energy, Elsevier, vol. 221(C).
    57. Burke, Andrew & Miller, Marshall & Zhao, Hemgbing, 2012. "Fast Charging Tests (up to 6C) of Lithium Titanate Cells and Modules: Electrical and Thermal Response," Institute of Transportation Studies, Working Paper Series qt63286026, Institute of Transportation Studies, UC Davis.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Kayhan Alamatsaz & Sadam Hussain & Chunyan Lai & Ursula Eicker, 2022. "Electric Bus Scheduling and Timetabling, Fast Charging Infrastructure Planning, and Their Impact on the Grid: A Review," Energies, MDPI, vol. 15(21), pages 1-39, October.
    2. Boud Verbrugge & Mohammed Mahedi Hasan & Haaris Rasool & Thomas Geury & Mohamed El Baghdadi & Omar Hegazy, 2021. "Smart Integration of Electric Buses in Cities: A Technological Review," Sustainability, MDPI, vol. 13(21), pages 1-23, November.
    3. Manzolli, Jônatas Augusto & Trovão, João Pedro & Antunes, Carlos Henggeler, 2022. "A review of electric bus vehicles research topics – Methods and trends," Renewable and Sustainable Energy Reviews, Elsevier, vol. 159(C).
    4. Zhou, Yu & Wang, Hua & Wang, Yun & Yu, Bin & Tang, Tianpei, 2024. "Charging facility planning and scheduling problems for battery electric bus systems: A comprehensive review," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 183(C).
    5. Shehabeldeen, Ali & Foda, Ahmed & Mohamed, Moataz, 2024. "A multi-stage optimization of battery electric bus transit with battery degradation," Energy, Elsevier, vol. 299(C).
    6. Lim, Lek Keng & Muis, Zarina Ab & Ho, Wai Shin & Hashim, Haslenda & Bong, Cassendra Phun Chien, 2023. "Review of the energy forecasting and scheduling model for electric buses," Energy, Elsevier, vol. 263(PD).
    7. Foda, Ahmed & Abdelaty, Hatem & Mohamed, Moataz & El-Saadany, Ehab, 2023. "A generic cost-utility-emission optimization for electric bus transit infrastructure planning and charging scheduling," Energy, Elsevier, vol. 277(C).
    8. Basma, Hussein & Mansour, Charbel & Haddad, Marc & Nemer, Maroun & Stabat, Pascal, 2023. "A novel method for co-optimizing battery sizing and charging strategy of battery electric bus fleets: An application to the city of Paris," Energy, Elsevier, vol. 285(C).
    9. Foda, Ahmed & Mohamed, Moataz, 2024. "The impacts of optimization approaches on BEB system configuration in transit," Transport Policy, Elsevier, vol. 151(C), pages 12-23.
    10. Say, Kelvin & Csereklyei, Zsuzsanna & Brown, Felix Gabriel & Wang, Changlong, 2024. "The economics of public transport electrification: The charging dilemma," Energy Economics, Elsevier, vol. 135(C).
    11. Hatem Abdelaty & Moataz Mohamed, 2021. "A Prediction Model for Battery Electric Bus Energy Consumption in Transit," Energies, MDPI, vol. 14(10), pages 1-26, May.
    12. Basma, Hussein & Mansour, Charbel & Haddad, Marc & Nemer, Maroun & Stabat, Pascal, 2022. "Energy consumption and battery sizing for different types of electric bus service," Energy, Elsevier, vol. 239(PE).
    13. Avenali, Alessandro & Catalano, Giuseppe & Giagnorio, Mirko & Matteucci, Giorgio, 2024. "Factors influencing the adoption of zero-emission buses: A review-based framework," Renewable and Sustainable Energy Reviews, Elsevier, vol. 197(C).
    14. Xiaowei Ding & Weige Zhang & Shaoyuan Wei & Zhenpo Wang, 2021. "Optimization of an Energy Storage System for Electric Bus Fast-Charging Station," Energies, MDPI, vol. 14(14), pages 1-17, July.
    15. Zhang, Rui & Yu, Jilai, 2024. "Evaluating multi-dimensional response capability of electric bus considering carbon emissions and traffic index," Energy, Elsevier, vol. 286(C).
    16. Zhou, Guangyou & Zhu, Zhiwei & Luo, Sumei, 2022. "Location optimization of electric vehicle charging stations: Based on cost model and genetic algorithm," Energy, Elsevier, vol. 247(C).
    17. Basma, Hussein & Haddad, Marc & Mansour, Charbel & Nemer, Maroun & Stabat, Pascal, 2022. "Evaluation of the techno-economic performance of battery electric buses: Case study of a bus line in paris," Research in Transportation Economics, Elsevier, vol. 95(C).
    18. Ahmed Foda & Moataz Mohamed & Hany Farag & Ehab El-Saadany, 2023. "A resilient battery electric bus transit system configuration," Nature Communications, Nature, vol. 14(1), pages 1-15, December.
    19. Wu, Xiaomei & Feng, Qijin & Bai, Chenchen & Lai, Chun Sing & Jia, Youwei & Lai, Loi Lei, 2021. "A novel fast-charging stations locational planning model for electric bus transit system," Energy, Elsevier, vol. 224(C).
    20. Hatem Abdelaty & Ahmed Foda & Moataz Mohamed, 2023. "The Robustness of Battery Electric Bus Transit Networks under Charging Infrastructure Disruptions," Sustainability, MDPI, vol. 15(4), pages 1-25, February.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:energy:v:300:y:2024:i:c:s0360544224013379. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.