Institutional Quality, Infrastructure and Economic Growth in Africa

Herman Sahni, Christian Nsiah, Bichaka Fayissa

African Finance & Economics Association | Allied Social Sciences Association 2020


  • Motivation and objectives
  • Literature review & contributions
  • Empirical models
  • Results
  • Conclusions and Policy Implications




Infrastructure Quality Index


Literature (cont’d.)

Infrastructure Quality Index

Electricity Issues

  • Frequent power outages, restricting access to electricity to a third of Africa‚Äôs population, reducing its productivity by as much as 40%, and curtailing its annual economic growth by about 2% ( PIDA, 2014)
  • Only 30% of African countries have access to electricity relative to 70%-90% of other developing countries


Infrastructure & Growth

  • Well-designed infrastructure investments (Energy, transport, digital communications, waste disposal networks, and water and sanitation facilities) have long-term economic benefits
    • Infrastructure raise productivity, decrease transportation and communication costs, increase land values, improve health
    • Cause significant positive spillovers.

Motivation (cont’d.)

Infrastructure & Growth

  • However, investing wisely in infrastructure is critically important
    • Over-investment can lead to inefficiency and low marginal returns
  • Channels through which infrastructure impacts growth
    • direct input into the production process
    • complement to other inputs into the production process
    • stimulant to factor accumulation by providing facilities for human development
    • tool to guide industrial policy ( Wolassa, 2012).


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