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The Role of Openness in the Effect of ICT on Governance

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  • Simplice Asongu

    (Yaoundé/Cameroun)

  • Jacinta Nwachukwu

    (Coventry University, UK)

Abstract

The study investigates how openness influences information and communication technology (ICT) penetration for improved government quality in sub-Saharan Africa for the period 2000-2012. Openness is measured in terms of trade and financial globalisation whereas ICT is proxied with mobile phone and internet penetration rates. Ten bundled and unbundled governance indicators are used. The empirical evidence is based on Generalised Method of Moments with forward orthogonal deviations. The main findings are: First, financial openness has an edge over trade openness when combined with ICT to affect both economic and institutional governance. Second, mobile phones have an edge over internet penetration in complementing (i) trade openness for economic governance and (ii) financial openness for institutional governance. Third, net effects on political governance are consistently negative. Taken together, in the short-run, openness-driven ICT policies are more rewarding in terms of economic and institutional governance than political governance. Fourth, catch-up in governance is facilitated by the interaction between openness and ICT. Contributions of these findings to literature are discussed.

Suggested Citation

  • Simplice Asongu & Jacinta Nwachukwu, 2017. "The Role of Openness in the Effect of ICT on Governance," Working Papers of the African Governance and Development Institute. 17/050, African Governance and Development Institute..
  • Handle: RePEc:agd:wpaper:17/050
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    1. Daniel Lederman & Norman V. Loayza & Rodrigo R. Soares, 2005. "Accountability And Corruption: Political Institutions Matter," Economics and Politics, Wiley Blackwell, vol. 17, pages 1-35, March.
    2. anonymous, 1995. "Does the bouncing ball lead to economic growth?," Regional Update, Federal Reserve Bank of Atlanta, issue Jul, pages 1-2,4-6.
    3. T. W. Swan, 1956. "ECONOMIC GROWTH and CAPITAL ACCUMULATION," The Economic Record, The Economic Society of Australia, vol. 32(2), pages 334-361, November.
    4. Simplice A. Asongu & Jacinta C. Nwachukwu, 2016. "The role of lifelong learning on political stability and non violence: evidence from Africa," Journal of Economic Studies, Emerald Group Publishing, vol. 43(1), pages 141-164, January.
    5. Hopestone Kayiska Chavula, 2013. "Telecommunications development and economic growth in Africa," Information Technology for Development, Taylor & Francis Journals, vol. 19(1), pages 5-23, January.
    6. Simplice A. Asongu, 2017. "Knowledge Economy Gaps, Policy Syndromes, and Catch-Up Strategies: Fresh South Korean Lessons to Africa," Journal of the Knowledge Economy, Springer;Portland International Center for Management of Engineering and Technology (PICMET), vol. 8(1), pages 211-253, March.
    7. Giuseppe Bruno & Riccardo De Bonis, 2009. "Do financial systems converge? New evidence from household financial assets in selected OECD countries," IFC Bulletins chapters, in: Bank for International Settlements (ed.), Proceedings of the IFC Conference on "Measuring financial innovation and its impact", Basel, 26-27 August 2008, volume 31, pages 383-401, Bank for International Settlements.
    8. 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.
    9. Marco Manacorda & Andrea Tesei, 2020. "Liberation Technology: Mobile Phones and Political Mobilization in Africa," Econometrica, Econometric Society, vol. 88(2), pages 533-567, March.
    10. Simplice A. Asongu & Jacinta C. Nwachukwu, 2016. "Revolution empirics: predicting the Arab Spring," Empirical Economics, Springer, vol. 51(2), pages 439-482, September.
    11. Simplice Asongu, 2014. "Globalization (fighting), corruption and development: How are these phenomena linearly and nonlinearly related in wealth effects?," Journal of Economic Studies, Emerald Group Publishing, vol. 41(3), pages 346-369, May.
    12. Augustin Kwasi Fosu, 2013. "Growth of African Economies: Productivity, Policy Syndromes and the Importance of Institutions," Journal of African Economies, Centre for the Study of African Economies (CSAE), vol. 22(4), pages 523-551, August.
    13. M. Hashem Pesaran, 2006. "Estimation and Inference in Large Heterogeneous Panels with a Multifactor Error Structure," Econometrica, Econometric Society, vol. 74(4), pages 967-1012, July.
    14. Stephen Bond & Anke Hoeffler & Jonathan Temple, 2001. "GMM Estimation of Empirical Growth Models," Economics Papers 2001-W21, Economics Group, Nuffield College, University of Oxford.
    15. Westerlund, Joakim & Urbain, Jean-Pierre, 2013. "On the implementation and use of factor-augmented regressions in panel data," Journal of Asian Economics, Elsevier, vol. 28(C), pages 3-11.
    16. David Mayer-Foulkes, 2010. "Divergences and Convergences in Human Development," Human Development Research Papers (2009 to present) HDRP-2010-20, Human Development Report Office (HDRO), United Nations Development Programme (UNDP).
    17. Robert J. Barro, 2013. "Inflation and Economic Growth," Annals of Economics and Finance, Society for AEF, vol. 14(1), pages 121-144, May.
    18. Shapiro, Jacob N. & Weidmann, Nils B., 2015. "Is the Phone Mightier Than the Sword? Cellphones and Insurgent Violence in Iraq," International Organization, Cambridge University Press, vol. 69(2), pages 247-274, April.
    19. Simplice Asongu & John Ssozi, 2016. "Sino-African Relations: Some Solutions and Strategies to the Policy Syndromes," Journal of African Business, Taylor & Francis Journals, vol. 17(1), pages 33-51, January.
    20. Colin McKenzie & Michael McAleer, 1997. "On Efficient Estimation and Correct Inference in Models with Generated Regressors: a General Approach," The Japanese Economic Review, Japanese Economic Association, vol. 48(4), pages 368-389, December.
    21. Petrakis, P. E. & Stamatakis, D., 2002. "Growth and educational levels: a comparative analysis," Economics of Education Review, Elsevier, vol. 21(5), pages 513-521, October.
    22. Bruno, Giuseppe & De Bonis, Riccardo & Silvestrini, Andrea, 2012. "Do financial systems converge? New evidence from financial assets in OECD countries," Journal of Comparative Economics, Elsevier, vol. 40(1), pages 141-155.
    23. Simplice A. Asongu, 2013. "How has Mobile Phone Penetration Stimulated Financial Development in Africa?," Journal of African Business, Taylor & Francis Journals, vol. 14(1), pages 7-18, April.
    24. 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.
    25. Federico Varese, 1997. "The Transition to the Market and Corruption in Post–socialist Russia," Political Studies, Political Studies Association, vol. 45(3), pages 579-596, August.
    26. Augustin Kwasi Fosu, 2015. "Growth, Inequality and Poverty in Sub-Saharan Africa: Recent Progress in a Global Context," Oxford Development Studies, Taylor & Francis Journals, vol. 43(1), pages 44-59, March.
    27. 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.
    28. Pádraig Carmody, 2013. "A knowledge economy or an information society in Africa? Thintegration and the mobile phone revolution," Information Technology for Development, Taylor & Francis Journals, vol. 19(1), pages 24-39, January.
    29. 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.
    30. Truex, Rory, 2011. "Corruption, Attitudes, and Education: Survey Evidence from Nepal," World Development, Elsevier, vol. 39(7), pages 1133-1142, July.
    31. Robert J. Barro, 1991. "Economic Growth in a Cross Section of Countries," The Quarterly Journal of Economics, Oxford University Press, vol. 106(2), pages 407-443.
    32. Federico Bonaglia & Jorge Braga de Macedo & Maurizio Bussolo, 2009. "How Globalisation Improves Governance," Chapters, in: Linda Yueh (ed.), The Law and Economics of Globalisation, chapter 7, Edward Elgar Publishing.
    33. Badi H. Baltagi, 2008. "Forecasting with panel data," Journal of Forecasting, John Wiley & Sons, Ltd., vol. 27(2), pages 153-173.
    34. Simplice A Asongu & Lieven De Moor, 2017. "Financial Globalisation Dynamic Thresholds for Financial Development: Evidence from Africa," The European Journal of Development Research, Palgrave Macmillan;European Association of Development Research and Training Institutes (EADI), vol. 29(1), pages 192-212, January.
    35. Greenaway-McGrevy, Ryan & Han, Chirok & Sul, Donggyu, 2012. "Asymptotic distribution of factor augmented estimators for panel regression," Journal of Econometrics, Elsevier, vol. 169(1), pages 48-53.
    36. Baumol, William J, 1986. "Productivity Growth, Convergence, and Welfare: What the Long-run Data Show," American Economic Review, American Economic Association, vol. 76(5), pages 1072-1085, December.
    37. Sajda Qureshi, 2013. "What is the role of mobile phones in bringing about growth?," Information Technology for Development, Taylor & Francis Journals, vol. 19(1), pages 1-4, January.
    38. Jushan Bai, 2009. "Panel Data Models With Interactive Fixed Effects," Econometrica, Econometric Society, vol. 77(4), pages 1229-1279, July.
    39. Thierry PENARD & Nicolas POUSSING & Gabriel ZOMO YEBE & Philémon NSI ELLA, 2012. "Comparing the Determinants of Internet and Cell Phone Use in Africa: Evidence from Gabon," Communications & Strategies, IDATE, Com&Strat dept., vol. 1(86), pages 65-83, 2nd quart.
    40. Westerlund, Joakim & Urbain, Jean-Pierre, 2013. "On the estimation and inference in factor-augmented panel regressions with correlated loadings," Economics Letters, Elsevier, vol. 119(3), pages 247-250.
    41. 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.
    42. Asongu, Simplice, 2015. "Determinants of Growth in Fast Developing Countries: Evidence from Bundling and Unbundling Institutions," MPRA Paper 67310, University Library of Munich, Germany.
    43. 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.
    44. Wade, Robert, 1985. "The market for public office: Why the Indian state is not better at development," World Development, Elsevier, vol. 13(4), pages 467-497, April.
    45. Simplice Asongu, 2015. "The impact of mobile phone penetration on African inequality," International Journal of Social Economics, Emerald Group Publishing, vol. 42(8), pages 706-716, August.
    46. Narayan, Paresh Kumar & Mishra, Sagarika & Narayan, Seema, 2011. "Do market capitalization and stocks traded converge? New global evidence," Journal of Banking & Finance, Elsevier, vol. 35(10), pages 2771-2781, October.
    47. Naci Mocan, 2008. "What Determines Corruption? International Evidence From Microdata," Economic Inquiry, Western Economic Association International, vol. 46(4), pages 493-510, October.
    48. 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.
    49. Robert M. Solow, 1956. "A Contribution to the Theory of Economic Growth," The Quarterly Journal of Economics, Oxford University Press, vol. 70(1), pages 65-94.
    50. Uchenna Efobi, 2015. "Politicians’ Attributes and Institutional Quality in Africa: A Focus on Corruption," Journal of Economic Issues, Taylor & Francis Journals, vol. 49(3), pages 787-813, July.
    51. Stephen Oluwatobi & Uchenna Efobi & Isaiah Olurinola & Philip Alege, 2015. "Innovation in Africa: Why Institutions Matter," South African Journal of Economics, Economic Society of South Africa, vol. 83(3), pages 390-410, September.
    52. Treisman, Daniel, 2000. "The causes of corruption: a cross-national study," Journal of Public Economics, Elsevier, vol. 76(3), pages 399-457, June.
    53. Iris Claus & Arthur Grimes, 2003. "Asymmetric Information, Financial Intermediation and the Monetary Transmission Mechanism: A Critical Review," Treasury Working Paper Series 03/19, New Zealand Treasury.
    54. Stephen Bond & Anke Hoeffler, 2001. "GMM Estimation of Empirical Growth Models," Economics Series Working Papers 2001-W21, University of Oxford, Department of Economics.
    55. Elizabeth Asiedu, 2014. "Does Foreign Aid In Education Promote Economic Growth? Evidence From Sub-Saharan Africa," Journal of African Development, African Finance and Economic Association (AFEA), vol. 16(1), pages 37-59.
    56. Manuel Arellano & Stephen Bond, 1991. "Some Tests of Specification for Panel Data: Monte Carlo Evidence and an Application to Employment Equations," Review of Economic Studies, Oxford University Press, vol. 58(2), pages 277-297.
    57. Azmat Gani, 2011. "Governance and Growth in Developing Countries," Journal of Economic Issues, Taylor & Francis Journals, vol. 45(1), pages 19-40.
    58. Stock J.H. & Watson M.W., 2002. "Forecasting Using Principal Components From a Large Number of Predictors," Journal of the American Statistical Association, American Statistical Association, vol. 97, pages 1167-1179, December.
    59. 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.
    60. Sajda Qureshi, 2013. "Networks of change, shifting power from institutions to people: how are innovations in the use of information and communication technology transforming development?," Information Technology for Development, Taylor & Francis Journals, vol. 19(2), pages 97-99, April.
    61. Lalountas, Dionisios A. & Manolas, George A. & Vavouras, Ioannis S., 2011. "Corruption, globalization and development: How are these three phenomena related?," Journal of Policy Modeling, Elsevier, vol. 33(4), pages 636-648, July.
    62. Simplice Asongu, 2014. "African Development: Beyond Income Convergence," South African Journal of Economics, Economic Society of South Africa, vol. 82(3), pages 334-353, September.
    63. Oxley, Les & McAleer, Michael, 1993. "Econometric Issues in Macroeconomic Models with Generated Regressors," Journal of Economic Surveys, Wiley Blackwell, vol. 7(1), pages 1-40.
    64. Xavier Sala-I-Martin, 1997. "Transfers, Social Safety Nets, and Economic Growth," IMF Staff Papers, Palgrave Macmillan, vol. 44(1), pages 81-102, March.
    65. Pagan, Adrian, 1984. "Econometric Issues in the Analysis of Regressions with Generated Regressors," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 25(1), pages 221-247, February.
    66. Sajda Qureshi, 2013. "Information and Communication Technologies in the Midst of Global Change: How do we Know When Development Takes Place?," Information Technology for Development, Taylor & Francis Journals, vol. 19(3), pages 189-192, July.
    67. Pierskalla, Jan H. & Hollenbach, Florian M., 2013. "Technology and Collective Action: The Effect of Cell Phone Coverage on Political Violence in Africa," American Political Science Review, Cambridge University Press, vol. 107(2), pages 207-224, May.
    68. Henry Kaiser, 1974. "An index of factorial simplicity," Psychometrika, Springer;The Psychometric Society, vol. 39(1), pages 31-36, March.
    69. Jushan Bai, 2003. "Inferential Theory for Factor Models of Large Dimensions," Econometrica, Econometric Society, vol. 71(1), pages 135-171, January.
    70. Jushan Bai & Serena Ng, 2006. "Confidence Intervals for Diffusion Index Forecasts and Inference for Factor-Augmented Regressions," Econometrica, Econometric Society, vol. 74(4), pages 1133-1150, July.
    71. Augustin Kwasi Fosu, 2013. "Growth of African Economies: Productivity, Policy Syndromes and the Importance of Institutions," Journal of African Economies, Centre for the Study of African Economies (CSAE), vol. 22(4), pages 523-551, August.
    72. 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.
    73. Fung, Michael K., 2009. "Financial development and economic growth: Convergence or divergence?," Journal of International Money and Finance, Elsevier, vol. 28(1), pages 56-67, February.
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    More about this item

    Keywords

    Openness; ICT; Governance; Africa;
    All these keywords.

    JEL classification:

    • F40 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - General
    • O38 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Government Policy
    • O40 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - General
    • O55 - Economic Development, Innovation, Technological Change, and Growth - - Economywide Country Studies - - - Africa
    • P37 - Economic Systems - - Socialist Institutions and Their Transitions - - - Legal

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