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The asymmetric effect of internet access on economic growth in sub-Saharan Africa: Insight from a dynamic panel threshold regression

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  • Idris A. Abdulqadir

    (Federal University Dutse, Dutse, Nigeria)

  • Simplice A. Asongu

    (Yaoundé, Cameroon)

Abstract

This article investigates the asymmetric effect of internet access (index of the internet) on economic growth in 42 sub-Saharan African (SSA) countries over the period 2008-2018. The estimation procedure is obtained following a dynamic panel threshold regression technique via 1000 bootstrap replications and the 400 grids search developed by Hansen (1996, 1999, 2000). The investigation first explores the presence of inflection points in the relationship between internet access and economic growth through the application of Hansen's threshold models. The finding from the nonlinearity threshold model revealed a significant internet threshold-effect of 3.55 percent for growth. The article also examines the linear short-run effect of internet access on economic growth while controlling for the effects of private sector credit, trade openness, government regulation, and tariff regimes. The marginal effect of internet access is evaluated at the minimum, and the maximum levels of government regulation and tariffs regime are positive. On the other hand, the minimum and maximum levels of private sector credit and trade openness are negative via the interaction terms. The article advances the literature by its nonlinear transformation of the relevance of internet access on economic growth by exploring interactive mechanisms of: internet access versus financial resource, internet access versus trade, internet access versus government regulation, and internet access versus the tariff regimes from end-user subscriptions. In policy terms, the statistical significance of the joint impact of government regulations and tariff regimes is relevant in the operation of the telecommunication industry in SSA countries.

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  • Idris A. Abdulqadir & Simplice A. Asongu, 2021. "The asymmetric effect of internet access on economic growth in sub-Saharan Africa: Insight from a dynamic panel threshold regression," Working Papers 21/014, European Xtramile Centre of African Studies (EXCAS).
  • Handle: RePEc:exs:wpaper:21/014
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    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. Vanessa S. Tchamyou & Simplice A. Asongu, 2017. "Information Sharing and Financial Sector Development in Africa," Journal of African Business, Taylor & Francis Journals, vol. 18(1), pages 24-49, January.
    3. Ford, George S., 2018. "Is faster better? Quantifying the relationship between broadband speed and economic growth," Telecommunications Policy, Elsevier, vol. 42(9), pages 766-777.
    4. Lars-Hendrik Roller & Leonard Waverman, 2001. "Telecommunications Infrastructure and Economic Development: A Simultaneous Approach," American Economic Review, American Economic Association, vol. 91(4), pages 909-923, September.
    5. Asongu, Simplice A. & Nwachukwu, Jacinta C., 2016. "The role of governance in mobile phones for inclusive human development in Sub-Saharan Africa," Technovation, Elsevier, vol. 55, pages 1-13.
    6. Vanessa Simen Tchamyou, 2020. "Education, lifelong learning, inequality and financial access: evidence from African countries," Contemporary Social Science, Taylor & Francis Journals, vol. 15(1), pages 7-25, January.
    7. Thompson, Herbert Jr. & Garbacz, Christopher, 2007. "Mobile, fixed line and Internet service effects on global productive efficiency," Information Economics and Policy, Elsevier, vol. 19(2), pages 189-214, June.
    8. Asongu, Simplice A. & Odhiambo, Nicholas M., 2020. "Inequality and gender inclusion: Minimum ICT policy thresholds for promoting female employment in Sub-Saharan Africa," Telecommunications Policy, Elsevier, vol. 44(4).
    9. Boateng, Agyenim & Asongu, Simplice & Akamavi, Raphael & Tchamyou, Vanessa, 2018. "Information asymmetry and market power in the African banking industry," Journal of Multinational Financial Management, Elsevier, vol. 44(C), pages 69-83.
    10. Tchamyou, Vanessa S. & Erreygers, Guido & Cassimon, Danny, 2019. "Inequality, ICT and financial access in Africa," Technological Forecasting and Social Change, Elsevier, vol. 139(C), pages 169-184.
    11. Arellano, Manuel & Bover, Olympia, 1995. "Another look at the instrumental variable estimation of error-components models," Journal of Econometrics, Elsevier, vol. 68(1), pages 29-51, July.
    12. 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.
    13. Hansen, Bruce E., 1999. "Threshold effects in non-dynamic panels: Estimation, testing, and inference," Journal of Econometrics, Elsevier, vol. 93(2), pages 345-368, December.
    14. Freund, Caroline L. & Weinhold, Diana, 2004. "The effect of the Internet on international trade," Journal of International Economics, Elsevier, vol. 62(1), pages 171-189, January.
    15. David Roodman, 2009. "How to do xtabond2: An introduction to difference and system GMM in Stata," Stata Journal, StataCorp LP, vol. 9(1), pages 86-136, March.
    16. Simplice A. Asongu & Jacinta C. Nwachukwu, 2016. "Foreign aid and governance in Africa," International Review of Applied Economics, Taylor & Francis Journals, vol. 30(1), pages 69-88, January.
    17. Robert J. Barro, 1998. "Determinants of Economic Growth: A Cross-Country Empirical Study," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262522543.
    18. Ibrahim Kholilul Rohman & Erik Bohlin, 2012. "Does broadband speed really matter as a driver of economic growth? Investigating OECD countries," International Journal of Management and Network Economics, Inderscience Enterprises Ltd, vol. 2(4), pages 336-356.
    19. Kimaro, Edmund Lawrence & Keong, Choong Chee & Sea, Lau Lin, 2017. "Government Expenditure, Efficiency and Economic Growth: A Panel Analysis of Sub Saharan African Low Income Countries," African Journal of Economic Review, African Journal of Economic Review, vol. 5(2), July.
    20. Idris Abdullahi Abdulqadir & Soo Y. Chua, 2020. "Asymmetric impact of exchange rate pass-through into employees' wages in sub-Saharan Africa: panel non-linear threshold estimation," Journal of Economic Studies, Emerald Group Publishing, vol. 47(7), pages 1629-1647, April.
    21. Robb, Genna & Hawthorne, Ryan, 2019. "Net neutrality and market power: The case of South Africa," Telecommunications Policy, Elsevier, vol. 43(9).
    22. Vanessa Simen Tchamyou, 2017. "The Role of Knowledge Economy in African Business," Journal of the Knowledge Economy, Springer;Portland International Center for Management of Engineering and Technology (PICMET), vol. 8(4), pages 1189-1228, December.
    23. Aguilar, Diego & Agüero, Aileen & Barrantes, Roxana, 2020. "Network effects in mobile telecommunications markets: A comparative analysis of consumers' preferences in five Latin American countries," Telecommunications Policy, Elsevier, vol. 44(5).
    24. Hasbi, Maude & Dubus, Antoine, 2020. "Determinants of mobile broadband use in developing economies: Evidence from Sub-Saharan Africa," Telecommunications Policy, Elsevier, vol. 44(5).
    25. Asongu, Simplice A. & Odhiambo, Nicholas M., 2020. "Foreign direct investment, information technology and economic growth dynamics in Sub-Saharan Africa," Telecommunications Policy, Elsevier, vol. 44(1).
    26. Angelo Castaldo & Alessandro Fiorini & Bernardo Maggi, 2018. "Measuring (in a time of crisis) the impact of broadband connections on economic growth: an OECD panel analysis," Applied Economics, Taylor & Francis Journals, vol. 50(8), pages 838-854, February.
    27. Blundell, Richard & Bond, Stephen, 1998. "Initial conditions and moment restrictions in dynamic panel data models," Journal of Econometrics, Elsevier, vol. 87(1), pages 115-143, August.
    28. Beck, Thorsten & Demirguc-Kunt, Asli & Levine, Ross, 2003. "Law and finance: why does legal origin matter?," Journal of Comparative Economics, Elsevier, vol. 31(4), pages 653-675, December.
    29. Gina Porter & Kate Hampshire & James Milner & Alister Munthali & Elsbeth Robson & Ariane Lannoy & Andisiwe Bango & Nwabisa Gunguluza & Mac Mashiri & Augustine Tanle & Albert Abane, 2016. "Mobile Phones and Education in Sub‐Saharan Africa: From Youth Practice to Public Policy," Journal of International Development, John Wiley & Sons, Ltd., vol. 28(1), pages 22-39, January.
    30. Mwakatumbula, Hilda Jacob & Moshi, Goodiel Charles & Mitomo, Hitoshi, 2019. "Consumer protection in the telecommunication sector: A comparative institutional analysis of five African countries," Telecommunications Policy, Elsevier, vol. 43(7), pages 1-1.
    31. Bruce E. Hansen, 2000. "Sample Splitting and Threshold Estimation," Econometrica, Econometric Society, vol. 68(3), pages 575-604, May.
    32. Sajda Qureshi & Lotfollah Najjar, 2017. "Information and communications technology use and income growth: evidence of the multiplier effect in very small island states," Information Technology for Development, Taylor & Francis Journals, vol. 23(2), pages 212-234, April.
    33. Kafayat Amusa & Mutiu Abimbola Oyinlola, 2019. "The effectiveness of government expenditure on economic growth in Botswana," African Journal of Economic and Management Studies, Emerald Group Publishing, vol. 10(3), pages 368-384, September.
    34. 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.
    35. 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.
    36. Donou-Adonsou, Ficawoyi, 2019. "Technology, education, and economic growth in Sub-Saharan Africa," Telecommunications Policy, Elsevier, vol. 43(4), pages 353-360.
    37. David Roodman, 2009. "A Note on the Theme of Too Many Instruments," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 71(1), pages 135-158, February.
    38. 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.
    39. Anusua Datta & Sumit Agarwal, 2004. "Telecommunications and economic growth: a panel data approach," Applied Economics, Taylor & Francis Journals, vol. 36(15), pages 1649-1654.
    40. Asongu, Simplice A. & Biekpe, Nicholas, 2018. "ICT, information asymmetry and market power in African banking industry," Research in International Business and Finance, Elsevier, vol. 44(C), pages 518-531.
    41. Hansen, Bruce E, 1996. "Inference When a Nuisance Parameter Is Not Identified under the Null Hypothesis," Econometrica, Econometric Society, vol. 64(2), pages 413-430, March.
    42. Nina Czernich & Oliver Falck & Tobias Kretschmer & Ludger Woessmann, 2011. "Broadband Infrastructure and Economic Growth," Economic Journal, Royal Economic Society, vol. 121(552), pages 505-532, May.
    43. Chakraborty, Chandana & Nandi, Banani, 2011. "'Mainline' telecommunications infrastructure, levels of development and economic growth: Evidence from a panel of developing countries," Telecommunications Policy, Elsevier, vol. 35(5), pages 441-449, June.
    44. Nadiri, M. Ishaq & Nandi, Banani & Akoz, Kemal Kivanc, 2018. "Impact of modern communication infrastructure on productivity, production structure and factor demands of US industries: Impact revisited," Telecommunications Policy, Elsevier, vol. 42(6), pages 433-451.
    45. Odongo Kodongo & Kalu Ojah, 2016. "Does Infrastructure Really Explain Economic Growth in Sub-Saharan Africa?," Working Papers 653, Economic Research Southern Africa.
    46. Harald Gruber & Pantelis Koutroumpis, 2011. "Mobile telecommunications and the impact on economic development [Discussion of “Why is infrastructure important?” in Alicia H. Munnell, (ed.), Is there a shortfall in public capital investment?]," Economic Policy, CEPR;CES;MSH, vol. 26(67), pages 387-426.
    47. Noh, Yong-Hwan & Yoo, Kyeongwon, 2008. "Internet, inequality and growth," Journal of Policy Modeling, Elsevier, vol. 30(6), pages 1005-1016.
    48. 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.
    49. Oyinlola, Mutiu A. & Adedeji, Abdulfatai A. & Bolarinwa, Modupe O. & Olabisi, Nafisat, 2020. "Governance, domestic resource mobilization, and inclusive growth in sub-Saharan Africa," Economic Analysis and Policy, Elsevier, vol. 65(C), pages 68-88.
    50. Brambor, Thomas & Clark, William Roberts & Golder, Matt, 2006. "Understanding Interaction Models: Improving Empirical Analyses," Political Analysis, Cambridge University Press, vol. 14(1), pages 63-82, January.
    51. Koutroumpis, Pantelis, 2009. "The economic impact of broadband on growth: A simultaneous approach," Telecommunications Policy, Elsevier, vol. 33(9), pages 471-485, October.
    52. Vanessa S. Tchamyou, 2019. "The Role of Information Sharing in Modulating the Effect of Financial Access on Inequality," Journal of African Business, Taylor & Francis Journals, vol. 20(3), pages 317-338, July.
    53. Andrzej Cieślik & Magdalena Kaniewska, 2004. "Telecommunications Infrastructure and Regional Economic Development: The Case of Poland," Regional Studies, Taylor & Francis Journals, vol. 38(6), pages 713-725.
    54. Sevgi Sezer & Tezcan Abasiz, 2016. "The Effect Of Information And Communication Technologies On Economic Growth In Oecd Countries," Annals - Economy Series, Constantin Brancusi University, Faculty of Economics, vol. 6, pages 31-36, December.
    55. Kingsley E. Haynes & Serdar Yilmaz & Mustafa Dinc, 2006. "Regional Telecommunications Investment Impacts and Efficiency Considerations," Advances in Spatial Science, in: Börje Johansson & Charlie Karlsson & Roger Stough (ed.), The Emerging Digital Economy, chapter 11, pages 239-262, Springer.
    56. Myovella, Godwin & Karacuka, Mehmet & Haucap, Justus, 2020. "Digitalization and economic growth: A comparative analysis of Sub-Saharan Africa and OECD economies," Telecommunications Policy, Elsevier, vol. 44(2).
    57. repec:oup:ecpoli:v:26:y:2011:i:67:p:387-426 is not listed on IDEAS
    58. Vu, Khuong & Hanafizadeh, Payam & Bohlin, Erik, 2020. "ICT as a driver of economic growth: A survey of the literature and directions for future research," Telecommunications Policy, Elsevier, vol. 44(2).
    59. Mr. Kangni R Kpodar & Mihasonirina Andrianaivo, 2011. "ICT, Financial Inclusion, and Growth: Evidence from African Countries," IMF Working Papers 2011/073, International Monetary Fund.
    60. Albiman, Masoud Mohammed & Sulong, Zunaidah, 2017. "The linear and non-linear impacts of ICT on economic growth, of disaggregate income groups within SSA region," Telecommunications Policy, Elsevier, vol. 41(7), pages 555-572.
    61. Choi, Changkyu & Hoon Yi, Myung, 2009. "The effect of the Internet on economic growth: Evidence from cross-country panel data," Economics Letters, Elsevier, vol. 105(1), pages 39-41, October.
    62. 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.
    63. Elgin, Ceyhun, 2013. "Internet usage and the shadow economy: Evidence from panel data," Economic Systems, Elsevier, vol. 37(1), pages 111-121.
    64. 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.
    65. Forenbacher, Ivan & Husnjak, Siniša & Cvitić, Ivan & Jovović, Ivan, 2019. "Determinants of mobile phone ownership in Nigeria," Telecommunications Policy, Elsevier, vol. 43(7), pages 1-1.
    66. Raul Katz & Stephan Vaterlaus & Patrick Zenhäusern & Stephan Suter, 2010. "The impact of broadband on jobs and the German economy," Intereconomics: Review of European Economic Policy, Springer;ZBW - Leibniz Information Centre for Economics;Centre for European Policy Studies (CEPS), vol. 45(1), pages 26-34, January.
    67. Haftu, Girmay Giday, 2019. "Information communications technology and economic growth in Sub-Saharan Africa: A panel data approach," Telecommunications Policy, Elsevier, vol. 43(1), pages 88-99.
    68. N'dri, Lasme Mathieu & Kakinaka, Makoto, 2020. "Financial inclusion, mobile money, and individual welfare: The case of Burkina Faso," Telecommunications Policy, Elsevier, vol. 44(3).
    69. Kangni Kpodar & Mihasonirina Andrianaivo, 2011. "ICT, Financial Inclusion and Growth: Evidence from African Countries," Post-Print halshs-00602411, HAL.
    70. Maryam Farhadi & Rahmah Ismail & Masood Fooladi, 2012. "Information and Communication Technology Use and Economic Growth," PLOS ONE, Public Library of Science, vol. 7(11), pages 1-7, November.
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    More about this item

    Keywords

    Internet access; economic growth; government regulations; trade openness; tariff regimes; sub-Saharan Africa;
    All these keywords.

    JEL classification:

    • C0 - Mathematical and Quantitative Methods - - General
    • G0 - Financial Economics - - General
    • O1 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development

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