IDEAS home Printed from https://ideas.repec.org/a/eee/telpol/v43y2019i83.html
   My bibliography  Save this article

Nexus between telecommunication infrastructures, economic growth and development in Africa: Panel vector autoregression (P-VAR) analysis

Author

Listed:
  • David, Oladipo Olalekan

Abstract

This study examines the causal-effect relationship between telecommunication infrastructures, economic growth and development in selected African countries. It further estimates the trivariate impacts of telecommunication infrastructures, economic growth and development in the region. The analysis considers a panel of forty-six African countries from 2000 to 2015. To measure economic growth, real gross domestic product serves as the proxy, while economic development is measured by the Human Development Index, and telecommunication infrastructures by a composite index of telecommunication computed from mobile line, fixed line and internet access penetration via principal component analysis (PCA). The empirical results suggest the existence of a bidirectional long-run relationship between telecommunication infrastructures, economic growth and development. The causality tests reveal that there is feedback causality between telecommunication infrastructures, economic growth and development. Telecommunication infrastructures promote economic growth and development in Africa and vice versa. Thus, there is need to promote inclusive and holistic policies that will enhance digital provide, economic growth and development simultaneously in Africa. An increase in telecommunication infrastructures will encourage aggregate output and standard of living to move in the same direction in Africa.

Suggested Citation

  • David, Oladipo Olalekan, 2019. "Nexus between telecommunication infrastructures, economic growth and development in Africa: Panel vector autoregression (P-VAR) analysis," Telecommunications Policy, Elsevier, vol. 43(8), pages 1-1.
  • Handle: RePEc:eee:telpol:v:43:y:2019:i:8:3
    DOI: 10.1016/j.telpol.2019.03.005
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0308596118302088
    Download Restriction: Full text for ScienceDirect subscribers only

    File URL: https://libkey.io/10.1016/j.telpol.2019.03.005?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. Romer, Paul M, 1986. "Increasing Returns and Long-run Growth," Journal of Political Economy, University of Chicago Press, vol. 94(5), pages 1002-1037, October.
    2. Rao, B. Bhaskara, 2010. "Estimates of the steady state growth rates for selected Asian countries with an extended Solow model," Economic Modelling, Elsevier, vol. 27(1), pages 46-53, January.
    3. Kanwal Zahra & Pervez Azim & Afzal Mahmood, 2008. "Telecommunication Infrastructure Development and Economic Growth: A Panel Data Approach," The Pakistan Development Review, Pakistan Institute of Development Economics, vol. 47(4), pages 711-726.
    4. Pesaran, M. H. & Shin, Y. & Smith, R. J., 1996. "Testing for the 'Existence of a Long-run Relationship'," Cambridge Working Papers in Economics 9622, Faculty of Economics, University of Cambridge.
    5. Robert M. Solow, 1956. "A Contribution to the Theory of Economic Growth," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 70(1), pages 65-94.
    6. Dumitrescu, Elena-Ivona & Hurlin, Christophe, 2012. "Testing for Granger non-causality in heterogeneous panels," Economic Modelling, Elsevier, vol. 29(4), pages 1450-1460.
    7. Maria Cracolici & Miranda Cuffaro & Peter Nijkamp, 2010. "The Measurement of Economic, Social and Environmental Performance of Countries: A Novel Approach," Social Indicators Research: An International and Interdisciplinary Journal for Quality-of-Life Measurement, Springer, vol. 95(2), pages 339-356, January.
    8. Dinc, Mustafa & Haynes, Kingsley E & Stough, Roger R & Yilmaz, Serdar, 1998. "Regional universal telecommunication service provisions in the US: Efficiency versus penetration," Telecommunications Policy, Elsevier, vol. 22(6), pages 541-553, July.
    9. T. W. Swan, 1956. "ECONOMIC GROWTH and CAPITAL ACCUMULATION," The Economic Record, The Economic Society of Australia, vol. 32(2), pages 334-361, November.
    10. Pradhan, Rudra P. & Arvin, Mak B. & Norman, Neville R. & Bele, Samadhan K., 2014. "Economic growth and the development of telecommunications infrastructure in the G-20 countries: A panel-VAR approach," Telecommunications Policy, Elsevier, vol. 38(7), pages 634-649.
    11. M. Hashem Pesaran & Yongcheol Shin & Richard J. Smith, 2001. "Bounds testing approaches to the analysis of level relationships," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 16(3), pages 289-326.
    12. Aghion, Philippe & Howitt, Peter, 1992. "A Model of Growth through Creative Destruction," Econometrica, Econometric Society, vol. 60(2), pages 323-351, March.
    13. Jenny C. Aker & Isaac M. Mbiti, 2010. "Mobile Phones and Economic Development in Africa," Journal of Economic Perspectives, American Economic Association, vol. 24(3), pages 207-232, Summer.
    14. Cronin, Francis J. & Colleran, Elisabeth K. & Herbert, Paul L. & Lewitzky, Steven, 1993. "Telecommunications and growth : The contribution of telecommunications infrastructure investment to aggregate and sectoral productivity," Telecommunications Policy, Elsevier, vol. 17(9), pages 677-690, December.
    15. Im, Kyung So & Pesaran, M. Hashem & Shin, Yongcheol, 2003. "Testing for unit roots in heterogeneous panels," Journal of Econometrics, Elsevier, vol. 115(1), pages 53-74, July.
    16. Lam, Pun-Lee & Shiu, Alice, 2010. "Economic growth, telecommunications development and productivity growth of the telecommunications sector: Evidence around the world," Telecommunications Policy, Elsevier, vol. 34(4), pages 185-199, May.
    17. Anusua Datta & Sumit Agarwal, 2004. "Telecommunications and economic growth: a panel data approach," Applied Economics, Taylor & Francis Journals, vol. 36(15), pages 1649-1654.
    18. World Bank, 2016. "World Development Indicators 2016," World Bank Publications - Books, The World Bank Group, number 23969, December.
    19. Dholakia, Ruby Roy & Harlam, Bari, 1994. "Telecommunications and economic development: Econometric analysis of the US experience," Telecommunications Policy, Elsevier, vol. 18(6), pages 470-477, August.
    20. Engle, Robert & Granger, Clive, 2015. "Co-integration and error correction: Representation, estimation, and testing," Applied Econometrics, Russian Presidential Academy of National Economy and Public Administration (RANEPA), vol. 39(3), pages 106-135.
    21. Portugal-Perez, Alberto & Wilson, John S., 2012. "Export Performance and Trade Facilitation Reform: Hard and Soft Infrastructure," World Development, Elsevier, vol. 40(7), pages 1295-1307.
    22. Kumar, Ronald Ravinesh & Kumar, Radika Devi & Patel, Arvind, 2015. "Accounting for telecommunications contribution to economic growth: A study of Small Pacific Island States," Telecommunications Policy, Elsevier, vol. 39(3), pages 284-295.
    23. Correa, Lisa, 2006. "The economic impact of telecommunications diffusion on UK productivity growth," Information Economics and Policy, Elsevier, vol. 18(4), pages 385-404, November.
    24. Lestage, Romain & Flacher, David & Kim, Yeonbae & Kim, Jihwan & Kim, Yunhee, 2013. "Competition and investment in telecommunications: Does competition have the same impact on investment by private and state-owned firms?," Information Economics and Policy, Elsevier, vol. 25(1), pages 41-50.
    25. Norton, Seth W, 1992. "Transaction Costs, Telecommunications, and the Microeconomics of Macroeconomic Growth," Economic Development and Cultural Change, University of Chicago Press, vol. 41(1), pages 175-196, October.
    26. Wellenius, Björn, 1977. "Telecommunications in developing countries," Telecommunications Policy, Elsevier, vol. 1(4), pages 289-297, September.
    27. Leff, Nathaniel H, 1984. "Externalities, Information Costs, and Social Benefit-Cost Analysis for Economic Development: An Example from Telecommunications," Economic Development and Cultural Change, University of Chicago Press, vol. 32(2), pages 255-276, January.
    28. N. Gregory Mankiw & David Romer & David N. Weil, 1992. "A Contribution to the Empirics of Economic Growth," The Quarterly Journal of Economics, Oxford University Press, vol. 107(2), pages 407-437.
    29. Barro, Robert J, 1990. "Government Spending in a Simple Model of Endogenous Growth," Journal of Political Economy, University of Chicago Press, vol. 98(5), pages 103-126, October.
    30. Alice Shiu & Pun-Lee Lam, 2008. "Causal Relationship between Telecommunications and Economic Growth in China and its Regions," Regional Studies, Taylor & Francis Journals, vol. 42(5), pages 705-718.
    31. Lucas, Robert Jr., 1988. "On the mechanics of economic development," Journal of Monetary Economics, Elsevier, vol. 22(1), pages 3-42, July.
    32. Sunday Mauton A. Posu, 2006. "Information and Communication Technologies in the Nigerian Economy," Papers of the Annual IUE-SUNY Cortland Conference in Economics, in: Oguz Esen & Ayla Ogus (ed.), Proceedings of the Conference on Human and Economic Resources, pages 327-337, Izmir University of Economics.
    33. Hardy, Andrew P., 1980. "The role of the telephone in economic development," Telecommunications Policy, Elsevier, vol. 4(4), pages 278-286, December.
    34. Gene M. Grossman & Elhanan Helpman, 1994. "Endogenous Innovation in the Theory of Growth," Journal of Economic Perspectives, American Economic Association, vol. 8(1), pages 23-44, Winter.
    35. Raul Katz, 2009. "The economic and social impact of telecommunications output," Intereconomics: Review of European Economic Policy, Springer;ZBW - Leibniz Information Centre for Economics;Centre for European Policy Studies (CEPS), vol. 44(1), pages 41-48, January.
    36. Pradhan, Rudra P. & Arvin, Mak B. & Hall, John H., 2016. "Economic growth, development of telecommunications infrastructure, and financial development in Asia, 1991–2012," The Quarterly Review of Economics and Finance, Elsevier, vol. 59(C), pages 25-38.
    37. Neumayer, Eric, 2001. "The human development index and sustainability -- a constructive proposal," Ecological Economics, Elsevier, vol. 39(1), pages 101-114, October.
    38. Cronin, Francis J. & Parker, Edwin B. & Colleran, Elisabeth K. & Gold, Mark A., 1991. "Telecommunications infrastructure and economic growth : An analysis of causality," Telecommunications Policy, Elsevier, vol. 15(6), pages 529-535, December.
    39. Olusegun Ayodele Akanbi, 2015. "Structural and Institutional Determinants of Poverty in Sub-Saharan African Countries," Journal of Human Development and Capabilities, Taylor & Francis Journals, vol. 16(1), pages 122-141, February.
    40. Madden, Gary & Savage, Scott J., 1998. "CEE telecommunications investment and economic growth," Information Economics and Policy, Elsevier, vol. 10(2), pages 173-195, June.
    41. Ronald R. Kumar & Radika Kumar, 2012. "Exploring the Nexus between Information and Communications Technology, Tourism and Growth in Fiji," Tourism Economics, , vol. 18(2), pages 359-371, April.
    42. Ronald Kumar, 2014. "Exploring the role of technology, tourism and financial development: an empirical study of Vietnam," Quality & Quantity: International Journal of Methodology, Springer, vol. 48(5), pages 2881-2898, September.
    43. Shahiduzzaman, Md. & Alam, Khorshed, 2014. "Information technology and its changing roles to economic growth and productivity in Australia," Telecommunications Policy, Elsevier, vol. 38(2), pages 125-135.
    44. Peter Perkins & Johann Fedderke & John Luiz, 2005. "An Analysis Of Economic Infrastructure Investment In South Africa," South African Journal of Economics, Economic Society of South Africa, vol. 73(2), pages 211-228, June.
    45. Srinivasan, T N, 1994. "Human Development: A New Paradigm or Reinvention of the Wheel?," American Economic Review, American Economic Association, vol. 84(2), pages 238-243, May.
    46. Levin, Andrew & Lin, Chien-Fu & James Chu, Chia-Shang, 2002. "Unit root tests in panel data: asymptotic and finite-sample properties," Journal of Econometrics, Elsevier, vol. 108(1), pages 1-24, May.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Abdulqadir, Idris & Asongu, Simplice, 2021. "The asymmetric effect of internet access on economic growth in sub-Saharan Africa: Insight from a dynamic panel threshold regression," MPRA Paper 109904, University Library of Munich, Germany.
    2. Yifeng Philip Chen & Edward J. Oughton & Jakub Zagdanski & Maggie Mo Jia & Peter Tyler, 2023. "Crowdsourced data indicates broadband has a positive impact on local business creation," Papers 2308.14734, arXiv.org.
    3. Saba, Charles Shaaba & David, Oladipo Olalekan, 2020. "Convergence patterns in global ICT: Fresh insights from a club clustering algorithm," Telecommunications Policy, Elsevier, vol. 44(10).
    4. Abdulqadir, Idris A. & Asongu, Simplice A., 2022. "The asymmetric effect of internet access on economic growth in sub-Saharan Africa," Economic Analysis and Policy, Elsevier, vol. 73(C), pages 44-61.
    5. Danish, & Khan, Salahuddin & Haneklaus, Nils, 2023. "Sustainable economic development across globe: The dynamics between technology, digital trade and economic performance," Technology in Society, Elsevier, vol. 72(C).
    6. Renata Činčikaitė & Ieva Meidutė-Kavaliauskienė, 2022. "An Integrated Assessment of the Competitiveness of a Sustainable City within the Context of the COVID-19 Impact," Sustainability, MDPI, vol. 14(13), pages 1-19, June.
    7. Li, Yutao & Zhang, Jinning & Lyu, Yanwei, 2023. "Does telecommunications infrastructure promote entrepreneurship in developing countries? Evidence from a quasi-natural experiment in China," Structural Change and Economic Dynamics, Elsevier, vol. 66(C), pages 106-119.
    8. Davidmac O. Ekeocha & Jonathan E. Ogbuabor & Anthony Orji, 2022. "Public infrastructural development and economic performance in Africa: a new evidence from panel data analysis," Economic Change and Restructuring, Springer, vol. 55(2), pages 931-950, May.
    9. Recep Ulucak & Danish & Salah Ud‐Din Khan, 2020. "Does information and communication technology affect CO2 mitigation under the pathway of sustainable development during the mode of globalization?," Sustainable Development, John Wiley & Sons, Ltd., vol. 28(4), pages 857-867, July.
    10. Feng, Yuan & Chen, Zhi & Nie, Changfei, 2023. "The effect of broadband infrastructure construction on urban green innovation: Evidence from a quasi-natural experiment in China," Economic Analysis and Policy, Elsevier, vol. 77(C), pages 581-598.
    11. Huwei Wen & Jinxia Zhan, 2023. "New-type infrastructure and total factor productivity: evidence from listed manufacturing firms in China," Economic Change and Restructuring, Springer, vol. 56(6), pages 4465-4489, December.
    12. Getachew Jenber Feleke & Prof. Jiong Gong, 2022. "Impact of Information Communication Technology Infrastructure and Energy on Industrial Value-added Growth of Africa," International Journal of Science and Business, IJSAB International, vol. 13(1), pages 45-61.
    13. Kuti Ayomide Oluwafunmisho & Aderogba Taiwo Adebusuyi & Ezenwa Ndubuisi Johnbosco & Quadri Rasheed Adegboyega, 2023. "Catalysts of Economic Welfare in Africa: A Cross-Sectional Autoregressive Distributed Lag Approach," Acta Universitatis Sapientiae, Economics and Business, Sciendo, vol. 11(1), pages 18-41, October.
    14. Charles Shaaba Saba & Nicholas Ngepah, 2022. "Nexus between telecommunication infrastructures, defence and economic growth: a global evidence," Netnomics, Springer, vol. 22(2), pages 139-177, October.
    15. Charles Shaaba Saba & Oladipo Olalekan David, 2023. "Identifying Convergence in Telecommunication Infrastructures and the Dynamics of Their Influencing Factors Across Countries," Journal of the Knowledge Economy, Springer;Portland International Center for Management of Engineering and Technology (PICMET), vol. 14(2), pages 1413-1466, June.
    16. Charles Shaaba Saba & Nicholas Ngepah, 2021. "Nexus between telecommunication infrastructures, defence and economic growth: a global evidence," Netnomics, Springer, vol. 22(2), pages 139-177, December.
    17. Saba, Charles S., 2023. "Investigation of Telecommunication Infrastructures-Industrialisation-Growth Nexus: Evidence from Disaggregated Panel Data Analysis," Economia Internazionale / International Economics, Camera di Commercio Industria Artigianato Agricoltura di Genova, vol. 76(2), pages 209-264.
    18. Philip Chen & Edward J Oughton & Pete Tyler & Mo Jia & Jakub Zagdanski, 2020. "Evaluating the impact of next generation broadband on local business creation," Papers 2010.14113, arXiv.org.
    19. Saba, Charles Shaaba, 2021. "Convergence and transition paths in transportation: Fresh insights from a club clustering algorithm," Transport Policy, Elsevier, vol. 112(C), pages 80-93.
    20. Charles Shaaba Saba & Nicholas Ngepah, 2022. "ICT Diffusion, Industrialisation and Economic Growth Nexus: an International Cross-country Analysis," Journal of the Knowledge Economy, Springer;Portland International Center for Management of Engineering and Technology (PICMET), vol. 13(3), pages 2030-2069, September.

    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. Charles Shaaba Saba & Nicholas Ngepah, 2021. "Nexus between telecommunication infrastructures, defence and economic growth: a global evidence," Netnomics, Springer, vol. 22(2), pages 139-177, December.
    2. Charles Shaaba Saba & Nicholas Ngepah, 2022. "Nexus between telecommunication infrastructures, defence and economic growth: a global evidence," Netnomics, Springer, vol. 22(2), pages 139-177, October.
    3. Kumar, Ronald Ravinesh & Kumar, Radika Devi & Patel, Arvind, 2015. "Accounting for telecommunications contribution to economic growth: A study of Small Pacific Island States," Telecommunications Policy, Elsevier, vol. 39(3), pages 284-295.
    4. Ronald Ravinesh Kumar & Peter Josef Stauvermann & Syed Jawad Hussain Shahzad, 2017. "Can technology provide a glimmer of hope for economic growth in the midst of chaos? A case of Zimbabwe," Quality & Quantity: International Journal of Methodology, Springer, vol. 51(2), pages 919-939, March.
    5. Kumar, Ronald Ravinesh & Stauvermann, Peter Josef & Samitas, Aristeidis, 2016. "The effects of ICT⁎ on output per worker: A study of the Chinese economy," Telecommunications Policy, Elsevier, vol. 40(2), pages 102-115.
    6. Bessan Ayédoun, Eudoxie & Ayédoun, Christian, 2020. "Développement des Infrastructures de Télécommunication et Croissance Economique dans les Pays de l’UEMOA: une Analyse de la Causalité sur Données de Panel à partir d’un VECM [Telecommunication Infr," MPRA Paper 104459, University Library of Munich, Germany, revised 01 Feb 2021.
    7. Ronald Ravinesh Kumar & Peter Josef Stauvermann & Nikeel Kumar & Syed Jawad Hussain Shahzad, 2019. "Exploring the effect of ICT and tourism on economic growth: a study of Israel," Economic Change and Restructuring, Springer, vol. 52(3), pages 221-254, August.
    8. Pradhan, Rudra P. & Arvin, Mak B. & Norman, Neville R. & Bele, Samadhan K., 2014. "Economic growth and the development of telecommunications infrastructure in the G-20 countries: A panel-VAR approach," Telecommunications Policy, Elsevier, vol. 38(7), pages 634-649.
    9. Ward, Michael R. & Zheng, Shilin, 2016. "Mobile telecommunications service and economic growth: Evidence from China," Telecommunications Policy, Elsevier, vol. 40(2), pages 89-101.
    10. Rudra P. Pradhan, Mak B. Arvin, & Mahendhiran Nair, Jay Mittal, & Neville R. Norman, 2017. "Telecommunications infrastructure and usage and the FDI–growth nexus: evidence from Asian-21 countries "Abstract: This paper examines causal relationships between telecommunications infrastructur," Department of Economics - Working Papers Series 2032, The University of Melbourne.
    11. Pradhan, Rudra P. & Arvin, Mak B. & Norman, Neville R., 2015. "The dynamics of information and communications technologies infrastructure, economic growth, and financial development: Evidence from Asian countries," Technology in Society, Elsevier, vol. 42(C), pages 135-149.
    12. Charles Shaaba Saba & Nicholas Ngepah, 2022. "ICT Diffusion, Industrialisation and Economic Growth Nexus: an International Cross-country Analysis," Journal of the Knowledge Economy, Springer;Portland International Center for Management of Engineering and Technology (PICMET), vol. 13(3), pages 2030-2069, September.
    13. Ronald Kumar & Madhukar Singh, 2014. "Role of health expenditure and ICT in a small island economy: a study of Fiji," Quality & Quantity: International Journal of Methodology, Springer, vol. 48(4), pages 2295-2311, July.
    14. Ward, Michael R. & Zheng, Shilin, 2014. "Mobile telecommunications infrastructure and economic growth: Evidence from China," 25th European Regional ITS Conference, Brussels 2014 101405, International Telecommunications Society (ITS).
    15. Abdulqadir, Idris A. & Asongu, Simplice A., 2022. "The asymmetric effect of internet access on economic growth in sub-Saharan Africa," Economic Analysis and Policy, Elsevier, vol. 73(C), pages 44-61.
    16. Saba, Charles Shaaba & David, Oladipo Olalekan, 2020. "Convergence patterns in global ICT: Fresh insights from a club clustering algorithm," Telecommunications Policy, Elsevier, vol. 44(10).
    17. Sang H. Lee & John Levendis & Luis Gutierrez, 2012. "Telecommunications and economic growth: an empirical analysis of sub-Saharan Africa," Applied Economics, Taylor & Francis Journals, vol. 44(4), pages 461-469, February.
    18. Gómez-Barroso, José Luis & Marbán-Flores, Raquel, 2020. "Telecommunications and economic development – The 21st century: Making the evidence stronger," Telecommunications Policy, Elsevier, vol. 44(2).
    19. Kallal, Rahim & Haddaji, Abir & Ftiti, Zied, 2021. "ICT diffusion and economic growth: Evidence from the sectorial analysis of a periphery country," Technological Forecasting and Social Change, Elsevier, vol. 162(C).
    20. António Madureira & Nico Baken & Harry Bouwman, 2011. "Value of digital information networks: a holonic framework," Netnomics, Springer, vol. 12(1), pages 1-30, April.

    More about this item

    Keywords

    Telecommunication infrastructures; Economic growth-development; Panel causality; Principal component analysis (PCA); Variance decomposition and impulse response analysis;
    All these keywords.

    JEL classification:

    • L96 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Telecommunications
    • O10 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - General
    • O40 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - General
    • C23 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Models with Panel Data; Spatio-temporal Models
    • C38 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Classification Methdos; Cluster Analysis; Principal Components; Factor Analysis
    • C20 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - General

    Statistics

    Access and download statistics

    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:telpol:v:43:y:2019:i:8:3. 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.elsevier.com/wps/find/journaldescription.cws_home/30471/description#description .

    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.