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This study examined the effects of both aggregate and disaggregated infrastructural
development indices (such as transport, electricity, ICT, and water and sanitation
infrastructure indices) on economic performance in Africa. The study used the
dynamic system GMM framework and found that both aggregate and disaggregated
infrastructural development indices impact positively on GDP per capita growth in
Africa. These impacts were shown to be significant in all cases, except for the trans-
portation infrastructure index. The results overwhelmingly confirmed the prevalence
of the symmetric hypothesis in the infrastructure–growth relationship in Africa.
The study also found some evidence in support of the significant roles of capital,
labour and initial GDP per capita in Africa’s economic performance, while the role
of trade remained negative and muted. The study concluded that through effective
public administration, African leaders and policymakers can promote economic per-
formance on the continent by evolving policies that favour increased infrastructural
development, human capital development and capital accumulation.
